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

Light rain changing to partly cloudy by nighttime.
Beach safety today
Use caution in the sea. Waves can be bigger or stronger than you expect, strong rips likely, the wind may blow you off course
  • • unsafe for novice surfers
  • • paddle boarding not recommended for beginners/intermediate

Tide: Next low tide (0.8m) at

Sunrise iconSunrise:
Sunset iconSunset:
M UV
L Pollution

    7 day forecast for Porth Swtan / Church Bay

    Saturday (16 May 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 Partly cloudy night Partly cloudy night Partly cloudy night Cloudy Cloudy Cloudy Cloudy Overcast Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light shower day Light shower day Light shower night Partly cloudy night Partly cloudy night
    Chance of precipitation
    20%
    20%
    10%
    20%
    20%
    30%
    30%
    30%
    60%
    80%
    90%
    90%
    90%
    70%
    70%
    80%
    90%
    90%
    70%
    50%
    60%
    60%
    50%
    40%
    Temperature
    10°
    10°
    10°
    10°
    11°
    11°
    12°
    12°
    12°
    12°
    12°
    11°
    11°
    10°
    10°
    Feels like temperature (°C)
    10°
    10°
    10°
    10°
    10°
    Wind direction and speed
    W
    5
    W
    5
    W
    5
    WSW
    4
    WSW
    4
    WSW
    4
    SW
    4
    SW
    3
    SW
    4
    SSW
    5
    SW
    6
    SW
    8
    SW
    9
    SW
    10
    SW
    10
    SW
    11
    SW
    11
    SW
    11
    WSW
    10
    WSW
    9
    WSW
    9
    W
    9
    W
    10
    W
    11
    Wind gust (mph)
    12
    12
    12
    11
    10
    10
    10
    11
    11
    13
    15
    17
    18
    19
    20
    21
    22
    22
    21
    20
    22
    23
    26
    28
    Visibility
    G
    G
    G
    G
    G
    G
    G
    G
    VG
    G
    M
    G
    M
    G
    M
    G
    M
    M
    M
    M
    M
    M
    G
    G
    Humidity
    84%
    86%
    85%
    85%
    84%
    84%
    83%
    81%
    76%
    77%
    78%
    81%
    85%
    88%
    87%
    85%
    87%
    91%
    90%
    88%
    88%
    87%
    83%
    83%
    UV - - - - - 1 1 1 1 2 2 3 4 3 3 2 2 1 1 1 1 1 - -
    Wind direction and speed
    5
    5
    4
    4
    4
    4
    4
    3
    3
    5
    6
    8
    9
    10
    10
    11
    11
    11
    10
    9
    9
    9
    10
    12
    Height of waves offshore (m)
    0.2
    0.3
    0.3
    0.3
    0.4
    0.3
    0.3
    0.3
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.3
    0.3
    0.4
    0.5
    0.5
    0.5
    0.5
    0.6
    0.6
    Period of waves offshore (s)
    5
    5
    5
    5
    5
    5
    5
    5
    4
    4
    4
    4
    4
    4
    4
    2
    3
    3
    4
    4
    5
    5
    5
    4
    Direction of waves offshore
    Sunday (17 May 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 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 Cloudy 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
    Chance of precipitation
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    10%
    10%
    10%
    10%
    10%
    20%
    20%
    50%
    60%
    80%
    80%
    90%
    90%
    80%
    70%
    70%
    70%
    60%
    Temperature (°C)
    10°
    10°
    11°
    11°
    11°
    12°
    12°
    12°
    11°
    11°
    11°
    10°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    W
    12
    W
    13
    W
    13
    W
    13
    W
    13
    W
    13
    W
    13
    W
    13
    WSW
    13
    WSW
    13
    WSW
    13
    SW
    14
    SW
    14
    SW
    15
    SW
    15
    SW
    15
    SW
    15
    SW
    14
    SW
    13
    SW
    12
    SW
    11
    SW
    10
    SW
    9
    SW
    8
    Wind gust (mph)
    28
    29
    29
    28
    28
    28
    27
    26
    26
    26
    26
    28
    29
    30
    32
    32
    32
    30
    26
    26
    25
    23
    22
    20
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    M
    G
    G
    M
    M
    M
    Humidity
    81%
    80%
    81%
    79%
    78%
    79%
    78%
    75%
    74%
    70%
    67%
    65%
    65%
    65%
    67%
    68%
    79%
    81%
    82%
    85%
    85%
    88%
    90%
    91%
    UV - - - - - 1 1 1 1 3 4 5 5 5 4 2 3 2 1 1 1 1 - -
    Wind direction and speed (mph)
    13
    13
    14
    14
    13
    13
    13
    13
    13
    13
    13
    14
    14
    14
    15
    15
    15
    14
    13
    11
    10
    9
    9
    8
    Height of waves offshore (m)
    0.6
    0.8
    0.9
    1.0
    1.0
    1.0
    1.0
    1.0
    1.0
    0.9
    0.9
    0.8
    0.8
    0.8
    0.8
    0.8
    0.8
    0.7
    0.7
    0.7
    0.7
    0.8
    0.8
    0.8
    Period of waves offshore (s)
    4
    4
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    6
    6
    6
    7
    Direction of waves offshore
    Monday (18 May 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 Light shower night Light shower night Light shower night Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Cloudy Cloudy Cloudy Cloudy Cloudy Light rain Light rain Light rain Light rain Light rain Light rain
    Chance of precipitation
    60%
    60%
    50%
    40%
    30%
    20%
    20%
    20%
    10%
    10%
    20%
    20%
    30%
    30%
    30%
    30%
    30%
    40%
    50%
    70%
    80%
    80%
    80%
    80%
    Temperature (°C)
    10°
    11°
    11°
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    11°
    11°
    11°
    Feels like temperature (°C)
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    Wind direction and speed (mph)
    SW
    8
    WSW
    8
    W
    8
    W
    7
    W
    7
    W
    6
    WSW
    6
    WSW
    6
    SW
    6
    SW
    7
    SW
    8
    SW
    9
    SW
    10
    SW
    11
    SSW
    11
    SSW
    12
    SSW
    12
    S
    12
    S
    12
    S
    12
    SSE
    13
    SSE
    14
    SSE
    15
    SSE
    16
    Wind gust (mph)
    19
    19
    19
    18
    17
    16
    14
    14
    15
    15
    16
    17
    19
    20
    22
    22
    23
    22
    24
    27
    30
    32
    34
    35
    Visibility (description)
    M
    G
    G
    G
    G
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    M
    M
    M
    P
    P
    P
    Humidity
    91%
    90%
    90%
    89%
    90%
    89%
    89%
    85%
