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

Sunny intervals changing to partly cloudy by nighttime.
🏖️ Beach safety today:

Enjoy the beach but be aware that the wind may affect your control of direction

• Beginner paddleboarders/kayakers should go on the water with an instructor or a more experienced person

Tide: Next low tide (1.6m) at

Sunrise iconSunrise:
Sunset iconSunset:
H UV
L Pollution

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

    Today (19 May 2025)
    Time
    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 Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny day Sunny intervals 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
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    <5%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature
    10°
    12°
    13°
    14°
    15°
    15°
    15°
    16°
    16°
    16°
    16°
    15°
    14°
    14°
    12°
    11°
    11°
    Feels like temperature (°C)
    11°
    12°
    12°
    13°
    13°
    13°
    13°
    14°
    14°
    13°
    13°
    12°
    12°
    11°
    10°
    Wind direction and speed
    ENE
    6
    ENE
    6
    ENE
    7
    E
    8
    NNE
    8
    NNE
    10
    NNE
    11
    NNE
    11
    NE
    11
    NE
    11
    NE
    12
    NE
    12
    NE
    11
    NE
    10
    NE
    8
    NE
    7
    NE
    7
    Wind gust (mph)
    14
    17
    17
    17
    19
    20
    21
    20
    20
    20
    20
    20
    18
    15
    14
    12
    12
    Visibility
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    78%
    72%
    62%
    56%
    54%
    53%
    53%
    53%
    53%
    54%
    56%
    60%
    64%
    70%
    80%
    85%
    86%
    UV 1 2 3 4 5 6 6 6 5 3 2 1 1 1 1 - -
    Wind direction and speed
    6
    7
    7
    8
    9
    10
    11
    11
    11
    11
    12
    12
    11
    10
    8
    7
    7
    Height of waves offshore (m)
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    Period of waves offshore (s)
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    8
    Direction of waves offshore
    Tuesday (20 May 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 Sunny day Sunny day Sunny intervals Sunny day Sunny day Sunny day Sunny day Sunny intervals 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
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    10%
    <5%
    10%
    10%
    10%
    20%
    30%
    30%
    30%
    20%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    Temperature (°C)
    10°
    10°
    11°
    13°
    15°
    16°
    16°
    16°
    16°
    16°
    16°
    16°
    16°
    16°
    15°
    14°
    12°
    11°
    10°
    Feels like temperature (°C)
    11°
    13°
    14°
    15°
    15°
    15°
    14°
    15°
    14°
    15°
    15°
    15°
    14°
    13°
    12°
    11°
    10°
    Wind direction and speed (mph)
    NE
    6
    NE
    5
    ENE
    5
    ENE
    4
    ENE
    4
    ENE
    4
    E
    3
    ENE
    3
    ESE
    3
    SW
    3
    WSW
    5
    W
    6
    W
    8
    WNW
    8
    WNW
    8
    WNW
    8
    NW
    7
    WNW
    7
    WNW
    7
    WNW
    7
    NW
    6
    NW
    4
    NW
    3
    WNW
    3
    Wind gust (mph)
    11
    10
    10
    10
    9
    7
    6
    5
    6
    8
    9
    12
    13
    13
    12
    11
    10
    10
    10
    10
    9
    8
    5
    4
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    88%
    89%
    88%
    89%
    89%
    88%
    86%
    76%
    66%
    58%
    55%
    54%
    52%
    51%
    49%
    51%
    52%
    52%
    53%
    59%
    66%
    80%
    85%
    90%
    UV - - - - - 1 1 1 2 3 4 5 6 6 6 5 3 2 1 1 1 1 - -
    Wind direction and speed (mph)
    6
    6
    5
    5
    4
    4
    3
    3
    3
    3
    5
    7
    8
    8
    8
    8
    7
    7
    7
    7
    6
    4
    3
    3
    Height of waves offshore (m)
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    Period of waves offshore (s)
    8
    8
    8
    8
    8
    8
    8
    8
    8
    8
    8
    8
    8
    8
    8
    8
    8
    8
    8
    8
    8
    8
    8
    8
    Direction of waves offshore
    Wednesday (21 May 2025)
    Time
    00:00
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Sunny day Sunny day Sunny day Sunny day Clear night
    Chance of precipitation
    10%
    30%
    30%
    30%
    30%
    30%
    20%
    <5%
    <5%
    Temperature (°C)
    10°
    11°
    14°
    16°
    16°
    15°
    Feels like temperature (°C)
    10°
    13°
    14°
    14°
    14°
    Wind direction and speed (mph)
    SW
    3
    WSW
    3
    SSE
    3
    N
    2
    NW
    6
    NW
    10
    NNW
    10
    NNW
    8
    N
    3
    Wind gust (mph)
    4
    4
    4
    9
    14
    15
    15
    13
    6
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    91%
    92%
    94%
    90%
    68%
    58%
    53%
    56%
    88%
    UV - - - 1 4 6 4 1 -
    Wind direction and speed (mph)
    3
    3
