Cardiff (Cardiff) weather

Forecast days

Overcast.
Sunrise iconSunrise:
Sunset iconSunset:
M UV
L Pollution
No pollen data.
Next low tide: for
Penarth (Beach)

    7 day forecast for Cardiff

    Today (18 September 2025)
    Time
    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 Cloudy Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Cloudy
    Chance of precipitation
    10%
    20%
    10%
    10%
    <5%
    <5%
    <5%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature
    18°
    19°
    19°
    20°
    20°
    20°
    20°
    19°
    19°
    18°
    18°
    18°
    17°
    Feels like temperature (°C)
    16°
    17°
    17°
    17°
    18°
    18°
    18°
    18°
    18°
    17°
    17°
    17°
    16°
    Wind direction and speed
    WSW
    14
    WSW
    14
    WSW
    14
    WSW
    14
    WSW
    13
    WSW
    12
    WSW
    10
    SW
    9
    SW
    9
    SSW
    9
    SSW
    9
    SSW
    9
    SSW
    9
    Wind gust (mph)
    29
    30
    30
    29
    28
    26
    23
    21
    21
    22
    22
    21
    21
    Visibility
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    89%
    85%
    84%
    77%
    75%
    76%
    77%
    79%
    83%
    84%
    85%
    85%
    85%
    UV 2 2 3 3 2 1 1 1 1 - - - -
    Friday (19 September 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 Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals 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 Partly cloudy night Partly cloudy night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    10%
    10%
    10%
    Temperature (°C)
    17°
    17°
    17°
    17°
    16°
    16°
    16°
    16°
    16°
    16°
    17°
    18°
    18°
    19°
    20°
    20°
    21°
    21°
    20°
    19°
    18°
    17°
    17°
    17°
    Feels like temperature (°C)
    16°
    16°
    16°
    16°
    16°
    16°
    16°
    16°
    16°
    16°
    17°
    17°
    18°
    19°
    20°
    20°
    21°
    20°
    20°
    19°
    18°
    18°
    17°
    17°
    Wind direction and speed (mph)
    S
    9
    S
    8
    S
    7
    S
    6
    S
    6
    S
    6
    S
    5
    S
    5
    S
    5
    S
    6
    S
    6
    S
    7
    S
    7
    SSW
    6
    SSW
    6
    SSW
    5
    SW
    6
    WSW
    6
    W
    6
    W
    5
    W
    4
    WSW
    4
    WSW
    4
    SSW
    4
    Wind gust (mph)
    21
    19
    18
    16
    15
    14
    12
    10
    13
    15
    16
    16
    16
    14
    14
    12
    12
    11
    10
    10
    9
    7
    7
    8
    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
    86%
    87%
    88%
    89%
    90%
    90%
    89%
    90%
    87%
    85%
    82%
    77%
    75%
    73%
    69%
    67%
    68%
    71%
    75%
    82%
    86%
    89%
    91%
    92%
    UV - - - - - - 1 1 1 1 2 3 3 3 3 2 1 1 1 1 - - - -
    Saturday (20 September 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 Cloudy Cloudy Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Cloudy Cloudy Cloudy Sunny intervals Cloudy Cloudy Cloudy Light shower night Light shower night Light shower night Light shower night Light shower night
    Chance of precipitation
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    20%
    20%
    30%
    30%
    50%
    40%
    40%
    40%
    40%
    50%
    50%
    50%
    50%
    60%
    60%
    60%
    70%
    Temperature (°C)
    16°
    16°
    16°
    16°
    15°
    16°
    15°
    15°
    15°
    16°
    16°
    17°
    17°
    18°
    18°
    18°
    18°
    17°
    16°
    15°
    15°
    14°
    14°
    14°
    Feels like temperature (°C)
    16°
    16°
    16°
    16°
    15°
    15°
    15°
    15°
    15°
    15°
    16°
    16°
    16°
    16°
    17°
    16°
    15°
    15°
    14°
    13°
    13°
    12°
    12°
    12°
    Wind direction and speed (mph)
    S
    4
    S
    4
    S
    4
    S
    4
    S
    4
    SSE
    5
    SSE
    5
    SSE
    5
    SSE
    6
    SSE
    7
    SSE
    7
    SSE
    9
    SSE
    10
    S
    11
    S
    12
    SSW
    12
    SSW
    13
    SW
    14
    SSW
    14
    SSW
    14
    SW
    13
    SW
    13
    SW
    13
    SW
    13
    Wind gust (mph)
    8
    8
    8
    8
    9
    9
    10
    12
    15
    15
    16
    19
    21
    21
    21
    21
    20
    21
    23
    21
    24
    28
    27
    24
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    E
    E
    E
    E
    E
    E
    E
    Humidity
    91%
    91%
    90%
    90%
    90%
    91%
    91%
    90%
    88%
    87%
    87%
    87%
    86%
    83%
    80%
    77%
    75%
    74%
    75%
    78%
    80%
    82%
    82%
    79%
    UV - - - - - - 1 1 1 1 1 1 2 3 2 2 2 1 1 1 - - - -
    Sunday (21 September 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 Light shower night Light shower night Light shower night Light shower night Cloudy Cloudy Cloudy Cloudy Overcast Light shower day Cloudy Cloudy Cloudy Cloudy Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Cloudy Partly cloudy night Partly cloudy night
    Chance of precipitation
    70%
    60%
    60%
    50%
    50%
    50%
    50%
    40%
    40%
    30%
    50%
    50%
    60%
    50%
    60%
    60%
    60%
    60%
    50%
    50%
    40%
    50%
    40%
    40%
    Temperature (°C)
    14°
    13°
    13°
    12°
    12°
    12°
    12°
    11°
    11°
    12°
    12°
    13°
    13°
    14°
    14°
    14°
    14°
    14°