    78%
    75%
    70%
    67%
    67%
    65%
    66%
    68%
    71%
    73%
    78%
    81%
    85%
    90%
    91%
    92%
    UV - - - - - 1 1 1 2 3 4 5 5 6 5 4 3 2 1 1 1 1 - -
    Wind direction and speed (mph)
    8
    7
    7
    7
    6
    6
    6
    6
    6
    7
    8
    8
    10
    11
    11
    12
    12
    12
    12
    12
    12
    12
    13
    15
    Height of waves offshore (m)
    0.8
    0.7
    0.6
    0.6
    0.6
    0.5
    0.5
    0.5
    0.5
    0.5
    0.4
    0.4
    0.4
    0.4
    0.4
    0.4
    0.4
    0.5
    0.5
    0.5
    0.5
    0.5
    0.6
    0.6
    Period of waves offshore (s)
    7
    7
    4
    4
    4
    4
    4
    4
    4
    4
    4
    4
    4
    4
    3
    3
    4
    4
    5
    5
    6
    6
    6
    6
    Direction of waves offshore
    Tuesday (19 May 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 Heavy rain Heavy rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Cloudy Cloudy Cloudy Cloudy Cloudy
    Chance of precipitation
    80%
    90%
    90%
    90%
    80%
    70%
    80%
    70%
    70%
    60%
    60%
    60%
    40%
    30%
    20%
    20%
    20%
    30%
    30%
    30%
    30%
    40%
    40%
    30%
    Temperature (°C)
    11°
    11°
    11°
    11°
    12°
    12°
    12°
    11°
    12°
    12°
    13°
    13°
    13°
    14°
    14°
    14°
    14°
    14°
    13°
    13°
    13°
    13°
    12°
    12°
    Feels like temperature (°C)
    10°
    10°
    10°
    11°
    11°
    11°
    11°
    10°
    10°
    10°
    10°
    10°
    Wind direction and speed (mph)
    SSE
    17
    SSE
    18
    S
    18
    S
    18
    S
    18
    S
    18
    S
    18
    S
    18
    S
    18
    S
    18
    SSW
    18
    SSW
    19
    SSW
    19
    SSW
    19
    SSW
    19
    SSW
    20
    SSW
    20
    SSW
    20
    SSW
    20
    SSW
    19
    SSW
    19
    SSW
    18
    SSW
    18
    SSW
    18
    Wind gust (mph)
    35
    35
    35
    36
    35
    34
    34
    34
    34
    34
    34
    34
    34
    34
    34
    35
    36
    36
    37
    37
    36
    36
    35
    35
    Visibility (description)
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    M
    M
    M
    M
    M
    M
    M
    M
    P
    P
    P
    Humidity
    92%
    92%
    92%
    93%
    95%
    95%
    95%
    95%
    94%
    93%
    92%
    92%
    90%
    86%
    83%
    84%
    83%
    84%
    84%
    85%
    87%
    88%
    92%
    92%
    UV - - - - - 1 1 1 1 2 2 3 4 5 5 4 3 2 1 1 1 1 - -
    Wind direction and speed (mph)
    16
    17
    18
    18
    18
    18
    18
    18
    18
    18
    18
    18
    18
    18
    19
    19
    20
    20
    19
    19
    18
    17
    16
    16
    Height of waves offshore (m)
    0.7
    0.8
    0.9
    0.9
    1.0
    0.9
    0.9
    0.8
    0.8
    0.8
    0.8
    0.9
    1.0
    1.1
    1.2
    1.3
    1.4
    1.4
    1.4
    1.4
    1.4
    1.3
    1.3
    1.3
    Period of waves offshore (s)
    6
    7
    7
    8
    8
    8
    8
    8
    8
    8
    8
    7
    7
    7
    7
    7
    8
    8
    8
    8
    8
    8
    8
    8
    Direction of waves offshore
    Wednesday (20 May 2026)
    Time
    00:00
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Cloudy Cloudy Cloudy Cloudy Sunny intervals Sunny intervals Sunny intervals Cloudy Overcast
    Chance of precipitation
    40%
    40%
    40%
    30%
    20%
    10%
    10%
    10%
    20%
    Temperature (°C)
    12°
    12°
    12°
    12°
    14°
    15°
    16°
    15°
    13°
    Feels like temperature (°C)
    11°
    12°
    13°
    12°
    11°
    Wind direction and speed (mph)
    SSW
    17
    SSW
    17
    SSW
    16
    SSW
    16
    SSW
    17
    SSW
    18
    SSW
    18
    SSW
    15
    S
    13
    Wind gust (mph)
    34
    32
    34
    33
    34
    34
    32
    28
    25
    Visibility (description)
    P
    P
    M
    M
    M
    M
    G
    G
    M
    Humidity
    92%
    93%
    93%
    92%
    89%
    81%
    77%
    82%
    91%
    UV - - - 1 3 6 3 1 -
    Wind direction and speed (mph)
    16
    15
    15
    16
    16
    17
    17
    14
    13
    Height of waves offshore (m)
    1.2
    1.2
    1.1
    1.1
    1.2
    1.2
    1.0
    1.0
    0.9
    Period of waves offshore (s)
    8
    8
    8
    7
    7
    7
    7
    7
    7
    Direction of waves offshore
    Thursday (21 May 2026)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Overcast Overcast Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night
    Chance of precipitation
    20%
    30%
    20%
    20%
    10%
    10%
    10%
    10%
    Temperature (°C)
    13°
    13°
    13°
    16°
    18°
    19°
    18°
    15°
    Feels like temperature (°C)
    10°
    10°
    11°
    14°
    15°
    16°
    17°
    14°
    Wind direction and speed (mph)
    S
    13
    S
    13
    S
    12
    S
    14
    S
    15
    S
    14
    S
    11
    S
    8
    Wind gust (mph)
    25
    25
    27
    30
    31
    29
    21
    17
    Visibility (description)
    M
    M
    M
    M
    G
    VG
    G
    G
    Humidity
    91%
    92%
    90%
    82%
    73%
    67%
    72%
    84%
    UV - - 1 3 5 3 1 -
    Wind direction and speed (mph)
    12
    Height of waves offshore (m)
    0.8
    Period of waves offshore (s)
    7
    Direction of waves offshore
    Friday (22 May 2026)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Partly cloudy night Cloudy Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night
    Chance of precipitation
    10%
    10%
    10%
    10%
    20%
    20%
    20%
    20%
    Temperature (°C)
    13°
    13°
    14°
    18°
    19°
    20°
    18°
    15°
    Feels like temperature (°C)
    12°
    12°
    13°
    16°
    18°
    18°
    17°
    14°
    Wind direction and speed (mph)
    S
    8
    SSE
    8
    S
    8
    S
    11
    S
    11
    S
    11
    S
    9
    S
    8
    Wind gust (mph)
    16
    16
    22
    25
    24
    22
    18
    15
    Visibility (description)
    M
    M
    M
    G
    VG
    G
    G
    M
    Humidity
    90%
    88%
    85%
    80%
    73%
    71%
    78%
    92%
    UV - - 1 3 5 3 1 -
    Wind direction and speed (mph)
    Height of waves offshore (m)
    Period of waves offshore (s)
    Direction of waves offshore

