Porth Swtan / Church Bay (Isle of Anglesey) 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

Partly cloudy.
Beach safety today
Large, powerful waves
  • • only experts should take part in water activities

Tide: Next low tide (0.9m) at

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

    7 day forecast for Porth Swtan / Church Bay

    Today (4 December 2025)
    Time
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    30%
    20%
    10%
    10%
    10%
    20%
    10%
    20%
    40%
    Temperature
    Feels like temperature (°C)
    Wind direction and speed
    WNW
    12
    WNW
    11
    W
    10
    W
    11
    W
    10
    WSW
    10
    WSW
    10
    SW
    11
    SW
    11
    Wind gust (mph)
    25
    23
    22
    21
    21
    23
    23
    23
    23
    Visibility
    VG
    E
    E
    E
    E
    E
    E
    E
    E
    Humidity
    74%
    73%
    75%
    75%
    76%
    76%
    77%
    77%
    80%
    UV 1 1 - - - - - - -
    Wind direction and speed
    12
    12
    11
    11
    10
    11
    10
    11
    11
    Height of waves offshore (m)
    1.3
    1.3
    1.2
    1.2
    1.1
    1.1
    1.0
    0.9
    0.9
    Period of waves offshore (s)
    5
    5
    5
    5
    5
    5
    5
    5
    5
    Direction of waves offshore
    Friday (5 December 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 Partly cloudy night Cloudy Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Cloudy Cloudy Cloudy Cloudy Cloudy Light rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy shower night Heavy shower night Light shower night Light shower night Light shower night
    Chance of precipitation
    30%
    30%
    40%
    20%
    20%
    10%
    40%
    40%
    50%
    40%
    30%
    40%
    70%
    90%
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    90%
    70%
    60%
    70%
    70%
    Temperature (°C)
    10°
    10°
    11°
    11°
    11°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SW
    12
    SW
    11
    SW
    11
    SW
    11
    SW
    10
    SW
    10
    SSW
    9
    S
    10
    SSE
    11
    SSE
    13
    SSE
    16
    SSE
    18
    SSE
    20
    SSE
    22
    SSE
    22
    SSE
    23
    SSE
    24
    SSE
    24
    SSE
    22
    SSE
    19
    S
    16
    SSW
    14
    SSW
    14
    SSW
    14
    Wind gust (mph)
    23
    23
    23
    23
    21
    22
    23
    25
    29
    34
    39
    43
    47
    52
    52
    53
    58
    57
    49
    42
    38
    35
    35
    34
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    G
    M
    M
    M
    M
    VG
    G
    E
    E
    E
    E
    Humidity
    81%
    83%
    84%
    85%
    84%
    84%
    84%
    86%
    88%
    87%
    86%
    85%
    83%
    82%
    86%
    87%
    87%
    87%
    89%
    92%
    92%
    88%
    87%
    89%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    11
    11
    11
    11
    10
    10
    9
    10
    11
    13
    16
    18
    20
    21
    22
    23
    24
    24
    22
    19
    16
    14
    14
    14
    Height of waves offshore (m)
    0.9
    0.8
    0.7
    0.7
    0.7
    0.6
    0.7
    0.7
    0.8
    0.8
    0.8
    0.8
    0.8
    0.8
    0.8
    0.8
    0.8
    1.0
    1.2
    1.4
    1.6
    1.6
    1.5
    1.4
    Period of waves offshore (s)
    5
    5
    5
    5
    5
    5
    5
    5
    10
    9
    9
    9
    6
    7
    8
    9
    9
    10
    10
    10
    10
    10
    9
    9
    Direction of waves offshore
    Saturday (6 December 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 Heavy shower night Heavy shower night Light shower night Light shower night Partly cloudy night Partly cloudy night Cloudy Cloudy Cloudy Cloudy Sunny intervals Cloudy Sunny intervals Cloudy Cloudy Cloudy Cloudy Light shower night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    70%
    80%
    80%
    70%
    60%
    50%
    40%
    40%
    30%
    40%
    40%
    40%
    40%
    40%
    40%
    40%
    40%
    50%
    50%
    40%
    30%
    20%
    20%
    10%
    Temperature (°C)
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    12°
    12°
    12°
    12°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    S
    13
    S
    13
    S
    14
    S
    14
    SSW
    14
    SSW
    13
    SW
    12
    SW
    11
    SW
    11
    SW
    10
    SW
    10
    SW
    11
    WSW
    11
    WSW
    11
    WSW
    11
    WSW
    11
    WSW
    11
    WSW
    11
    WSW
    11
    WSW
    12
    WSW
    12
    WSW
    11
    WSW
    11
    WSW
    11
    Wind gust (mph)
    33
    33
    33
    31
    28
    26
    24
    23
    23
    22
    22
    20
    21
    21
    21
    22
    23
    23
    24
    23
    23
    23
    24
    23
    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
    89%
    91%
    91%
    91%
    91%
    90%
    89%
    89%
    89%
    88%
    88%
    86%
    86%
    86%
    86%
    88%
    90%
    90%
    90%
    91%
    89%
    88%
    88%
    89%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 - - - - - - - -
    Wind direction and speed (mph)
    13
    14
    14
    14
    14
    13
    12
    11
    11
    10
    11
    11
    11
    11
    11
    11
    11
    11
    11
    12
    12
    11
    11
    11
    Height of waves offshore (m)
    1.3
    1.2
    1.0
    0.8
    0.7
    0.8
    0.9
    1.1
    1.3
    1.4
    1.4
    1.3
    1.2
    1.1
    1.0
    0.9
    0.8
    0.9
    1.0
    0.9
    1.0
    1.0
    1.0
    1.0
    Period of waves offshore (s)
    9
    9
    9
    10
    10
    11
    11
    11
    11
    12
    12
    12
    12
    16
    16
    17
    17
    17
    17
    16
    16
    16
    16
    16
    Direction of waves offshore
    Sunday (7 December 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 Partly cloudy night Cloudy Cloudy Overcast Light rain Light rain Light rain Light rain Light rain Overcast Overcast Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    10%
    10%
    20%
    40%
    60%
    80%
    80%
    70%
    50%
    30%
    30%
    30%
    20%
    20%
    10%
