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Caswell Bay (Swansea) 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 showers changing to overcast 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 (9.1m) at

Sunrise iconSunrise:
Sunset iconSunset:
H UV
L Pollution

    7 day forecast for Caswell Bay

    Today (14 August 2025)
    Time
    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 day Light shower day Overcast Overcast Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny day Clear night Clear night Clear night
    Chance of precipitation
    60%
    50%
    30%
    20%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature
    18°
    19°
    19°
    20°
    20°
    20°
    21°
    21°
    21°
    21°
    20°
    20°
    19°
    18°
    17°
    17°
    Feels like temperature (°C)
    17°
    18°
    18°
    19°
    18°
    19°
    19°
    19°
    19°
    19°
    19°
    19°
    19°
    18°
    17°
    17°
    Wind direction and speed
    SW
    11
    SW
    12
    SW
    12
    SW
    12
    WSW
    12
    WSW
    13
    WSW
    13
    WSW
    13
    WSW
    13
    WSW
    12
    WSW
    11
    WSW
    10
    W
    8
    W
    6
    WNW
    5
    WNW
    4
    Wind gust (mph)
    23
    23
    23
    23
    25
    25
    25
    25
    23
    22
    20
    18
    16
    13
    11
    10
    Visibility
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    92%
    92%
    88%
    85%
    85%
    83%
    78%
    76%
    75%
    75%
    76%
    77%
    83%
    89%
    92%
    93%
    UV 1 2 3 4 5 6 6 5 3 2 1 1 1 - - -
    Wind direction and speed
    11
    11
    12
    12
    12
    13
    13
    13
    13
    12
    11
    10
    8
    6
    5
    4
    Height of waves offshore (m)
    1.0
    1.0
    1.0
    1.0
    1.0
    1.1
    1.0
    1.0
    1.0
    1.0
    1.0
    1.0
    0.9
    0.8
    0.7
    0.7
    Period of waves offshore (s)
    5
    6
    8
    8
    8
    8
    8
    8
    8
    7
    7
    7
    7
    7
    7
    7
    Direction of waves offshore
    Friday (15 August 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 Clear night Clear night Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Clear night Clear night Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    16°
    15°
    15°
    15°
    14°
    14°
    14°
    15°
    17°
    19°
    21°
    22°
    23°
    23°
    24°
    24°
    24°
    24°
    24°
    24°
    23°
    21°
    20°
    20°
    Feels like temperature (°C)
    16°
    16°
    15°
    15°
    14°
    14°
    14°
    15°
    17°
    19°
    21°
    23°
    23°
    24°
    24°
    25°
    25°
    25°
    24°
    24°
    23°
    21°
    20°
    19°
    Wind direction and speed (mph)
    NW
    4
    NNW
    3
    NNW
    3
    NNW
    3
    N
    4
    N
    4
    N
    4
    NNE
    4
    NE
    4
    ENE
    4
    ESE
    3
    SSE
    4
    S
    4
    SSW
    5
    SSW
    5
    SSW
    5
    SW
    5
    WSW
    4
    WSW
    5
    WNW
    5
    NW
    5
    N
    6
    N
    7
    NNE
    7
    Wind gust (mph)
    7
    6
    7
    7
    8
    9
    9
    9
    8
    7
    8
    10
    11
    11
    11
    11
    10
    10
    10
    12
    13
    14
    16
    18
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    94%
    96%
    97%
    97%
    97%
    98%
    97%
    94%
    85%
    77%
    73%
    68%
    66%
    64%
    62%
    60%
    58%
    57%
    60%
    64%
    69%
    73%
    74%
    68%
    UV - - - - - - 1 1 1 3 4 6 6 7 6 5 4 2 1 1 1 - - -
    Wind direction and speed (mph)
    4
    3
    3
    3
    3
    4
    4
    4
    4
    4
    4
    4
    4
    5
    5
    5
    5
    4
    5
    5
    5
    6
    7
    7
    Height of waves offshore (m)
    0.6
    0.6
    0.5
    0.4
    0.4
    0.5
    0.5
    0.5
    0.5
    0.4
    0.4
    0.4
    0.3
    0.3
    0.3
    0.3
    0.3
    0.4
    0.4
    0.5
    0.5
    0.4
    0.4
    0.4
    Period of waves offshore (s)
    7
    7
    7
    7
    7
    7
    7
    7
    6
    6
    6
    6
    6
    7
    7
    10
    10
    9
    9
    9
    9
    9
    9
    9
    Direction of waves offshore
    Saturday (16 August 2025)
    Time
    00:00
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Clear night Clear night Sunny day Sunny day Sunny day Sunny day Sunny day Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    19°
    19°
    17°
    17°
    21°
    24°
    26°
    26°
    21°
    Feels like temperature (°C)
    18°
    18°
    16°
    16°
    19°
    22°
    25°
    25°
    19°
    Wind direction and speed (mph)
    NE
    8
    NE
    8
    ENE
    8
    E
    8
    ESE
    14
    ESE
    12
    ESE
    9
    E
    8
    E
    9
    Wind gust (mph)
    19
    23
    23
    29
    28
    24
