A beta version of the Met Office app is available.

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 rain.
Beach safety today
Large, powerful waves
  • • only experts should take part in water activities

Tide: Next high tide (8.8m) at

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

    7 day forecast for Caswell Bay

    Today (16 March 2026)
    Time
    23:00
    Weather symbols Light rain
    Chance of precipitation
    60%
    Temperature
    10°
    Feels like temperature (°C)
    Wind direction and speed
    SSW
    14
    Wind gust (mph)
    28
    Visibility
    M
    Humidity
    97%
    UV -
    Wind direction and speed
    14
    Height of waves offshore (m)
    1.7
    Period of waves offshore (s)
    8
    Direction of waves offshore
    Tuesday (17 March 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 Overcast Overcast Overcast Overcast Light rain Overcast Overcast Overcast Sunny intervals 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 Clear night Clear night Clear night
    Chance of precipitation
    30%
    10%
    20%
    40%
    60%
    20%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    11°
    12°
    13°
    13°
    14°
    13°
    13°
    13°
    12°
    11°
    10°
    10°
    Feels like temperature (°C)
    10°
    11°
    12°
    12°
    12°
    11°
    11°
    10°
    Wind direction and speed (mph)
    SW
    13
    SW
    13
    SSW
    12
    SSW
    12
    SSW
    11
    SSW
    11
    S
    10
    S
    10
    S
    10
    S
    10
    S
    10
    SSE
    10
    SSE
    9
    SSE
    9
    S
    9
    S
    9
    S
    9
    S
    8
    S
    7
    SSE
    7
    SE
    8
    ESE
    8
    ESE
    8
    ESE
    8
    Wind gust (mph)
    28
    26
    26
    26
    26
    26
    25
    25
    25
    24
    25
    24
    25
    25
    25
    24
    22
    19
    19
    19
    17
    16
    15
    15
    Visibility (description)
    M
    M
    M
    M
    M
    M
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    Humidity
    96%
    96%
    95%
    94%
    95%
    94%
    87%
    86%
    85%
    84%
    76%
    75%
    73%
    69%
    68%
    70%
    74%
    75%
    78%
    84%
    85%
    85%
    86%
    87%
    UV - - - - - - 1 1 1 1 1 2 2 2 2 1 1 1 1 - - - - -
    Wind direction and speed (mph)
    13
    13
    12
    11
    10
    10
    10
    11
    11
    11
    11
    10
    9
    9
    9
    9
    9
    8
    8
    8
    8
    8
    8
    8
    Height of waves offshore (m)
    1.7
    1.6
    1.6
    1.5
    1.5
    1.4
    1.4
    1.4
    1.5
    1.4
    1.5
    1.5
    1.7
    1.6
    1.6
    1.6
    1.6
    1.5
    1.4
    1.4
    1.4
    1.3
    1.2
    1.2
    Period of waves offshore (s)
    8
    8
    8
    8
    8
    8
    8
    8
    8
    9
    9
    9
    9
    9
    9
    9
    10
    10
    10
    10
    10
    10
    12
    12
    Direction of waves offshore
    Wednesday (18 March 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 Clear night 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 Clear night Clear night Clear night 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)
    10°
    12°
    13°
    15°
    16°
    16°
    17°
    17°
    17°
    16°
    14°
    12°
    11°
    10°
    10°
    Feels like temperature (°C)
    11°
    12°
    13°
    14°
    15°
    15°
    14°
    14°
    12°
    10°
    Wind direction and speed (mph)
    ESE
    8
    E
    8
    E
    8
    E
    7
    ENE
    7
    ENE
    7
    E
    8
    E
    9
    E
    10
    E
    11
    E
    11
    E
    11
    E
    12
    ESE
    12
    ESE
    12
    ESE
    11
    ESE
    10
    ESE
    9
    E
    9
    E
    8
    E
    8
    E
    9
    E
    9
    E
    9
    Wind gust (mph)
    15
    15
    16
    17
    19
    20
    20
    21
    21
    22
    23
    24
    24
    24
    25
    23
    21
    20
    19
    19
    18
    18
    18
    18
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    88%
    90%
    91%
    91%
    91%
    91%
    89%
    87%
    83%
    75%
    69%
    65%
    63%
    61%
    58%
    57%
    57%
    62%
    67%
    69%
    68%
    69%
    71%
    71%
    UV - - - - - - 1 1 1 1 2 2 3 2 2 1 1 1 1 - - - - -
    Wind direction and speed (mph)
    8
    8
    7
    7
    7
    7
    7
    8
    9
    10
    11
    11
    11
    11
    11
    11
    10
    9
    9
    8
    8
    9
    9
    9
    Height of waves offshore (m)
    1.3
    1.3
    1.3
    1.2
    1.2
    1.1
    1.1
    1.1
    1.1
    1.0
    1.0
    1.1
    1.2
    1.3
    1.3
    1.3
    1.3
    1.2
    1.2
    1.1
    1.1
    1.1
    1.0
    1.0
    Period of waves offshore (s)
    12
    12
    12
    12
    12
    12
    12
    12
    12
    12
    12
    12
    17
    17
    16
    16
    16
    16
    15
    15
    15
    15
    15
    15
    Direction of waves offshore
    Thursday (19 March 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 Clear night 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 Clear night Clear night Clear night 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)
    10°
    12°
    14°
    14°
    15°
    15°
    15°
    15°
    14°
    12°
    Feels like temperature (°C)
    11°
    12°
    13°
    13°
    14°
    14°
    14°
    13°
    11°