    10%
    <5%
    10%
    10%
    20%
    20%
    30%
    40%
    40%
    Temperature (°C)
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    12°
    12°
    12°
    12°
    12°
    11°
    11°
    10°
    10°
    10°
    10°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    WSW
    10
    SW
    9
    SW
    9
    SSW
    9
    SSW
    9
    S
    10
    S
    11
    S
    12
    S
    13
    S
    13
    SSW
    13
    SW
    14
    SW
    15
    WSW
    16
    WSW
    15
    WSW
    14
    WSW
    13
    WSW
    12
    WSW
    11
    SW
    11
    SW
    11
    SW
    11
    SW
    11
    SW
    11
    Wind gust (mph)
    21
    23
    20
    20
    20
    21
    21
    21
    24
    24
    24
    25
    25
    26
    24
    22
    21
    19
    19
    20
    21
    21
    22
    20
    Visibility (description)
    E
    E
    E
    E
    E
    G
    G
    G
    G
    VG
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    Humidity
    90%
    91%
    90%
    91%
    92%
    93%
    95%
    96%
    96%
    95%
    93%
    91%
    87%
    83%
    79%
    81%
    82%
    83%
    82%
    84%
    84%
    82%
    83%
    84%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 - - - - - - - -
    Wind direction and speed (mph)
    10
    9
    9
    9
    9
    10
    11
    12
    13
    13
    14
    14
    15
    15
    15
    14
    13
    12
    11
    11
    11
    11
    11
    11
    Height of waves offshore (m)
    1.0
    0.9
    0.9
    0.8
    0.8
    0.7
    0.6
    0.6
    0.7
    1.0
    1.3
    1.5
    1.5
    1.5
    1.4
    1.4
    1.3
    1.1
    1.0
    0.9
    0.8
    0.8
    0.7
    0.7
    Period of waves offshore (s)
    16
    13
    11
    11
    11
    11
    10
    10
    10
    4
    5
    6
    6
    6
    6
    6
    6
    5
    5
    5
    5
    8
    11
    11
    Direction of waves offshore
    Monday (8 December 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 Partly cloudy night Partly cloudy 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 Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Cloudy Cloudy Cloudy Light rain Heavy rain
    Chance of precipitation
    40%
    40%
    40%
    40%
    30%
    40%
    40%
    30%
    30%
    30%
    20%
    20%
    10%
    20%
    20%
    20%
    20%
    30%
    20%
    20%
    30%
    40%
    60%
    60%
    Temperature (°C)
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    11°
    11°
    12°
    12°
    12°
    12°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    12°
    Feels like temperature (°C)
    10°
    Wind direction and speed (mph)
    SW
    11
    SSW
    11
    SSW
    11
    SSW
    11
    SSW
    12
    SSW
    12
    SSW
    13
    SSW
    13
    SW
    12
    SW
    12
    SW
    13
    SW
    14
    SW
    14
    SW
    13
    SW
    13
    SSW
    12
    SSW
    12
    S
    12
    S
    13
    S
    14
    S
    14
    S
    15
    SSE
    16
    SSE
    17
    Wind gust (mph)
    19
    20
    20
    20
    18
    19
    20
    22
    21
    24
    24
    24
    24
    23
    24
    24
    24
    25
    26
    26
    26
    29
    33
    34
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    E
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    Humidity
    86%
    87%
    87%
    90%
    90%
    89%
    89%
    89%
    89%
    88%
    87%
    86%
    84%
    85%
    85%
    87%
    90%
    91%
    92%
    92%
    91%
    91%
    91%
    92%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 - - - - - - - -
    Wind direction and speed (mph)
    11
    12
    11
    11
    12
    12
    13
    13
    12
    12
    13
    14
    14
    13
    13
    12
    12
    12
    13
    13
    14
    15
    16
    17
    Height of waves offshore (m)
    0.7
    0.7
    0.8
    0.8
    0.9
    0.9
    1.0
    1.1
    1.1
    1.1
    1.0
    1.0
    1.0
    1.0
    0.9
    0.9
    0.8
    0.8
    0.8
    0.8
    0.8
    0.8
    0.8
    0.9
    Period of waves offshore (s)
    11
    11
    11
    6
    6
    7
    7
    8
    8
    8
    8
    8
    7
    7
    8
    9
    10
    10
    10
    10
    10
    10
    10
    7
    Direction of waves offshore
    Tuesday (9 December 2025)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Light rain Light rain Light rain Cloudy Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    80%
    70%
    50%
    40%
    30%
    20%
    30%
    30%
    Temperature (°C)
    12°
    13°
    13°
    13°
    13°
    13°
    12°
    12°
    Feels like temperature (°C)
    10°
    10°
    10°
    Wind direction and speed (mph)
    SSE
    18
    SSE
    21
    S
    22
    S
    21
    SSW
    20
    SSW
    18
    SSW
    17
    SSW
    16
    Wind gust (mph)
    34
    40
    42
    38
    36
    30
    32
    29
    Visibility (description)
    G
    M
    G
    G
    G
    VG
    VG
    G
    Humidity
    91%
    91%
    90%
    89%
    86%
    84%
    87%
    87%
    UV - - - 1 1 1 - -
    Wind direction and speed (mph)
    18
    20
    21
    21
    20
    18
    18
    17
    Height of waves offshore (m)
    1.0
    1.7
    1.5
    1.5
    1.4
    Period of waves offshore (s)
    4
    9
    9
    8
    8
    Direction of waves offshore
    Wednesday (10 December 2025)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Partly cloudy night Cloudy Cloudy
    Chance of precipitation
    30%
    30%
    30%
    30%
    20%
    20%
    30%
    50%
    Temperature (°C)
    12°
    11°
    11°
    11°
    12°
    11°
    11°
    11°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SSW
    15
    SSW
    15
    SSW
    14
    SSW
    13
    SW
    15
    SW
    13
    SSW
    13
    SSW
    13
    Wind gust (mph)
    27
    26
    25
    28
    28
    25
    27
    29
    Visibility (description)
    VG
    G
    G
    VG
    VG
    VG
    VG
    G
    Humidity
    89%
    89%
    90%
    87%
    83%
    85%
    87%
    87%
    UV - - - 1 1 1 - -
    Wind direction and speed (mph)
    16
    Height of waves offshore (m)
    Period of waves offshore (s)
    Direction of waves offshore

