St Ives - Porthminster (Beach) (Cornwall) weather

Here are our top tips to keep you, your friends and family safe at the beach with links to Royal National Lifeboat Institution (RNLI) and Met Office advice.



Forecast days

Light rain.
Beach safety today
Use caution in and out of the sea. Strong winds may blow you off course or affect your balance
  • • paddle boarding/kayaking not recommended at any level
  • • consider your abilities in all other activities, seek expert advice

Tide: Next low tide (2.1m) at

Sunrise iconSunrise:
Sunset iconSunset:
M UV
L Pollution
No pollen data.

    7 day forecast for St Ives - Porthminster (Beach)

    Today (17 September 2025)
    Time
    22:00
    23:00
    Weather symbols Light rain Light rain
    Chance of precipitation
    60%
    50%
    Temperature
    17°
    17°
    Feels like temperature (°C)
    13°
    13°
    Wind direction and speed
    SW
    20
    SW
    20
    Wind gust (mph)
    30
    29
    Visibility
    M
    M
    Humidity
    93%
    93%
    UV - -
    Wind direction and speed
    20
    20
    Height of waves offshore (m)
    0.7
    0.7
    Period of waves offshore (s)
    13
    13
    Direction of waves offshore
    Thursday (18 September 2025)
    Time
    00:00
    01:00
    02:00
    03:00
    04:00
    05:00
    06:00
    07:00
    08:00
    09:00
    10:00
    11:00
    12:00
    13:00
    14:00
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Drizzle Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast
    Chance of precipitation
    40%
    30%
    30%
    30%
    20%
    20%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    18°
    18°
    18°
    18°
    18°
    18°
    18°
    17°
    17°
    17°
    16°
    16°
    16°
    Feels like temperature (°C)
    13°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    14°
    14°
    14°
    14°
    14°
    14°
    Wind direction and speed (mph)
    SW
    20
    SW
    20
    SW
    19
    SW
    19
    SW
    19
    SW
    19
    SW
    18
    SW
    17
    SSW
    16
    SSW
    16
    SSW
    16
    SSW
    17
    SSW
    18
    SSW
    19
    SSW
    19
    SSW
    19
    SSW
    19
    SSW
    18
    SSW
    18
    SSW
    17
    SSW
    16
    SSW
    15
    S
    14
    S
    14
    Wind gust (mph)
    28
    28
    29
    28
    28
    28
    28
    27
    27
    28
    29
    30
    30
    31
    32
    30
    29
    28
    27
    27
    26
    26
    24
    25
    Visibility (description)
    G
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    93%
    94%
    94%
    94%
    94%
    93%
    93%
    92%
    91%
    89%
    87%
    86%
    87%
    86%
    85%
    85%
    86%
    86%
    86%
    88%
    91%
    90%
    88%
    87%
    UV - - - - - - - 1 1 1 1 2 3 3 3 2 1 1 1 1 - - - -
    Wind direction and speed (mph)
    20
    20
    19
    19
    19
    19
    18
    17
    16
    16
    16
    17
    18
    19
    19
    19
    18
    18
    17
    17
    15
    15
    14
    14
    Height of waves offshore (m)
    0.6
    0.6
    0.6
    0.6
    0.6
    0.6
    0.6
    0.6
    0.6
    0.6
    0.6
    0.5
    0.5
    0.5
    0.5
    0.5
    0.5
    0.5
    0.5
    0.5
    0.5
    0.4
    0.4
    0.4
    Period of waves offshore (s)
    12
    12
    12
    12
    12
    12
    12
    12
    12
    12
    11
    11
    11
    11
    11
    11
    11
    11
    11
    11
    10
    10
    10
    10
    Direction of waves offshore
    Friday (19 September 2025)
    Time
    00:00
    01:00
    02:00
    03:00
    04:00
    05:00
    06:00
    07:00
    08:00
    09:00
    10:00
    11:00
    12:00
    13:00
    14:00
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Overcast Overcast Overcast Cloudy Cloudy Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Cloudy Cloudy Overcast Cloudy Overcast Overcast Overcast Overcast Overcast Overcast Overcast
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    10%
    20%
    30%
    30%
    30%
    30%
    30%
    30%
    30%
    30%
    30%
    30%
    30%
    40%
    40%
    50%
    Temperature (°C)
    16°
    16°
    16°
    16°
    16°
    16°
    16°
    16°
    16°
    16°
    17°
    17°
    18°
    18°
    18°
    18°
    17°
    17°
    17°
    16°
    16°
    16°
    16°
    16°
    Feels like temperature (°C)
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    15°
    15°
    16°
    16°
    16°
    16°
    16°
    16°
    15°
    15°
    15°