    3
    3
    6
    10
    10
    8
    3
    Height of waves offshore (m)
    0.2
    0.2
    0.2
    0.2
    0.2
    0.3
    0.3
    0.3
    0.2
    Period of waves offshore (s)
    8
    8
    8
    8
    8
    4
    4
    3
    7
    Direction of waves offshore
    Thursday (22 May 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    10°
    13°
    14°
    15°
    14°
    Feels like temperature (°C)
    11°
    12°
    12°
    12°
    Wind direction and speed (mph)
    N
    3
    NNE
    5
    NNE
    7
    N
    11
    N
    12
    N
    11
    N
    9
    NNE
    5
    Wind gust (mph)
    9
    11
    16
    19
    20
    17
    13
    9
    Visibility (description)
    VG
    VG
    VG
    VG
    E
    E
    E
    E
    Humidity
    94%
    92%
    80%
    57%
    50%
    43%
    45%
    77%
    UV - - 1 4 6 4 1 -
    Wind direction and speed (mph)
    2
    4
    6
    10
    12
    11
    9
    5
    Height of waves offshore (m)
    0.3
    0.6
    0.5
    0.4
    0.3
    0.3
    0.2
    0.2
    Period of waves offshore (s)
    5
    4
    5
    5
    6
    6
    6
    6
    Direction of waves offshore
    Friday (23 May 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Sunny day Sunny day Sunny day Sunny day Sunny intervals Sunny intervals Cloudy
    Chance of precipitation
    <5%
    <5%
    10%
    10%
    20%
    20%
    20%
    30%
    Temperature (°C)
    10°
    14°
    15°
    15°
    14°
    11°
    Feels like temperature (°C)
    12°
    12°
    13°
    12°
    Wind direction and speed (mph)
    NE
    4
    ENE
    4
    NW
    5
    W
    9
    W
    11
    W
    11
    W
    9
    SW
    8
    Wind gust (mph)
    8
    9
    13
    17
    18
    17
    12
    8
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    87%
    89%
    74%
    54%
    53%
    51%
    59%
    88%
    UV - - 1 4 6 3 1 -
    Wind direction and speed (mph)
    4
    4
    5
    9
    11
    11
    9
    8
    Height of waves offshore (m)
    0.2
    0.2
    0.2
    0.2
    0.3
    0.5
    0.7
    0.8
    Period of waves offshore (s)
    6
    6
    6
    6
    3
    3
    4
    5
    Direction of waves offshore
    Saturday (24 May 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Cloudy Light rain Light rain Light rain Light rain Light rain Cloudy Cloudy
    Chance of precipitation
    40%
    50%
    50%
    60%
    60%
    50%
    50%
    50%
    Temperature (°C)
    10°
    10°
    13°
    14°
    16°
    15°
    15°
    13°
    Feels like temperature (°C)
    11°
    12°
    14°
    13°
    12°
    12°
    Wind direction and speed (mph)
    SSW
    9
    S
    9
    SSW
    9
    SW
    12
    SSW
    13
    SSW
    13
    SSW
    13
    SW
    11
    Wind gust (mph)
    7
    12
    20
    25
    26
    25
    24
    21
    Visibility (description)
    G
    G
    G
    M
    M
    M
    G
    G
    Humidity
    93%
    96%
    93%
    93%
    90%
    91%
    93%
    91%
    UV - - 1 2 3 2 1 -
    Wind direction and speed (mph)
    9
    9
    9
    12
    13
    13
    13
    11
    Height of waves offshore (m)
    0.7
    0.8
    0.7
    0.7
    Period of waves offshore (s)
    5
    5
    5
    5
    Direction of waves offshore
    Sunday (25 May 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Cloudy Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night
    Chance of precipitation
    40%
    40%
    40%
    30%
    30%
    20%
    10%
    20%
    Temperature (°C)
    13°
    12°
    11°
    13°
    15°
    15°
    14°
    12°
    Feels like temperature (°C)
    11°
    10°
    11°
    12°
    13°
    12°
    11°
    Wind direction and speed (mph)
    SW
    10
    SW
    10
    WSW
    10
    WSW
    13
    WSW
    13
    WSW
    14
    WSW
    12
    SW
    9
    Wind gust (mph)
    18
    18
    23
    24
    24
    23
    20
    17
    Visibility (description)
    G
    G
    G
    G
    VG
    VG
    VG
    VG
    Humidity
    89%
    92%
    89%
    83%
    72%
    66%
    72%
    81%
    UV - - 1 4 6 3 1 -
    Wind direction and speed (mph)
    10
    Height of waves offshore (m)
    Period of waves offshore (s)
    Direction of waves offshore
    Monday (26 May 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Partly cloudy night Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night
    Chance of precipitation
    30%
    30%
    40%
    40%
    40%
    20%
    20%
    30%
    Temperature (°C)
    12°
    11°
    11°
    13°
    14°
    15°
    14°
    12°
    Feels like temperature (°C)
    10°
    11°
    12°
    12°
    12°
    11°
    Wind direction and speed (mph)
    SW
    9
    SW
    9
    WSW
    10
    WSW
    12
    WSW
    13
    SW
    13
    SW
    11
    SW
    8
    Wind gust (mph)
    15
    13
    21
    24
    26
    23
    19
    17
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    Humidity
    85%
    87%
    84%
    77%
    69%
    66%
    72%
    89%
    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

