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Trearddur Bay (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

Clear.
Beach safety today
Large, powerful waves and strong wind
  • • only experts should take part in water activities

Tide: Next low tide (1.6m) at

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

    7 day forecast for Trearddur Bay (Beach)

    Today (18 December 2025)
    Time
    23:00
    Weather symbols Clear night
    Chance of precipitation
    <5%
    Temperature
    Feels like temperature (°C)
    Wind direction and speed
    SW
    23
    Wind gust (mph)
    44
    Visibility
    E
    Humidity
    72%
    UV -
    Wind direction and speed
    23
    Height of waves offshore (m)
    1.9
    Period of waves offshore (s)
    7
    Direction of waves offshore
    Friday (19 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 Clear night 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 day Sunny day Sunny day Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Light shower night
    Chance of precipitation
    <5%
    <5%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    20%
    40%
    40%
    50%
    60%
    Temperature (°C)
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SW
    24
    SW
    26
    SW
    27
    SW
    27
    SW
    27
    SW
    27
    SW
    26
    SW
    25
    SW
    24
    WSW
    24
    WSW
    23
    WSW
    23
    WSW
    22
    WSW
    22
    WSW
    21
    SW
    20
    SW
    19
    SW
    19
    SW
    19
    SW
    19
    SW
    19
    SW
    18
    SSW
    17
    SSW
    17
    Wind gust (mph)
    46
    49
    50
    49
    47
    46
    45
    43
    42
    40
    39
    39
    37
    36
    35
    34
    33
    33
    34
    34
    34
    33
    32
    32
    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
    73%
    74%
    74%
    75%
    76%
    76%
    77%
    76%
    77%
    76%
    76%
    75%
    75%
    75%
    75%
    75%
    74%
    72%
    69%
    71%
    67%
    74%
    75%
    78%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    25
    26
    27
    28
    27
    27
    26
    25
    25
    24
    23
    23
    22
    22
    21
    20
    19
    19
    19
    19
    19
    18
    17
    17
    Height of waves offshore (m)
    2.1
    2.3
    2.4
    2.5
    2.6
    2.6
    2.7
    2.7
    2.7
    2.5
    2.3
    2.0
    1.9
    1.8
    1.7
    1.6
    1.6
    1.6
    1.6
    1.7
    1.7
    1.7
    1.6
    1.5
    Period of waves offshore (s)
    7
    7
    8
    8
    8
    9
    9
    9
    9
    9
    9
    9
    7
    7
    6
    6
    6
    6
    6
    10
    10
    9
    9
    9
    Direction of waves offshore
    Saturday (20 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 Light shower night Light shower night Partly cloudy night Partly cloudy night Partly cloudy night Clear night Clear night Clear night Sunny day Sunny day Sunny day Sunny intervals Sunny intervals Sunny intervals Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
    Chance of precipitation
    60%
    60%
    60%
    40%
    30%
    20%
    20%
    <5%
    <5%
    <5%
    <5%
    10%
    10%
    20%
    20%
    20%
    30%
    40%
    40%
    30%
    30%
    40%
    50%
    40%
    Temperature (°C)
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SSW
    17
    S
    17
    S
    18
    S
    19
    SSE
    20
    SSE
    21
    SSE
    21
    SSE
    21
    SSE
    22
    SSE
    22
    SSE
    22
    SSE
    23
    SSE
    24
    SSE
    23
    SSE
    22
    SSE
    21
    SE
    20
    SE
    19
    SE
    18
    SE
    17
    SE
    16
    SE
    15
    SE
    14
    SE
    13
    Wind gust (mph)
    31
    33
    33
    35
    35
    36
    35
    36
    37
    37
    38
    38
    39
    38
    37
    36
    36
    36
    35
    34
    31
    29
    30
    30
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    VG
    VG
    VG
    VG
    Humidity
    82%
    84%
    85%
    86%
    87%
    85%
    85%
    85%
    83%
    82%
    77%
    75%
    75%
    74%
    75%
    74%
    75%
    76%
    77%
    77%
    78%
    78%
    80%
    84%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    17
    17
    18
    19
    20
    20
    21
    21
    21
    22
    22
    23
    23
    23
    22
    21
    20
    19
    18
    17
    17
    16
    15
    14
    Height of waves offshore (m)
    1.5
    1.5
    1.5
    1.5
    1.6
    1.6
    1.7
    1.7
    1.7
    1.7
    1.7
    1.6
    1.6
    1.6
    1.6
    1.5
    1.5
    1.5
    1.7
    1.9
    2.0
    2.1
    1.9
    1.7
    Period of waves offshore (s)
    6
    6
    6
    6
    7
    7
    8
    8
    8
    8
    8
    8
    8
    8
    8
    8
    9
    9
    9
    10
    11
    11
    11
    11
    Direction of waves offshore
    Sunday (21 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 Cloudy Cloudy Cloudy Cloudy Overcast Overcast Overcast Light rain Overcast Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Partly cloudy night Cloudy Cloudy Cloudy Cloudy Cloudy Overcast
    Chance of precipitation
    40%
    30%
    40%
    40%
    50%
    50%
    50%
    50%
    50%
    40%
    40%
    30%
    30%
    30%
    30%
    30%
    30%
    30%
    30%
    30%
    30%
    40%
    40%
    50%
    Temperature (°C)
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SE
    12
    ESE
    11
    ESE
    10
    ESE
    9
    E
    9
    E
    9
    E
    9
    E
    10
    E
    10
    E
    10
    E
    10
    E
    10
    E
    11
    E
    11
    E
    12
    ENE
    12
    ENE
    11
    ENE
    11
    ENE
    11
    ENE
    11
    ENE
    11
    ENE
    10
    ENE
    10
    ENE
    10
    Wind gust (mph)
    28
    26
    24
    23
    23
    22
    25
    25
    26
    25
    24
    24
    23
    24
    22
    22
    22
    22
    23
    21
    21
    21
    20
    19
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    G
    G
    G
    G
    G
    Humidity
