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Aberffraw Bay (Traeth Mawr) (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

Partly cloudy changing to sunny by late morning.
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 high tide (4.3m) at

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

    6 day forecast for Aberffraw Bay (Traeth Mawr) (Beach)

    Tomorrow (25 November 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 Light shower night Light shower night Partly cloudy night Partly cloudy night Partly cloudy night 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 Partly cloudy night Partly cloudy night
    Chance of precipitation
    50%
    50%
    50%
    60%
    60%
    50%
    40%
    40%
    40%
    20%
    20%
    20%
    10%
    10%
    <5%
    <5%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature
    Feels like temperature (°C)
    Wind direction and speed
    N
    9
    N
    8
    N
    8
    NNW
    7
    NNW
    7
    NNW
    7
    N
    7
    N
    7
    N
    7
    N
    6
    N
    6
    N
    6
    N
    7
    N
    7
    N
    6
    N
    5
    N
    4
    NNE
    4
    NE
    3
    ENE
    3
    ESE
    3
    SE
    4
    SE
    4
    SE
    4
    Wind gust (mph)
    26
    21
    18
    17
    17
    17
    16
    16
    15
    13
    15
    18
    18
    18
    15
    12
    9
    7
    7
    6
    7
    8
    9
    11
    Visibility
    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
    76%
    77%
    79%
    81%
    84%
    85%
    83%
    81%
    80%
    80%
    77%
    74%
    67%
    67%
    73%
    79%
    85%
    86%
    86%
    86%
    89%
    91%
    91%
    91%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed
    9
    8
    8
    7
    7
    7
    7
    7
    7
    6
    6
    6
    7
    7
    6
    5
    4
    4
    3
    3
    3
    4
    4
    4
    Height of waves offshore (m)
    0.8
    0.8
    0.8
    0.8
    0.8
    0.8
    0.8
    0.8
    0.8
    0.8
    0.7
    0.7
    0.6
    0.6
    0.5
    0.5
    0.5
    0.4
    0.4
    0.4
    0.4
    0.3
    0.3
    0.3
    Period of waves offshore (s)
    7
    6
    6
    6
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    4
    6
    9
    11
    10
    10
    10
    Direction of waves offshore
    Wednesday (26 November 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 Cloudy Cloudy Overcast Overcast Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Overcast Overcast Overcast Overcast
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    30%
    30%
    40%
    50%
    60%
    70%
    80%
    90%
    90%
    90%
    80%
    80%
    70%
    50%
    50%
    50%
    40%
    30%
    Temperature (°C)
    10°
    10°
    10°
    10°
    10°
    10°
    11°
    11°
    11°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SSE
    5
    SSE
    6
    SSE
    7
    SSE
    9
    SSE
    11
    SSE
    12
    SSE
    14
    SSE
    15
    SSE
    15
    S
    17
    S
    19
    S
    20
    S
    21
    S
    21
    S
    21
    S
    20
    S
    19
    SSW
    17
    SSW
    16
    SSW
    14
    SSW
    13
    SSW
    11
    SSW
    11
    SSW
    11
    Wind gust (mph)
    13
    16
    19
    21
    22
    23
    25
    27
    28
    31
    34
    36
    36
    36
    36
    34
    28
    24
    19
    18
    16
    17
    18
    17
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    VG
    G
    G
    M
    M
    M
    M
    G
    G
    G
    G
    G
    VG
    Humidity
    89%
    88%
    87%
    86%
    86%
    84%
    81%
    83%
    84%
    85%
    85%
    88%
    89%
    90%
    94%
    95%
    96%
    96%
    97%
    97%
    98%
    98%
    99%
    99%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    5
    6
    7
    9
    11
    12
    14
    15
    15
    17
    19
    20
    21
    21
    21
    20
    19
    17
    16
    14
    13
    11
    11
    11
    Height of waves offshore (m)
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.4
    0.5
    0.6
    0.8
    0.9
    1.1
    1.2
    1.3
    1.5
    1.6
    1.6
    1.6
    1.5
    1.4
    1.2
    1.1
    1.1
    1.0
    Period of waves offshore (s)
    10
    10
    10
    10
    9
    9
    6
    3
    4
    4
    4
    5
    5
    6
    6
    6
    7
    7
    7
    7
    7
    7
    7
    7
    Direction of waves offshore