    Monday 19 May

    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

    Monday 19 May

    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

    Monday 19 May

    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

    Monday 19 May

    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 20 May

    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 20 May

    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 20 May

    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 20 May

    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 21 May

    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 21 May

    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 21 May

    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 21 May

    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 22 May

    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 22 May

    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 22 May

    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 22 May

    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 23 May

    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 23 May

    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 23 May

    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 23 May

    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 24 May

    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 24 May

    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 24 May

    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 24 May

    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 25 May

    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 25 May

    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 25 May

    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 25 May

    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

    Monday 26 May

    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

    Monday 26 May

    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

    Monday 26 May

    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

    Monday 26 May

    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.

    UK video forecast

    Aberffraw Bay (Traeth Mawr) (Beach) weather map

    View the weather with our interactive map

    Loading map...

    Wales weather forecast

    Headline:

    Scattered showers and sunny spells this week.

    Today:

    Rather cloudy overall, though some bright or sunny spells emerging. Scattered showers developing, perhaps heavy and thundery in places with gusty winds. Feeling less warm than the weekend. Maximum temperature 19 °C.

    Tonight:

    Showers becoming more isolated, though potentially lingering in the north until the end of the night. Largely clear skies developing in the south. Locally chilly in rural spots. Minimum temperature 4 °C.

    Tuesday:

    A fine start with some bright spells. Showers again bubbling up into the afternoon, possibly heavy and thundery. Feeling pleasant in any intermediary sunshine. Maximum temperature 20 °C.

    Outlook for Wednesday to Friday:

    Continuing chance of showers on Wednesday, again potentially heavy and thundery. Drier on Thursday and Friday with bright or sunny spells. Still locally chilly overnight under clear skies.

    Updated:

    UK long range weather forecast

    More from the Met Office