    20
    18
    23
    Visibility (description)
    VG
    VG
    G
    G
    G
    VG
    VG
    VG
    VG
    Humidity
    65%
    66%
    76%
    84%
    69%
    57%
    43%
    46%
    56%
    UV - - - 1 4 7 4 1 -
    Wind direction and speed (mph)
    8
    8
    8
    8
    14
    12
    9
    8
    9
    Height of waves offshore (m)
    0.4
    0.4
    0.4
    0.6
    1.0
    1.0
    0.7
    0.6
    0.6
    Period of waves offshore (s)
    10
    10
    10
    9
    5
    5
    4
    3
    4
    Direction of waves offshore
    Sunday (17 August 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Clear night Sunny day Sunny day Sunny day Sunny day Sunny day Clear night
    Chance of precipitation
    <5%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    19°
    16°
    15°
    19°
    22°
    25°
    25°
    20°
    Feels like temperature (°C)
    16°
    14°
    12°
    15°
    20°
    24°
    24°
    19°
    Wind direction and speed (mph)
    E
    13
    E
    13
    E
    14
    ESE
    16
    ESE
    11
    ESE
    8
    ENE
    5
    ENE
    5
    Wind gust (mph)
    26
    25
    30
    28
    24
    18
    11
    13
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    59%
    73%
    75%
    64%
    51%
    42%
    43%
    61%
    UV - - 1 4 7 4 1 -
    Wind direction and speed (mph)
    13
    13
    14
    16
    11
    8
    5
    5
    Height of waves offshore (m)
    0.8
    1.0
    1.2
    1.3
    1.1
    0.8
    0.5
    0.3
    Period of waves offshore (s)
    4
    4
    4
    5
    4
    4
    3
    3
    Direction of waves offshore
    Monday (18 August 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Clear night Sunny day Sunny day Sunny day Sunny day Sunny day Clear night
    Chance of precipitation
    <5%
    <5%
    10%
    10%
    10%
    10%
    10%
    <5%
    Temperature (°C)
    18°
    16°
    16°
    19°
    22°
    25°
    24°
    20°
    Feels like temperature (°C)
    17°
    15°
    14°
    17°
    21°
    24°
    24°
    21°
    Wind direction and speed (mph)
    E
    7
    E
    9
    E
    10
    E
    11
    ESE
    9
    ESE
    7
    NE
    5
    NE
    4
    Wind gust (mph)
    18
    21
    23
    22
    20
    15
    10
    7
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    72%
    75%
    77%
    68%
    58%
    48%
    54%
    69%
    UV - - 1 4 7 3 1 -
    Wind direction and speed (mph)
    7
    9
    10
    11
    9
    7
    5
    4
    Height of waves offshore (m)
    0.3
    0.5
    0.8
    0.9
    0.8
    0.4
    0.2
    0.2
    Period of waves offshore (s)
    3
    3
    4
    4
    4
    3
    8
    8
    Direction of waves offshore
    Tuesday (19 August 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Partly cloudy night Sunny intervals Sunny day Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night
    Chance of precipitation
    <5%
    <5%
    10%
    <5%
    10%
    10%
    10%
    10%
    Temperature (°C)
    19°
    18°
    17°
    20°
    23°
    25°
    24°
    20°
    Feels like temperature (°C)
    19°
    18°
    17°
    19°
    23°
    25°
    24°
    21°
    Wind direction and speed (mph)
    ENE
    4
    E
    4
    E
    5
    ESE
    7
    ESE
    7
    SE
    6
    SE
    5
    NNW
    4
    Wind gust (mph)
    7
    8
    14
    15
    15
    12
    10
    8
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    76%
    79%
    80%
    73%
    60%
    55%
    58%
    76%
    UV - - 1 4 6 3 1 -
    Wind direction and speed (mph)
    4
    4
    5
    7
    7
    6
    5
    4
    Height of waves offshore (m)
    0.3
    0.3
    0.3
    0.3
    0.4
    0.4
    0.3
    0.3
    Period of waves offshore (s)
    7
    7
    7
    7
    7
    7
    7
    7
    Direction of waves offshore
    Wednesday (20 August 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Partly cloudy night Partly cloudy night Cloudy Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Cloudy
    Chance of precipitation
    10%
    20%
    20%
    30%
    40%
    40%
    30%
    30%
    Temperature (°C)
    19°
    18°
    17°
    20°
    22°
    23°
    22°
    19°
    Feels like temperature (°C)
    19°
    18°
    18°
    20°
    22°
    23°
    22°
    20°
    Wind direction and speed (mph)
    ENE
    4
    E
    4
    E
    4
    ESE
    6
    SE
    7
    S
    6
    WSW
    6
    NNW
    4
    Wind gust (mph)
    7
    8
    9
    12
    14
    12
    10
    8
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    Humidity
    83%
    86%
    87%
    79%
    72%
    69%
    74%
    89%
    UV - - 1 4 6 3 1 -
    Wind direction and speed (mph)
    4
    Height of waves offshore (m)
    0.3
    Period of waves offshore (s)
    6
    Direction of waves offshore