    Thursday (27 November 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 Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Light rain Light rain Light rain Overcast Overcast Overcast Light rain Light rain Cloudy Partly cloudy night Partly cloudy night Clear night Clear night Clear night
    Chance of precipitation
    30%
    30%
    20%
    20%
    20%
    30%
    40%
    50%
    40%
    50%
    60%
    60%
    50%
    40%
    30%
    40%
    60%
    60%
    50%
    30%
    20%
    10%
    10%
    <5%
    Temperature (°C)
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    13°
    13°
    12°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    12°
    12°
    11°
    11°
    11°
    Feels like temperature (°C)
    10°
    10°
    10°
    10°
    10°
    10°
    Wind direction and speed (mph)
    SSW
    12
    SSW
    13
    SSW
    14
    SSW
    15
    SSW
    16
    SSW
    17
    SSW
    18
    SSW
    18
    SSW
    19
    SSW
    19
    SSW
    20
    SSW
    20
    SSW
    21
    SSW
    21
    SSW
    20
    SSW
    20
    SSW
    20
    SW
    19
    SW
    18
    SW
    16
    SW
    15
    SW
    14
    WSW
    14
    WSW
    14
    Wind gust (mph)
    21
    23
    25
    25
    27
    30
    32
    32
    32
    34
    35
    36
    36
    34
    34
    34
    33
    30
    28
    24
    21
    22
    21
    21
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    G
    G
    M
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    E
    E
    E
    Humidity
    97%
    98%
    97%
    97%
    97%
    98%
    98%
    97%
    97%
    97%
    97%
    98%
    99%
    98%
    97%
    96%
    96%
    95%
    95%
    93%
    91%
    88%
    86%
    85%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    12
    13
    14
    15
    16
    17
    18
    18
    19
    19
    20
    20
    21
    21
    20
    20
    20
    19
    18
    16
    15
    14
    14
    14
    Height of waves offshore (m)
    1.0
    1.0
    1.1
    1.2
    1.3
    1.3
    1.4
    1.5
    1.5
    1.6
    1.6
    1.7
    1.8
    1.8
    1.9
    1.9
    1.9
    1.9
    1.7
    1.5
    1.4
    1.4
    1.4
    1.4
    Period of waves offshore (s)
    7
    7
    5
    5
    6
    6
    6
    6
    6
    6
    6
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    Direction of waves offshore
    Friday (28 November 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 Clear night Clear night Clear night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Cloudy Cloudy Light shower day Light shower day 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
    <5%
    <5%
    <5%
    <5%
    10%
    10%
    10%
    20%
    30%
    40%
    40%
    40%
    50%
    60%
    60%
    50%
    50%
    50%
    40%
    40%
    40%
    30%
    30%
    30%
    Temperature (°C)
    11°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    11°
    11°
    11°
    11°
    10°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    WSW
    14
    WSW
    14
    SW
    14
    SW
    14
    SW
    14
    SW
    14
    SW
    14
    SW
    14
    SW
    14
    SW
    14
    SSW
    14
    SSW
    14
    SW
    15
    SW
    15
    SW
    14
    WSW
    13
    WSW
    13
    W
    12
    W
    11
    W
    12
    W
    12
    W
    13
    W
    13
    W
    13
    Wind gust (mph)
    22
    21
    21
    21
    21
    24
    24
    22
    24
    25
    24
    24
    26
    26
    23
    21
    21
    23
    21
    25
    25
    25
    24
    25
    Visibility (description)
    E
    E
    E
    E
    E
    E
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    E
    E
    E
    E
    Humidity
    84%
    83%
    81%
    82%
    81%
    79%
    80%
    82%
    81%
    82%
    81%
    83%
    82%
    80%
    82%
    80%
    81%
    80%
    78%
    77%
    75%
    76%
    76%
    78%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    14
    14
    14
    14
    14
    14
    14
    14
    14
    14
    14
    14
    15
    15
    14
    13
    13
    12
    11
    12
    12
    13
    13
    13
    Height of waves offshore (m)
    1.4
    1.4
    1.5
    1.5
    1.6
    1.6
    1.7
    1.8
    2.0
    2.0
    2.0
    2.0
    1.9
    1.8
    1.8
    1.8
    1.8
    1.8
    1.8
    1.8
    1.8
    1.8
    1.8
    1.7
    Period of waves offshore (s)
    6
    6
    6
    6
    6
    6
    6
    7
    7
    7
    7
    7
    7
    7
    7
    7
    6
    6
    6
    6
    6
    6
    6
    6
    Direction of waves offshore
    Saturday (29 November 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 Partly cloudy night Partly cloudy night