    Wind direction and speed (mph)
    E
    9
    ENE
    8
    ENE
    7
    NE
    7
    NE
    7
    NE
    7
    NE
    7
    NNE
    6
    NE
    5
    ENE
    5
    ESE
    5
    SE
    6
    SE
    6
    SE
    7
    SE
    7
    SE
    7
    SE
    6
    SE
    6
    ESE
    5
    ENE
    5
    NE
    5
    NE
    6
    NE
    6
    NE
    6
    Wind gust (mph)
    17
    18
    18
    18
    18
    18
    19
    19
    20
    20
    20
    19
    18
    17
    16
    15
    14
    13
    12
    11
    11
    11
    11
    11
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    VG
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    G
    G
    G
    Humidity
    66%
    64%
    67%
    66%
    68%
    67%
    68%
    68%
    62%
    55%
    52%
    53%
    54%
    53%
    52%
    52%
    52%
    55%
    66%
    72%
    72%
    71%
    73%
    74%
    UV - - - - - - 1 1 1 1 2 2 3 2 2 1 1 1 1 - - - - -
    Wind direction and speed (mph)
    9
    9
    8
    7
    7
    7
    6
    6
    5
    5
    5
    5
    6
    7
    7
    7
    7
    6
    5
    5
    5
    6
    6
    6
    Height of waves offshore (m)
    1.0
    1.0
    0.9
    0.9
    0.8
    0.8
    0.8
    0.7
    0.7
    0.6
    0.6
    0.6
    0.6
    0.6
    0.5
    0.5
    0.5
    0.5
    0.5
    0.4
    0.4
    0.4
    0.4
    0.4
    Period of waves offshore (s)
    15
    14
    14
    14
    14
    14
    14
    13
    13
    13
    13
    13
    13
    12
    12
    12
    12
    12
    12
    12
    12
    12
    12
    12
    Direction of waves offshore
    Friday (20 March 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 Clear night 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 Clear night Clear night Clear night 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)
    11°
    12°
    13°
    14°
    14°
    14°
    14°
    13°
    11°
    Feels like temperature (°C)
    10°
    11°
    12°
    12°
    12°
    13°
    13°
    12°
    10°
    Wind direction and speed (mph)
    NE
    6
    NE
    5
    NE
    5
    NE
    5
    NE
    5
    NE
    5
    NE
    5
    NE
    5
    ENE
    5
    E
    5
    ESE
    5
    SE
    5
    SE
    6
    SSE
    6
    SSE
    6
    SSE
    6
    SE
    5
    SE
    5
    ENE
    5
    NE
    5
    NE
    6
    NNE
    6
    NNE
    6
    NE
    6
    Wind gust (mph)
    12
    12
    13
    13
    15
    16
    16
    17
    18
    19
    18
    18
    17
    16
    16
    14
    14
    13
    12
    11
    11
    11
    12
    12
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    G
    G
    G
    Humidity
    75%
    75%
    76%
    77%
    77%
    78%
    78%
    77%
    69%
    62%
    57%
    58%
    58%
    58%
    55%
    51%
    51%
    55%
    64%
    67%
    69%
    72%
    74%
    75%
    UV - - - - - - 1 1 1 1 2 3 3 2 2 1 1 1 1 - - - - -
    Wind direction and speed (mph)
    6
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    6
    6
    6
    6
    5
    5
    5
    6
    6
    6
    6
    6
    Height of waves offshore (m)
    0.4
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.4
    0.4
    0.4
    0.4
    0.4
    0.3
    0.3
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    Period of waves offshore (s)
    12
    12
    12
    12
    12
    12
    12
    12
    12
    12
    11
    11
    11
    11
    11
    11
    11
    11
    11
    11
    11
    11
    11
    11
    Direction of waves offshore
    Saturday (21 March 2026)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Clear night Clear night Sunny day Sunny day Sunny day Sunny day Partly cloudy night Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    12°
    13°
    11°
    Feels like temperature (°C)
    11°
    12°
    10°
    Wind direction and speed (mph)
    NE
    6
    NNE
    5
    NNE
    5
    ENE
    5
    SE
    5
    S
    6
    N
    6
    N
    5
    Wind gust (mph)
    12
    14
    15
    16
    16
    15
    13
    10
    Visibility (description)
    G
    VG
    G
    VG
    VG
    E
    VG
    VG
    Humidity
    76%
    79%
    83%
    70%
    56%
    49%
    63%
    75%
    UV - - 1 1 3 1 1 -
    Wind direction and speed (mph)
    6
    5
    5
    5
    5
    6
    6
    5
    Height of waves offshore (m)
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    Period of waves offshore (s)
    11
    11
    11
    11
    11
    11
    11
    11
    Direction of waves offshore
    Sunday (22 March 2026)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Clear night Clear night Sunny day Sunny day Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    10%
    Temperature (°C)
    12°
    13°
    11°
    Feels like temperature (°C)
    11°
    11°
    10°
    Wind direction and speed (mph)
    NNE
    5
    NE
    4
    NE
    4
    E
    4
    SSW
    5
    SW
    7
    SW
    5
    NNW
    5
    Wind gust (mph)
    9
    9
    10
    14
    15
    15
    11
    9
    Visibility (description)
    G
    G
    G
    VG
    VG
    VG
    VG
    VG
    Humidity
    81%
    86%
    90%
    75%
    59%
    55%
    69%
    82%
    UV - - 1 1 3 1 1 -
    Wind direction and speed (mph)
    4
    Height of waves offshore (m)
    0.2
    Period of waves offshore (s)
    11
    Direction of waves offshore