    Tide times

    Saturday 16 May

    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 16 May

    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 16 May

    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 16 May

    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 17 May

    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 17 May

    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 17 May

    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 17 May

    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 18 May

    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 18 May

    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 18 May

    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 18 May

    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 19 May

    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 19 May

    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 19 May

    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 19 May

    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 20 May

    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 20 May

    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 20 May

    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 20 May

    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 21 May

    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 21 May

    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 21 May

    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 21 May

    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 22 May

    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 22 May

    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 22 May

    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 22 May

    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.

    UK video forecast

    Porth Swtan / Church Bay weather map

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    Wales weather forecast

    Headline:

    Drier, brighter and feeling a little less chilly.

    This Evening and Tonight:

    The odd light coastal shower is possible overnight. Otherwise, dry with clear spells and light winds. This will allow temperatures to fall away and a patchy frost to form. Minimum temperature 4 °C.

    Saturday:

    A dry, bright and chilly start. Remaining mostly dry with cloud increasing from the west. Some light rain is possible in the west by evening. Maximum temperature 13 °C.

    Outlook for Sunday to Tuesday:

    Some showers possible on Sunday. Cloudy on Monday with some rain. This turning heavy overnight. Rather wet and windy on Tuesday. Temperatures slowly increasing near to average.

    Updated:

    UK long range weather forecast

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