Portland Harbour - Sandsfoot Castle (Beach) (Dorset) 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

Sunny intervals.
🏖️ Beach safety today:

Enjoy the beach but be aware that the wind may affect your control of direction

• Beginner paddleboarders/kayakers should go on the water with an instructor or a more experienced person

Tide: Next low tide (1.5m) at

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

    7 day forecast for Portland Harbour - Sandsfoot Castle (Beach)

    Today (14 March 2026)
    Time
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Sunny intervals Sunny intervals Sunny intervals Clear night Clear night Clear night Clear night Clear night Clear night
    Chance of precipitation
    <5%
    20%
    20%
    20%
    20%
    10%
    10%
    <5%
    <5%
    Temperature
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed
    W
    8
    W
    8
    W
    8
    W
    7
    WNW
    6
    NW
    5
    NW
    5
    NW
    5
    NW
    4
    Wind gust (mph)
    16
    18
    17
    16
    16
    15
    13
    12
    10
    Visibility
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    58%
    60%
    68%
    77%
    80%
    82%
    81%
    83%
    83%
    UV 1 1 1 1 - - - - -
    Wind direction and speed
    8
    8
    7
    6
    5
    5
    5
    4
    Height of waves offshore (m)
    0.0
    0.0
    0.0
    0.0
    0.0
    0.0
    0.0
    0.0
    Period of waves offshore (s)
    15
    15
    15
    15
    15
    15
    15
    15
    Direction of waves offshore
    Sunday (15 March 2026)
    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 Clear night Partly cloudy night Partly cloudy night Cloudy Cloudy Cloudy Cloudy Cloudy Overcast Overcast Overcast Overcast Overcast Overcast Overcast Sunny intervals Sunny intervals Sunny intervals Clear night Clear night Clear night Clear night Clear night Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    10%
    10%
    10%
    10%
    40%
    40%
    40%
    50%
    20%
    10%
    <5%
    <5%
    10%
    10%
    10%
    Temperature (°C)
    10°
    10°
    10°
    10°
    11°
    11°
    11°
    11°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    WNW
    4
    NW
    4
    WNW
    3
    WNW
    3
    W
    4
    WSW
    7
    WSW
    9
    SW
    10
    SW
    12
    SW
    14
    SW
    16
    SW
    17
    SW
    19
    SW
    22
    SW
    23
    SW
    22
    WSW
    20
    WSW
    19
    W
    18
    W
    18
    W
    19
    W
    20
    W
    20
    W
    20
    Wind gust (mph)
    9
    9
    11
    13
    14
    15
    18
    21
    24
    27
    31
    35
    37
    39
    38
    35
    34
    33
    32
    33
    34
    35
    35
    34
    Visibility (description)
    VG
    VG
    VG
    G
    G
    G
    VG
    VG
    VG
    VG
    VG
    G
    G
    M
    M
    M
    M
    G
    G
    G
    G
    G
    G
    G
    Humidity
    84%
    85%
    85%
    87%
    87%
    84%
    79%
    75%
    71%
    68%
    70%
    73%
    76%
    82%
    87%
    92%
    86%
    81%
    73%
    70%
    70%
    71%
    71%
    72%
    UV - - - - - - 1 1 1 1 2 2 2 1 1 1 1 1 1 - - - - -
    Wind direction and speed (mph)
    4
    4
    3
    3
    4
    7
    9
    10
    12
    14
    15
    17
    19
    21
    22
    22
    20
    19
    18
    18
    19
    20
    20
    20
    Height of waves offshore (m)
    0.0
    0.0
    0.0
    0.0
    0.0
    0.0
    0.0
    0.0
    0.0
    0.1
    0.1
    0.3
    0.3
    0.4
    0.4
    0.3
    0.3
    0.3
    0.3
    0.2
    0.3
    0.3
    0.3
    0.3
    Period of waves offshore (s)
    15
    15
    15
    15
    15
    14
    14
    14
    14
    14
    2
    2
    2
    2
    2
    2
    2
    2
    2
    5
    2
    2
    2
    2
    Direction of waves offshore
    Monday (16 March 2026)
    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 Clear night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Cloudy Cloudy Overcast Overcast Overcast Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Overcast Overcast
    Chance of precipitation
    20%
    10%
    10%
    20%
    30%
    30%
    20%
    30%
    10%
    10%
    20%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    10°
    10°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    10°
    10°
    10°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    W
    19
    W
    18
    W
    17
    W
    16
    W
    16
    W
    16
    W
    16
    W
    16
    WSW
    16
    WSW
    16
    WSW
    16
    WSW
    16
    WSW
    16
    WSW
    17
    WSW
    18
    WSW
    18
    SW
    18
    SW
    17
    SW
    16
    SW
    16
    SW
    16
    SW
    15
    SW
    15
    SW
    14
    Wind gust (mph)
    33
    31
    29
    28
    28
    28
    28
    28
    28
    28
    27
    27
    28
    28
    28