    85%
    86%
    87%
    87%
    88%
    89%
    91%
    91%
    91%
    91%
    91%
    90%
    87%
    88%
    88%
    89%
    92%
    92%
    92%
    92%
    92%
    93%
    93%
    93%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    12
    11
    10
    9
    9
    9
    9
    10
    10
    10
    10
    10
    10
    11
    11
    11
    10
    10
    10
    9
    9
    9
    9
    9
    Height of waves offshore (m)
    1.5
    1.3
    1.2
    1.0
    0.9
    0.9
    0.9
    1.1
    1.1
    1.0
    1.0
    1.0
    0.9
    0.9
    0.9
    0.9
    0.8
    0.8
    0.8
    0.7
    0.7
    0.7
    0.7
    0.6
    Period of waves offshore (s)
    11
    11
    11
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    9
    14
    16
    15
    15
    13
    9
    9
    9
    9
    Direction of waves offshore
    Monday (22 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 Overcast Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy 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
    50%
    40%
    30%
    30%
    30%
    30%
    30%
    30%
    30%
    30%
    20%
    20%
    20%
    10%
    10%
    10%
    20%
    20%
    20%
    20%
    10%
    10%
    10%
    <5%
    Temperature (°C)
    10°
    10°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    ENE
    10
    ENE
    9
    E
    9
    E
    9
    E
    9
    E
    9
    E
    9
    E
    9
    E
    9
    E
    9
    E
    9
    E
    9
    E
    9
    E
    10
    E
    10
    E
    10
    E
    9
    E
    8
    E
    8
    E
    8
    E
    8
    E
    8
    E
    8
    E
    9
    Wind gust (mph)
    17
    16
    15
    13
    15
    15
    17
    19
    19
    19
    18
    18
    18
    19
    19
    19
    19
    19
    18
    18
    18
    19
    19
    19
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    Humidity
    94%
    94%
    95%
    94%
    94%
    93%
    93%
    93%
    92%
    92%
    91%
    89%
    87%
    86%
    87%
    88%
    92%
    92%
    92%
    92%
    92%
    92%
    92%
    91%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    10
    10
    9
    8
    8
    8
    8
    7
    7
    7
    Height of waves offshore (m)
    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
    0.5
    0.5
    0.6
    0.8
    1.0
    1.0
    1.0
    0.9
    0.9
    0.9
    Period of waves offshore (s)
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    8
    8
    8
    8
    8
    8
    4
    4
    4
    5
    5
    5
    6
    Direction of waves offshore
    Tuesday (23 December 2025)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Cloudy Cloudy Cloudy Cloudy Sunny intervals Partly cloudy night Overcast Overcast
    Chance of precipitation
    10%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    Feels like temperature (°C)
    Wind direction and speed (mph)
    E
    8
    E
    9
    ENE
    9
    ENE
    9
    ENE
    12
    ENE
    13
    ENE
    13
    ENE
    13
    Wind gust (mph)
    14
    10
    10
    11
    15
    16
    17
    16
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    G
    Humidity
    91%
    89%
    90%
    89%
    83%
    85%
    86%
    87%
    UV - - - 1 1 1 - -
    Wind direction and speed (mph)
    7
    8
    9
    9
    11
    12
    12
    13
    Height of waves offshore (m)
    1.0
    0.9
    0.7
    0.7
    0.5
    0.4
    0.5
    0.5
    Period of waves offshore (s)
    6
    6
    6
    6
    6
    15
    15
    15
    Direction of waves offshore
    Wednesday (24 December 2025)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Overcast Overcast Overcast Overcast Overcast Overcast Cloudy Overcast
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    Feels like temperature (°C)
    Wind direction and speed (mph)
    ENE
    13
    ENE
    13
    ENE
    13
    ENE
    13
    ENE
    14
    ENE
    14
    ENE
    13
    ENE
    13
    Wind gust (mph)
    17
    17
    17
    19
    21
    19
    17
    15
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    VG
    Humidity
    87%
    85%
    84%
    85%
    81%
    82%
    83%
    84%
    UV - - - 1 1 1 - -
    Wind direction and speed (mph)
    13
    Height of waves offshore (m)
    0.6
    Period of waves offshore (s)
    8
    Direction of waves offshore

    Tide times

    Thursday 18 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 24 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 24 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 24 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 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 24 December

    Tide times and heights are from Trearddur Bay tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

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

    Trearddur Bay (Beach) weather map

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    WARNING
    Flood warnings icon
    Flood warnings in force for Wales
    Flood warnings in force for Wales

    Wales weather forecast

    Headline:

    Sunny spells and a chance of showers on Friday.

    This Evening and Tonight:

    Slightly drier for some at first but another band of rain or showers will quickly spread eastwards this evening, with occasional heavy bursts. Clearer skies following overnight with scattered showers. Turning colder than last night but staying generally frost free. Minimum temperature 4 °C.

    Friday:

    Friday brings a mixture of sunshine and scattered showers, these locally heavy. Fewer showers by the afternoon. Quite mild again but feeling cooler in the breeze, although winds easing later. Maximum temperature 11 °C.

    Outlook for Saturday to Monday:

    After a mostly fine start, turning wet and windy in the west later on Saturday. Winds easing thereafter but often cloudy on Sunday and Monday with occasional rain or drizzle.

    Updated:

    UK long range weather forecast

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