    Chance of precipitation
    40%
    50%
    50%
    40%
    40%
    40%
    30%
    10%
    Temperature (°C)
    Feels like temperature (°C)
    Wind direction and speed (mph)
    W
    13
    W
    13
    W
    11
    WNW
    10
    WNW
    12
    NW
    11
    NW
    9
    NNW
    10
    Wind gust (mph)
    23
    21
    19
    17
    17
    14
    10
    10
    Visibility (description)
    E
    E
    VG
    VG
    VG
    VG
    G
    G
    Humidity
    78%
    80%
    83%
    86%
    77%
    81%
    87%
    87%
    UV - - - 1 1 1 - -
    Wind direction and speed (mph)
    13
    13
    11
    10
    12
    11
    9
    10
    Height of waves offshore (m)
    1.7
    1.5
    1.2
    1.1
    1.2
    1.8
    1.9
    1.8
    Period of waves offshore (s)
    6
    6
    6
    7
    9
    8
    7
    7
    Direction of waves offshore
    Sunday (30 November 2025)
    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 Light rain Light rain Light shower night Light shower night
    Chance of precipitation
    10%
    20%
    30%
    50%
    60%
    60%
    70%
    60%
    Temperature (°C)
    10°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    WNW
    9
    W
    9
    SW
    10
    SSW
    12
    SSW
    15
    SSW
    16
    SW
    16
    WSW
    16
    Wind gust (mph)
    9
    11
    13
    21
    25
    27
    27
    27
    Visibility (description)
    VG
    G
    G
    G
    G
    M
    G
    G
    Humidity
    87%
    87%
    91%
    90%
    86%
    90%
    92%
    91%
    UV - - - 1 1 1 - -
    Wind direction and speed (mph)
    9
    Height of waves offshore (m)
    1.6
    Period of waves offshore (s)
    6
    Direction of waves offshore

    Tide times

    Tuesday 25 November

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 25 November

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 25 November

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 25 November

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 26 November

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 26 November

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 26 November

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 26 November

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 27 November

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 27 November

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 27 November

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 27 November

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 28 November

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 28 November

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 28 November

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 28 November

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 29 November

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 29 November

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 29 November

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 29 November

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 30 November

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 30 November

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 30 November

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 30 November

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 miles away. So times may be different at this beach. What does this mean?

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

    Aberffraw Bay (Traeth Mawr) (Beach) weather map

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

    Wales weather forecast

    Headline:

    Cold to start, but turning milder from midweek.

    This Evening and Tonight:

    Largely clear and dry in the east overnight, though remaining cloudy in the far west with a continuous feed of showers. Under clear skies isolated frost patches may develop. Remaining breezy in western coastal regions and over hills. Minimum temperature 4 °C.

    Tuesday:

    A bright and dry day for many, with showers continuing to fade in the west and winds ease as high pressure builds. Fog and frost patches may develop overnight. Maximum temperature 9 °C.

    Outlook for Wednesday to Friday:

    Turning milder and changeable from Wednesday, as bands of rain move in from the west bringing unsettled conditions. Winds picking up towards the weekend with blustery showers possible.

    Updated:

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