    Tide times

    Thursday 14 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 14 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 14 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 14 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 15 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 15 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 15 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 15 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 16 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 16 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 16 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 16 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 17 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 17 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 17 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 17 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 18 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 18 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 18 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 18 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 19 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 19 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 19 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 19 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 20 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 20 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 20 August

    Tide times and heights are from Mumbles tidal station which is 2.7 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 20 August

    Tide times and heights are from Mumbles tidal station which is 2.7 miles away. So times may be different at this beach. What does this mean?

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

    Caswell Bay weather map

    View the weather with our interactive map

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    Wales weather forecast

    Headline:

    Rather cloudy on Thursday, but sunshine prevailing towards the weekend.

    Today:

    Grey start for most with scattered showers, mostly light. Turning brighter and drier through the afternoon as cloud breaks and lifts. Still warm despite the cloud. Maximum temperature 24 °C.

    Tonight:

    Late sunny spells to end the day. Staying dry overnight but areas of low cloud pushing inland, providing misty conditions around some coasts and hills. Mild. Minimum temperature 12 °C.

    Friday:

    Any low cloud and patchy fog soon clearing, leaving a fine and dry day with lengthy periods of strong sunshine. Feeling hot with only a light breeze. Maximum temperature 28 °C.

    Outlook for Saturday to Monday:

    A largely settled period with lengthy sunny spells after early morning cloud clears. Warm in the sunshine, though also turning windier. Showers possible in the west on Sunday and Monday.

    Updated:

    UK long range weather forecast

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