    28
    28
    27
    26
    27
    27
    26
    26
    25
    Visibility (description)
    G
    G
    G
    VG
    VG
    G
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    Humidity
    71%
    73%
    74%
    74%
    75%
    75%
    77%
    76%
    75%
    75%
    73%
    72%
    72%
    74%
    76%
    77%
    81%
    83%
    85%
    85%
    85%
    85%
    85%
    85%
    UV - - - - - - 1 1 1 1 2 2 2 2 1 1 1 1 1 - - - - -
    Wind direction and speed (mph)
    19
    18
    17
    17
    16
    16
    15
    16
    16
    16
    16
    16
    16
    17
    18
    18
    18
    17
    16
    16
    15
    15
    15
    15
    Height of waves offshore (m)
    0.3
    0.2
    0.2
    0.2
    0.3
    0.3
    0.3
    0.2
    0.2
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.2
    0.2
    0.3
    0.3
    Period of waves offshore (s)
    2
    2
    2
    2
    2
    2
    2
    2
    20
    20
    20
    20
    20
    2
    2
    2
    19
    18
    18
    18
    18
    18
    17
    17
    Direction of waves offshore
    Tuesday (17 March 2026)
    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 Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Cloudy Sunny intervals Sunny intervals Partly cloudy night Clear night Clear night Clear night Clear night Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    10°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SW
    14
    SW
    14
    SW
    14
    SSW
    14
    SSW
    14
    SSW
    14
    SSW
    14
    SSW
    14
    SSW
    14
    SSW
    14
    SSW
    15
    SSW
    15
    SSW
    14
    S
    14
    S
    13
    S
    12
    S
    11
    SSE
    9
    SE
    8
    SE
    8
    SE
    8
    ESE
    9
    ESE
    9
    ESE
    8
    Wind gust (mph)
    25
    26
    26
    26
    27
    26
    26
    26
    26
    26
    26
    25
    25
    23
    22
    20
    18
    16
    15
    16
    16
    17
    17
    17
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    VG
    VG
    VG
    VG
    G
    VG
    VG
    VG
    G
    G
    G
    G
    G
    M
    Humidity
    86%
    87%
    87%
    86%
    86%
    87%
    86%
    85%
    84%
    84%
    83%
    81%
    81%
    81%
    81%
    82%
    83%
    84%
    87%
    88%
    86%
    88%
    89%
    90%
    UV - - - - - - 1 1 1 1 2 2 2 2 2 1 1 1 1 - - - - -
    Wind direction and speed (mph)
    14
    14
    14
    14
    14
    14
    14
    14
    14
    14
    15
    15
    14
    14
    13
    12
    11
    9
    8
    8
    8
    9
    9
    9
    Height of waves offshore (m)
    0.3
    1.2
    1.2
    1.2
    1.3
    1.3
    1.4
    1.4
    1.4
    1.4
    1.3
    1.3
    1.3
    1.3
    1.2
    1.2
    1.2
    1.1
    1.0
    1.0
    0.9
    0.9
    0.8
    0.8
    Period of waves offshore (s)
    5
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    7
    7
    7
    7
    7
    7
    Direction of waves offshore
    Wednesday (18 March 2026)
    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 Clear night Clear night Clear night Clear night Clear night Clear night Clear night Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Clear night Clear night Clear night Clear night Clear night Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    10°
    12°
    13°
    13°
    14°
    14°
    14°
    13°
    13°
    12°
    11°
    11°
    10°
    10°
    10°
    Feels like temperature (°C)
    10°
    10°
    10°
    11°
    11°
    11°
    10°
    Wind direction and speed (mph)
    ESE
    8
    ESE
    7
    E
    7
    E
    7
    E
    8
    ENE
    8
    ENE
    9
    ENE
    10
    ENE
    11
    E
    13
    E
    14
    E
    15
    E
    16
    E
    16
    E
    16
    E
    15
    E
    14
    E
    13
    E
    13
    ENE
    13
    ENE
    13
    ENE
    13
    ENE
    12
    ENE
    11
    Wind gust (mph)
    15
    15
    15
    15
    16
    17
    18
    20
    22
    23
    23
    24
    26
    26
    26
    26
    25
    25
    24
    25
    25
    24
    23
    22
    Visibility (description)
    M
    M
    M
    M
    M
    M
    M
    M
    G
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    Humidity
    91%
    92%
    93%
    93%
    93%
    93%
    93%
    92%
    86%
    80%
    73%
    67%
    64%
    61%
    58%
    58%
    58%
    61%
    64%
    65%
    65%
    66%
    70%
    73%
    UV - - - - - - 1 1 1 1 2 3 3 2 2 1 1 1 1 - - - - -
    Wind direction and speed (mph)
    8
    8
    8
    8
    8
    8
    9
    10
    11
    13
    14
    15
    16
    16
    16
    15
    14
    13
    12
    12
    12
    12
    11
    11
    Height of waves offshore (m)
    0.7
    0.7
    0.7
    0.7
    0.7
    0.7
    0.6
    0.6
    0.6
    0.6
    0.7
    0.7
    0.8
    0.8
    0.8
    0.8
    0.8
    0.8
    0.8
    0.8
    0.7
    0.7