    15°
    15°
    14°
    Wind direction and speed (mph)
    S
    13
    S
    13
    S
    13
    S
    13
    S
    13
    S
    13
    S
    14
    S
    13
    S
    13
    S
    14
    SSW
    14
    SSW
    14
    SSW
    13
    SSW
    13
    SSW
    13
    SSW
    13
    SW
    11
    SSW
    10
    SSW
    10
    SSW
    10
    SSW
    9
    S
    9
    SSW
    9
    SSW
    10
    Wind gust (mph)
    25
    24
    24
    23
    23
    22
    22
    22
    21
    22
    23
    22
    21
    19
    17
    15
    15
    16
    15
    14
    13
    14
    14
    16
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    VG
    VG
    VG
    VG
    Humidity
    86%
    86%
    88%
    88%
    90%
    91%
    92%
    91%
    91%
    91%
    91%
    92%
    92%
    91%
    91%
    89%
    90%
    90%
    90%
    91%
    91%
    92%
    92%
    92%
    UV - - - - - - - 1 1 1 2 2 3 3 3 2 1 1 1 1 - - - -
    Wind direction and speed (mph)
    13
    13
    13
    13
    13
    13
    13
    13
    13
    14
    14
    14
    13
    13
    12
    12
    11
    11
    10
    10
    10
    10
    9
    10
    Height of waves offshore (m)
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.4
    0.4
    0.3
    0.3
    0.3
    0.3
    0.2
    0.2
    0.2
    0.2
    0.2
    0.3
    0.3
    0.3
    0.3
    0.2
    0.2
    0.2
    Period of waves offshore (s)
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    Direction of waves offshore
    Saturday (20 September 2025)
    Time
    00:00
    01:00
    02:00
    03:00
    04:00
    05:00
    06:00
    07:00
    08:00
    09:00
    10:00
    11:00
    12:00
    13:00
    14:00
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Light rain Light rain Light rain Light rain Light rain Light rain Light rain Heavy rain Heavy rain Heavy rain Light rain Light rain Light rain Cloudy Sunny intervals Sunny intervals Sunny intervals Light shower day Light shower day Light shower night Light shower night Light shower night Light shower night Light shower night
    Chance of precipitation
    50%
    60%
    50%
    60%
    60%
    70%
    70%
    70%
    80%
    70%
    60%
    60%
    60%
    50%
    50%
    40%
    40%
    50%
    60%
    60%
    60%
    60%
    60%
    60%
    Temperature (°C)
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    14°
    15°
    15°
    15°
    15°
    15°
    16°
    15°
    15°
    15°
    15°
    14°
    14°
    13°
    13°
    13°
    Feels like temperature (°C)
    14°
    14°
    14°
    13°
    13°
    13°
    13°
    13°
    12°
    12°
    12°
    12°
    12°
    12°
    13°
    12°
    12°
    12°
    11°
    11°
    10°
    10°
    10°
    10°
    Wind direction and speed (mph)
    S
    9
    S
    10
    S
    11
    SW
    11
    SSW
    11
    SW
    11
    SW
    12
    S
    13
    ESE
    13
    WNW
    15
    NW
    16
    NW
    17
    NW
    18
    NW
    17
    W
    17
    WNW
    18
    W
    18
    W
    19
    W
    19
    W
    19
    W
    19
    W
    18
    W
    18
    W
    19
    Wind gust (mph)
    15
    15
    15
    16
    17
    16
    16
    20
    19
    19
    18
    23
    22
    25
    26
    28
    27
    29
    28
    26
    26
    26
    24
    21
    Visibility (description)
    VG
    VG
    VG
    VG
    G
    G
    G
    M
    M
    G
    VG
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    Humidity
    92%
    92%
    92%
    92%
    92%
    93%
    93%
    92%
    92%
    91%
    89%
    87%
    85%
    83%
    80%
    76%
    77%
    78%
    75%
    77%
    78%
    76%
    75%
    75%
    UV - - - - - - - 1 1 1 1 2 2 4 3 3 2 1 1 1 - - - -
    Wind direction and speed (mph)
    10
    10
    10
    11
    11
    12
    12
    13
    14
    15
    16
    17
    17
    17
    18
    18
    19
    19
    19
    19
    19
    19
    18
    18
    Height of waves offshore (m)
    0.2
    0.2
    0.5
    0.7
    1.0
    1.0
    1.0
    1.0
    1.1
    1.1
    1.1
    1.4
    1.7
    1.9
    2.3
    2.6
    3.0
    2.8
    2.7
    2.5
    2.5
    2.4
    2.3
    2.3
    Period of waves offshore (s)
    10
    9
    9
    9
    9
    9
    9
    10
    10
    10
    10
    9
    9
    9
    9
    9
    9
    9
    9
    8
    8
    8
    8
    8
    Direction of waves offshore
    Sunday (21 September 2025)
    Time
    00:00
    01:00
    02:00
    03:00
    04:00
    05:00
    06:00
    07:00
    08:00
    09:00
    10:00
