Porth Trwyn (Beach) (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

Sunny intervals changing to partly cloudy by early evening.
Beach safety today
Use caution in the sea. Waves can be bigger or stronger than you expect, strong rips likely, strong wind may blow you off course
  • • unsafe for novice surfers
  • • paddle boarding/kayaking not recommended at any level

Tide: Next low tide (1.0m) at

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

    7 day forecast for Porth Trwyn (Beach)

    Today (23 January 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 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%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature
    Feels like temperature (°C)
    Wind direction and speed
    E
    19
    E
    18
    E
    18
    ENE
    18
    E
    18
    ENE
    18
    E
    18
    E
    17
    E
    16
    Wind gust (mph)
    37
    36
    37
    38
    38
    38
    37
    36
    37
    Visibility
    VG
    VG
    VG
    G
    G
    G
    G
    VG
    G
    Humidity
    85%
    86%
    86%
    86%
    86%
    85%
    85%
    84%
    85%
    UV 1 1 - - - - - - -
    Wind direction and speed
    19
    18
    18
    18
    18
    18
    18
    17
    16
    Height of waves offshore (m)
    0.4
    0.4
    0.4
    0.4
    0.4
    0.5
    0.6
    0.7
    0.8
    Period of waves offshore (s)
    17
    16
    16
    16
    16
    16
    16
    16
    16
    Direction of waves offshore
    Saturday (24 January 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 Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Light rain Cloudy Light rain Light rain
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    10%
    <5%
    10%
    <5%
    10%
    10%
    20%
    20%
    40%
    30%
    40%
    50%
    50%
    60%
    60%
    Temperature (°C)
    Feels like temperature (°C)
    Wind direction and speed (mph)
    E
    16
    E
    17
    E
    18
    E
    18
    E
    19
    E
    19
    E
    19
    E
    19
    E
    19
    E
    19
    E
    18
    E
    18
    E
    19
    E
    19
    E
    19
    E
    19
    E
    20
    E
    21
    E
    21
    E
    21
    E
    21
    E
    21
    ESE
    21
    ESE
    22
    Wind gust (mph)
    37
    39
    40
    40
    41
    40
    40
    41
    41
    40
    41
    41
    40
    40
    40
    41
    42
    43
    43
    44
    45
    46
    45
    46
    Visibility (description)
    VG
    VG
    VG
    G
    VG
    G
    G
    G
    G
    G
    G
    VG
    VG
    VG
    VG
    G
    G
    G
    G
    G
    G
    G
    G
    G
    Humidity
    84%
    84%
    84%
    83%
    83%
    84%
    84%
    84%
    84%
    83%
    81%
    75%
    74%
    73%
    73%
    73%
    73%
    74%
    75%
    76%
    77%
    77%
    78%
    80%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    16
    17
    18
    18
    19
    19
    19
    19
    19
    19
    18
    18
    19
    19
    19
    19
    20
    21
    21
    21
    21
    21
    21
    22
    Height of waves offshore (m)
    0.8
    0.8
    0.7
    0.7
    0.6
    0.5
    0.5
    0.5
    0.5
    0.5
    0.6
    0.6
    0.6
    0.7
    0.6
    0.6
    0.5
    0.5
    0.5
    0.5
    0.5
    0.5
    0.6
    0.7
    Period of waves offshore (s)
    15
    15
    15
    15
    15
    15
    15
    15
    15
    15
    15
    14
    14
    15
    15
    15
    15
    15
    16
    16
    17
    16
    16
    16
    Direction of waves offshore
    Sunday (25 January 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 rain Light rain Light rain Light shower night Light shower night Light shower night Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy 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
    Chance of precipitation
    70%
    80%
    80%
    80%
    70%
    60%
    50%
    30%
    30%
    30%
    30%
    30%
    20%
    30%
    30%
    30%
    20%
    20%
    20%
    20%
    10%
    10%
    <5%
    <5%
    Temperature (°C)
    Feels like temperature (°C)
    Wind direction and speed (mph)
    ESE
    22
    ESE
    21
    ESE
    20
    ESE
    18
    ESE
    16
    ESE
    15
    ESE
    13
    ESE
    13
    E
    13
    E
    12
    E
    13
    E
    13
    E
    14
    E
    13
    E
    13
    E
    13
    E
    13
    E
    13
    E
    12
    E
    12
    E
    11
    E
    10
    E
    10
    E
    9
    Wind gust (mph)
    45
    45
    43
    36
    33
    31
    29
    28
    29
    30
    28
    27
    26
    26
    27
    28
    28
    28
    27
    26
    26
    27
    26
    26
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    82%
    84%
    85%
    85%
    86%
    86%
    87%
    89%
    89%
    89%
    88%
    86%
    85%
    85%
    85%
    86%
    87%
    87%
    87%
    88%
    88%
    88%
    91%
    91%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    22
    21
    20
    18
    16
    15
    13
    13
    13
    12
    13
    13
    14
    13
    13
    13
    13
    13
    12
    12
    11
    10
    10
    9
    Height of waves offshore (m)
    0.8
    0.9
    1.0
    0.9
    0.8
    0.7
    0.5
    0.4
    0.4
    0.4
    0.4
    0.5
    0.6
    0.6
    0.6
    0.6
    0.5
    0.4
    0.3
    0.5
    0.5
    0.5
    0.5
    0.5
    Period of waves offshore (s)
    15
    15
    9
    9
    9
    15
    15
    15
    15
    15
    15
    15
    15
    9
    9
    9
    14
    14
    18
    17
    17
    16
    16
    16
    Direction of waves offshore