    Tide times

    Thursday 4 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 4 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 4 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 4 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 5 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 5 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 5 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 5 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 6 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 6 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 6 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 6 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 7 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 7 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 7 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 7 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 8 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 8 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 8 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 8 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 9 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 9 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 9 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 9 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 10 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 10 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 10 December

    Tide times and heights are from Holyhead tidal station which is 4.2 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 10 December

    Tide times and heights are from Holyhead tidal station which is 4.2 miles away. So times may be different at this beach. What does this mean?

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

    Porth Swtan / Church Bay weather map

    View the weather with our interactive map

    Loading map...
    WARNING
    Flood warnings icon
    Flood warnings in force for Wales
    Flood warnings in force for Wales

    Wales weather forecast

    Headline:

    Heavy rain clearing. Drier into the afternoon.

    Today:

    Heavy rain clearing eastwards this morning. Turning drier behind with some glimmers of sunshine into the afternoon. Winds easing and feeling colder than previous days. Maximum temperature 9 °C.

    Tonight:

    Remaining largely dry this evening with clear spells to start. Becoming cloudier again overnight with showery rain and a brisker breeze. Minimum temperature -1 °C.

    Friday:

    Often cloudy to start with some patchy rain. A brief drier interlude during the morning before a band of heavy rain sweeps eastwards. Windy with the risk of coastal gales. Maximum temperature 11 °C.

    Outlook for Saturday to Monday:

    Remaining changeable this weekend and into next with showers on Saturday. Unsettled again on Sunday with longer spells of rain, then somewhat drier on Monday. Milder but often breezy.

    Updated:

    UK long range weather forecast

    More from the Met Office