    11:00
    12:00
    13:00
    14:00
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Light shower night Light shower night Light shower night Light shower night Light shower night Light shower night Light shower night Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower night Light shower night Light shower night Light shower night Partly cloudy night
    Chance of precipitation
    60%
    60%
    60%
    60%
    60%
    60%
    60%
    60%
    60%
    60%
    70%
    60%
    60%
    60%
    60%
    60%
    50%
    50%
    60%
    60%
    60%
    60%
    50%
    50%
    Temperature (°C)
    13°
    13°
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    13°
    13°
    14°
    13°
    13°
    13°
    14°
    13°
    13°
    13°
    12°
    12°
    12°
    11°
    Feels like temperature (°C)
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    Wind direction and speed (mph)
    WNW
    18
    NW
    18
    NW
    17
    NW
    18
    NW
    18
    NNW
    19
    NNW
    19
    NNW
    19
    N
    18
    N
    18
    N
    18
    N
    18
    N
    19
    N
    20
    N
    21
    N
    22
    N
    22
    N
    23
    N
    22
    N
    22
    NNE
    22
    N
    21
    NNE
    20
    NE
    19
    Wind gust (mph)
    21
    20
    19
    21
    21
    22
    24
    24
    26
    27
    26
    28
    30
    32
    33
    35
    33
    33
    34
    30
    30
    30
    30
    30
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    Humidity
    74%
    75%
    76%
    77%
    78%
    76%
    76%
    74%
    76%
    75%
    74%
    73%
    72%
    70%
    71%
    71%
    66%
    70%
    71%
    67%
    67%
    67%
    66%
    69%
    UV - - - - - - - 1 1 1 2 3 3 4 3 2 1 1 1 1 - - - -
    Wind direction and speed (mph)
    18
    18
    18
    18
    18
    18
    18
    18
    18
    18
    18
    18
    19
    20
    20
    21
    22
    22
    22
    22
    21
    21
    20
    20
    Height of waves offshore (m)
    2.4
    2.4
    2.3
    2.3
    2.3
    2.3
    2.2
    2.2
    2.1
    2.0
    2.0
    1.9
    1.8
    1.7
    1.7
    1.6
    1.5
    1.5
    1.4
    1.4
    1.3
    1.3
    1.3
    1.4
    Period of waves offshore (s)
    8
    8
    8
    8
    8
    8
    8
    8
    8
    8
    8
    8
    9
    9
    9
    9
    9
    8
    8
    8
    8
    8
    8
    8
    Direction of waves offshore
    Monday (22 September 2025)
    Time
    00:00
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Partly cloudy night Light shower night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night
    Chance of precipitation
    50%
    50%
    50%
    40%
    30%
    20%
    10%
    10%
    10%
    Temperature (°C)
    11°
    11°
    11°
    10°
    13°
    14°
    14°
    13°
    12°
    Feels like temperature (°C)
    11°
    11°
    10°
    Wind direction and speed (mph)
    NE
    18
    NNE
    17
    NE
    16
    NE
    16
    NE
    17
    NE
    17
    NNE
    17
    NNE
    17
    NNE
    15
    Wind gust (mph)
    28
    27
    26
    27
    26
    27
    25
    25
    23
    Visibility (description)
    E
    E
    E
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    70%
    70%
    69%
    69%
    70%
    67%
    67%
    64%
    64%
    UV - - - 1 2 4 1 1 -
    Wind direction and speed (mph)
    19
    18
    17
    17
    17
    18
    17
    17
    15
    Height of waves offshore (m)
    1.6
    1.7
    1.9
    1.8
    1.6
    1.4
    1.3
    1.3
    1.3
    Period of waves offshore (s)
    8
    8
    8
    8
    7
    7
    6
    6
    6
    Direction of waves offshore
    Tuesday (23 September 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Cloudy
    Chance of precipitation
    10%
    10%
    10%
    10%
    10%
    10%
    <5%
    10%
    Temperature (°C)
    11°
    11°
    10°
    13°
    15°
    15°
    13°
    11°
    Feels like temperature (°C)
    11°
    12°
    12°
    10°
    Wind direction and speed (mph)
    NNE
    14
    NNE
    13
    NNE
    13
    NNE
    14
    NNE
    15
    NNE
    15
    NNE
    14
    NNE
    12
    Wind gust (mph)
    20
    19
    19
    19
    19
    19
    18
    16
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    66%
    68%
    69%
    69%
    67%
    65%
    66%
    67%
    UV - - 1 2 4 2 1 -
    Wind direction and speed (mph)
    14
    Height of waves offshore (m)
    1.1
    Period of waves offshore (s)
    6
    Direction of waves offshore