    Monday (26 January 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 Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Light rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Light rain Light shower night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    10%
    10%
    10%
    <5%
    <5%
    <5%
    10%
    10%
    10%
    30%
    50%
    70%
    80%
    90%
    90%
    90%
    90%
    90%
    70%
    60%
    Temperature (°C)
    Feels like temperature (°C)
    Wind direction and speed (mph)
    E
    9
    E
    9
    E
    9
    ESE
    9
    ESE
    9
    ESE
    10
    ESE
    10
    ESE
    10
    ESE
    11
    ESE
    12
    ESE
    13
    SE
    14
    SE
    15
    SE
    16
    SE
    16
    SE
    16
    ESE
    16
    ESE
    17
    ESE
    17
    SE
    17
    SE
    18
    SSE
    17
    SSE
    16
    SSE
    14
    Wind gust (mph)
    26
    27
    27
    28
    29
    30
    30
    31
    32
    34
    35
    37
    37
    39
    40
    41
    43
    43
    45
    46
    44
    41
    34
    31
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    G
    M
    G
    G
    G
    G
    G
    Humidity
    91%
    90%
    89%
    88%
    88%
    87%
    86%
    85%
    84%
    84%
    79%
    75%
    74%
    74%
    74%
    76%
    78%
    83%
    84%
    84%
    84%
    86%
    87%
    86%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    9
    9
    9
    9
    9
    10
    10
    10
    11
    12
    13
    14
    15
    16
    16
    16
    16
    17
    17
    17
    18
    17
    16
    14
    Height of waves offshore (m)
    0.5
    0.4
    0.4
    0.4
    0.4
    0.4
    0.4
    0.4
    0.4
    0.5
    0.5
    0.5
    0.5
    0.5
    0.5
    0.5
    0.5
    0.6
    0.7
    0.7
    0.8
    0.9
    0.9
    0.9
    Period of waves offshore (s)
    16
    16
    15
    15
    15
    15
    15
    14
    13
    12
    11
    11
    11
    9
    9
    8
    8
    8
    8
    9
    9
    9
    9
    9
    Direction of waves offshore
    Tuesday (27 January 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 Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain
    Chance of precipitation
    50%
    50%
    40%
    30%
    30%
    30%
    30%
    30%
    40%
    40%
    50%
    50%
    60%
    60%
    60%
    60%
    60%
    60%
    60%
    60%
    60%
    60%
    60%
    60%
    Temperature (°C)
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SSE
    12
    SSE
    10
    SSE
    10
    SE
    9
    SE
    9
    ESE
    9
    ESE
    9
    E
    10
    E
    10
    E
    11
    E
    12
    E
    11
    E
    12
    E
    13
    E
    13
    ENE
    13
    E
    12
    E
    13
    E
    13
    ESE
    14
    E
    14
    E
    14
    E
    13
    ESE
    13
    Wind gust (mph)
    27
    25
    25
    23
    22
    20
    23
    25
    26
    27
    26
    27
    28
    26
    25
    26
    26
    28
    30
    29
    29
    29
    31
    31
    Visibility (description)
    G
    VG
    VG
    VG
    G
    VG
    VG
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    Humidity
    87%
    87%
    90%
    90%
    91%
    90%
    90%
    91%
    90%
    91%
    90%
    88%
    87%
    86%
    85%
    86%
    88%
    90%
    90%
    90%
    91%
    90%
    90%
    90%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    12
    10
    10
    9
    9
    9
    9
    10
    10
    11
    12
    11
    12
    13
    13
    13
    12
    13
    13
    14
    14
    14
    13
    13
    Height of waves offshore (m)
    0.8
    0.7
    0.6
    0.5
    0.5
    0.4
    0.4
    0.5
    0.5
    0.5
    0.6
    0.7
    0.9
    0.9
    1.0
    0.9
    0.9
    0.9
    0.9
    0.9
    1.0
    1.0
    1.2
    1.3
    Period of waves offshore (s)
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    6
    4
    5
    6
    6
    6
    7
    8
    8
    8
    8
    8
    8
    Direction of waves offshore
    Wednesday (28 January 2026)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Partly cloudy night
    Chance of precipitation
    50%
    40%
    40%
    30%
    30%
    30%
    30%
    20%
    Temperature (°C)
    Feels like temperature (°C)
    Wind direction and speed (mph)
    ESE
    13
    SE
    14
    SSE
    13
    SSE
    12
    S
    12
    ESE
    12
    ESE
    11
    SE
    10
    Wind gust (mph)
    25
    25
    22
    21
    21
    20
    18
    17
    Visibility (description)
    G
    G
    G
    G
    VG
    VG
    G
    G
    Humidity
    90%
    91%
    91%
    91%
    85%
    84%
    89%
    89%
    UV - - - 1 1 1 - -
    Wind direction and speed (mph)
    13
    14
    13
    12
    12
    12
    11
    10
    Height of waves offshore (m)
    1.2
    1.0
    0.8
    0.7
    1.1
    0.9
    0.8
    0.7
    Period of waves offshore (s)
    8
    8
    7
    7
    6
    6
    6
    7
    Direction of waves offshore
    Thursday (29 January 2026)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Partly cloudy night Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
    Chance of precipitation
    20%
    30%
    30%
    20%
    30%
    30%
    30%
    30%
    Temperature (°C)
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SE
    11
    SE
    10
    SE
    11
    SE
    10
    SE
    12
    SE
    12
    ESE
    12
    ESE
    12
    Wind gust (mph)
    18
    19
    18
    21
    22
    21
    21
    22
    Visibility (description)
    VG
    VG
    VG
    G
    VG
    VG
    G
    G
    Humidity
    89%
    91%
    91%
    92%
    83%
    80%
    87%
    89%
    UV - - - 1 1 1 - -
    Wind direction and speed (mph)
    11
    Height of waves offshore (m)
    0.7
    Period of waves offshore (s)
    10
    Direction of waves offshore