    Tide times

    Monday 16 March

    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 16 March

    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 16 March

    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 16 March

    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 17 March

    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 17 March

    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 17 March

    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 17 March

    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 18 March

    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 18 March

    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 18 March

    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 18 March

    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 19 March

    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 19 March

    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 19 March

    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 19 March

    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 20 March

    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 20 March

    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 20 March

    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 20 March

    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 21 March

    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 21 March

    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 21 March

    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 21 March

    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 22 March

    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 22 March

    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 22 March

    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 22 March

    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

    Loading map...

    Wales weather forecast

    Headline:

    A cloudy night. Increasing amounts of sunshine from Tuesday.

    This Evening and Tonight:

    Cloudy skies for this evening and overnight with occasional drizzly rain in places, this mostly over hills. Much milder than last night and staying frost free. Rather windy in coastal regions in the west. Minimum temperature 6 °C.

    Tuesday:

    A predominantly cloudy day with occasional drizzle, this chiefly over higher ground in the west. Occasional brighter spells developing, especially later. Blustery southerly winds and windy in the northwest. Warmer. Maximum temperature 14 °C.

    Outlook for Wednesday to Friday:

    A fine and settled spell of weather. Early fog patches clearing on Wednesday, then sunny and unseasonably warm. Gradually turning a little cloudier and somewhat cooler thereafter. Chilly nights.

    Updated:

    UK long range weather forecast

    More from the Met Office