    0.7
    0.6
    Period of waves offshore (s)
    7
    7
    7
    7
    7
    7
    7
    7
    7
    17
    17
    17
    17
    17
    17
    17
    17
    17
    17
    16
    16
    16
    16
    16
    Direction of waves offshore
    Thursday (19 March 2026)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Clear night Clear night Sunny day Sunny day Sunny day Sunny day Clear night Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    10°
    14°
    15°
    11°
    Feels like temperature (°C)
    12°
    13°
    10°
    Wind direction and speed (mph)
    ENE
    11
    ENE
    9
    ENE
    8
    ENE
    10
    E
    11
    E
    10
    E
    6
    ENE
    6
    Wind gust (mph)
    19
    16
    18
    21
    21
    18
    11
    11
    Visibility (description)
    G
    G
    G
    G
    VG
    VG
    G
    G
    Humidity
    74%
    78%
    81%
    67%
    53%
    44%
    68%
    78%
    UV - - 1 1 3 1 1 -
    Wind direction and speed (mph)
    10
    9
    8
    9
    10
    9
    6
    6
    Height of waves offshore (m)
    0.6
    0.5
    0.5
    0.5
    0.4
    0.4
    0.3
    0.4
    Period of waves offshore (s)
    15
    15
    15
    14
    14
    14
    14
    14
    Direction of waves offshore
    Friday (20 March 2026)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Clear night Clear night Sunny day Sunny day Sunny day Sunny day Clear night Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    12°
    13°
    10°
    Feels like temperature (°C)
    10°
    11°
    Wind direction and speed (mph)
    NE
    6
    NE
    7
    NE
    8
    ENE
    10
    ENE
    10
    ENE
    9
    ENE
    8
    NE
    9
    Wind gust (mph)
    13
    14
    19
    20
    20
    19
    17
    18
    Visibility (description)
    G
    G
    G
    G
    VG
    VG
    G
    G
    Humidity
    80%
    84%
    86%
    77%
    59%
    54%
    65%
    74%
    UV - - 1 1 3 1 1 -
    Wind direction and speed (mph)
    6
    Height of waves offshore (m)
    0.4
    Period of waves offshore (s)
    7
    Direction of waves offshore

    Tide times

    Saturday 14 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 14 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 14 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 14 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 15 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 15 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 15 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 15 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 16 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 16 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 16 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 16 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 17 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 17 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 17 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 17 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 18 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 18 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 18 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 18 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 19 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 19 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 19 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 19 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 20 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 20 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 20 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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 20 March

    Tide times and heights are from Chesil Cove tidal station which is 1.9 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

    Portland Harbour - Sandsfoot Castle (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:

    Rain clearing Sunday with sunny spells and blustery showers following.

    This Evening and Tonight:

    A few showers possible this evening but largely dry and turning chilly. Cloud building from the west overnight with patchy rain arriving across the far west of Cornwall by dawn. Strengthening southwesterly winds. Minimum temperature 3 °C.

    Sunday:

    Cloudy with outbreaks of rain pushing eastwards through the morning. Blustery showers following from the west, these locally heavy. Feeling rather chilly in the wind. Maximum temperature 12 °C.

    Outlook for Monday to Wednesday:

    Dry for most of Monday with some rain later. Often cloudy on Tuesday with some drizzle possible. Feeling warmer on Wednesday with plenty of spring sunshine. Breezy at times.

    Updated:

    UK long range weather forecast

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