    Tide times

    Friday 23 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 23 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 23 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 23 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 24 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 24 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 24 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 24 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 25 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 25 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 25 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 25 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 26 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 26 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 26 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 26 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 27 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 27 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 27 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 27 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 28 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 28 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 28 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 28 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 29 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 29 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 29 January

    Tide times and heights are from Holyhead tidal station which is 3.7 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 29 January

    Tide times and heights are from Holyhead tidal station which is 3.7 miles away. So times may be different at this beach. What does this mean?

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

    Porth Trwyn (Beach) weather map

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    WARNING
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    Flood alerts in force for Wales
    Flood alerts in force for Wales

    Wales weather forecast

    Headline:

    Unsettled with frequent showers and strong winds.

    Today:

    A cloudy start as Storm Ingrid bring outbreaks heavy rain and strengthening winds. Rain clears to the northeast through the afternoon, allowing some bright and drier spells to emerge, though frequent heavy showers follow. Strong winds, with coastal gales likely. Maximum temperature 9 °C.

    Tonight:

    Turning increasingly cloudy through the evening as showers continue to spread northwards overnight, these often heavy, particularly in the south. Remaining windy, with coastal gales possible. Minimum temperature 5 °C.

    Saturday:

    Another wet and windy start, with a continuation of heavy showers through the day. Remaining windy, with coastal gales remaining possible, though winds fading inland through the evening. Maximum temperature 9 °C.

    Outlook for Sunday to Tuesday:

    Further blustery showers through Sunday. Remaining unsettled to start the new week as bands of rain, bring prolonged heavy downpours. Feeling chillier, with overnight frost possible. Often breezy.

    Updated:

    UK long range weather forecast

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