    Tide times

    Wednesday 17 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Wednesday 17 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Wednesday 17 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Wednesday 17 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 18 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 18 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 18 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 18 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Friday 19 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Friday 19 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Friday 19 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Friday 19 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Saturday 20 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Saturday 20 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Saturday 20 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Saturday 20 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Sunday 21 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Sunday 21 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Sunday 21 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Sunday 21 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Monday 22 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Monday 22 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Monday 22 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Monday 22 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Tuesday 23 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Tuesday 23 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Tuesday 23 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Tuesday 23 September

    Tide times and heights are from St. Ives tidal station which is 0.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    UK video forecast

    St Ives - Porthminster (Beach) weather map

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    WARNING
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    Flood warnings in force for England
    Flood warnings in force for England

    South West England weather forecast

    Headline:

    Cloudy with outbreaks of rain. Breezy.

    This Evening and Tonight:

    Cloudy this evening with further spells of rain and drizzle intermittently through the night, heaviest in the north and over the Moors. Remaining windy, especially at the coasts, and feeling rather muggy overnight. Minimum temperature 15 °C.

    Thursday:

    A cloudy and mild start to Thursday with some drizzle in places. Turning drier through the afternoon with some brighter intervals. Feeling humid and staying windy. Maximum temperature 20 °C.

    Outlook for Friday to Sunday:

    Remaining changeable with showers or longer spells of rain at times. Some brighter periods are also likely, mainly on Friday. Temperatures close to average but turning colder through Sunday. Breezy.

    Updated:

    UK long range weather forecast

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