    13°
    12°
    12°
    11°
    11°
    11°
    Feels like temperature (°C)
    11°
    11°
    11°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    11°
    11°
    12°
    12°
    12°
    12°
    12°
    12°
    11°
    10°
    10°
    Wind direction and speed (mph)
    SW
    13
    SW
    12
    WSW
    11
    WSW
    11
    WSW
    10
    WSW
    9
    W
    9
    W
    8
    W
    8
    W
    9
    WNW
    9
    NW
    10
    NW
    10
    NW
    10
    NNW
    10
    NNW
    10
    NNW
    10
    NNW
    10
    NNW
    10
    NNW
    9
    N
    8
    NNW
    8
    N
    8
    N
    8
    Wind gust (mph)
    26
    24
    23
    22
    21
    20
    19
    17
    20
    20
    21
    21
    23
    23
    22
    22
    23
    21
    18
    16
    16
    17
    17
    17
    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%
    82%
    84%
    84%
    85%
    85%
    85%
    86%
    85%
    81%
    76%
    70%
    68%
    64%
    64%
    62%
    62%
    65%
    67%
    72%
    75%
    76%
    76%
    78%
    UV - - - - - - 1 1 1 1 2 3 3 3 3 2 1 1 1 1 - - - -
    Monday (22 September 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 Partly cloudy night Partly cloudy night Sunny intervals 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 Clear night Clear night Clear night
    Chance of precipitation
    30%
    30%
    30%
    20%
    20%
    20%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    20%
    20%
    20%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    Temperature (°C)
    10°
    10°
    10°
    10°
    10°
    12°
    13°
    14°
    14°
    15°
    15°
    15°
    15°
    14°
    13°
    12°
    11°
    11°
    10°
    Feels like temperature (°C)
    10°
    11°
    12°
    12°
    12°
    12°
    12°
    12°
    11°
    10°
    Wind direction and speed (mph)
    N
    8
    N
    8
    N
    8
    N
    8
    N
    8
    N
    8
    N
    8
    N
    8
    N
    8
    NNE
    10
    NNE
    11
    NNE
    12
    NNE
    12
    NNE
    12
    NNE
    12
    NNE
    12
    NNE
    11
    NNE
    11
    NNE
    11
    N
    10
    N
    9
    N
    8
    N
    8
    N
    8
    Wind gust (mph)
    17
    17
    19
    19
    19
    19
    19
    20
    23
    25
    25
    25
    24
    23
    22
    22
    21
    20
    18
    18
    19
    19
    18
    17
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    E
    E
    E
    E
    E
    E
    E
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    78%
    79%
    79%
    77%
    77%
    78%
    78%
    78%
    77%
    71%
    65%
    59%
    55%
    47%
    45%
    43%
    43%
    44%
    50%
    56%
    60%
    62%
    66%
    67%
    UV - - - - - - 1 1 1 1 3 3 4 4 3 2 2 1 1 1 - - - -
    Tuesday (23 September 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 Partly cloudy night Sunny intervals Sunny intervals Cloudy Sunny intervals Partly cloudy night Partly cloudy night
    Chance of precipitation
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    10°
    12°
    14°
    15°
    13°
    12°
    Feels like temperature (°C)
    10°
    12°
    13°
    11°
    10°
    Wind direction and speed (mph)
    N
    8
    N
    7
    NNW
    7
    NNW
    7
    N
    9
    NNE
    10
    NNE
    10
    NNE
    9
    NNE
    7
    Wind gust (mph)
    16
    14
    10
    10
    15
    15
    15
    12
    10
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    70%
    71%
    75%
    78%
    65%
    54%
    49%
    59%
    70%
    UV - - - 1 2 4 1 1 -
    Wednesday (24 September 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 Sunny intervals Sunny intervals Cloudy Cloudy Cloudy Partly cloudy night
    Chance of precipitation
    <5%
    <5%
    <5%
    10%
    10%
    <5%
    <5%
    <5%
    Temperature (°C)
    11°
    10°
    12°
    15°
    15°
    14°
    12°
    Feels like temperature (°C)
    11°
    13°
    14°
    12°
    11°
    Wind direction and speed (mph)
    NNE
    7
    NNE
    7
    NNE
    7
    NE
    9
    NE
    9
    NNE
    9
    NNE
    8
    NNE
    7
    Wind gust (mph)
    8
    7
    9
    11
    11
    10
    9
    7
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    75%
    81%
    84%
    73%
    59%
    53%
    66%
    75%
    UV - - 1 2 4 1 1 -

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

    Wales weather forecast

    Headline:

    Often cloudy with patchy rain at times.

    Today:

    A cloudy, damp and mild start to Thursday. Cloud breaking in the east with some brighter spells, but drizzle persisting over the hills in the west. Staying windy and humid. Maximum temperature 20 °C.

    Tonight:

    Remaining cloudy in the west overnight with drizzle persisting over hills. Drier in the east with a few clear spells. Windy in the northwest, but winds easing elsewhere by dawn. Minimum temperature 12 °C.

    Friday:

    Cloudy in the west with rain and drizzle, turning heavy at times over hills and mountains. Some brighter and drier intervals in the east. Winds continue to ease. Feeling humid. Maximum temperature 20 °C.

    Outlook for Saturday to Monday:

    Remaining changeable with showers or longer spells of rain on Saturday. Turning colder through Sunday as showery rain clears southeast, leaving sunny spells and showers on Monday.

    Updated:

    UK long range weather forecast

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