Llanishen (Cardiff) weather

Forecast days

Cloudy changing to heavy rain by lunchtime.
Sunrise iconSunrise:
Sunset iconSunset:
M UV
L Pollution

    7 day forecast for Llanishen

    Today (30 August 2025)
    Time
    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 Cloudy Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Light shower day Sunny intervals Partly cloudy night Light shower night Light shower night Light shower night
    Chance of precipitation
    10%
    40%
    90%
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    90%
    80%
    30%
    40%
    50%
    50%
    50%
    Temperature
    16°
    18°
    18°
    17°
    17°
    18°
    18°
    18°
    18°
    18°
    17°
    16°
    15°
    15°
    Feels like temperature (°C)
    15°
    17°
    17°
    16°
    16°
    16°
    16°
    17°
    17°
    16°
    15°
    15°
    14°
    13°
    Wind direction and speed
    S
    8
    SSW
    10
    S
    11
    S
    12
    S
    12
    S
    13
    S
    13
    SSW
    13
    SSW
    12
    SW
    12
    WSW
    11
    SW
    9
    SW
    9
    SW
    9
    Wind gust (mph)
    25
    28
    30
    31
    32
    33
    34
    33
    33
    31
    29
    28
    28
    28
    Visibility
    VG
    VG
    VG
    M
    M
    M
    P
    M
    VG
    VG
    E
    E
    E
    E
    Humidity
    87%
    80%
    77%
    92%
    95%
    96%
    96%
    95%
    93%
    88%
    86%
    84%
    84%
    84%
    UV 2 2 3 2 2 1 1 1 1 1 1 - - -
    Sunday (31 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 Light shower 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 Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    60%
    40%
    30%
    20%
    30%
    30%
    20%
    10%
    10%
    10%
    30%
    50%
    70%
    80%
    70%
    70%
    70%
    60%
    40%
    30%
    30%
    30%
    30%
    30%
    Temperature (°C)
    14°
    14°
    14°
    14°
    13°
    14°
    13°
    13°
    14°
    16°
    17°
    18°
    18°
    18°
    18°
    19°
    19°
    18°
    18°
    17°
    16°
    16°
    15°
    15°
    Feels like temperature (°C)
    13°
    13°
    12°
    12°
    12°
    12°
    12°
    12°
    13°
    14°
    14°
    15°
    15°
    15°
    15°
    16°
    15°
    15°
    15°
    14°
    14°
    14°
    13°
    13°
    Wind direction and speed (mph)
    SW
    9
    SW
    9
    SW
    8
    SW
    9
    SSW
    9
    SSW
    9
    SSW
    9
    SSW
    9
    SSW
    10
    SSW
    11
    SSW
    13
    SSW
    14
    SSW
    15
    SSW
    15
    SSW
    15
    SSW
    15
    SSW
    14
    SSW
    14
    SSW
    14
    SSW
    13
    SSW
    13
    SSW
    12
    SSW
    11
    SSW
    11
    Wind gust (mph)
    28
    27
    27
    27
    27
    27
    27
    29
    32
    36
    38
    40
    41
    42
    42
    41
    41
    38
    36
    34
    33
    32
    32
    31
    Visibility (description)
    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
    84%
    85%
    85%
    84%
    85%
    84%
    84%
    84%
    82%
    75%
    68%
    65%
    61%
    59%
    59%
    55%
    57%
    62%
    63%
    65%
    69%
    75%
    77%
    82%
    UV - - - - - - 1 1 1 2 3 4 5 5 5 4 2 1 1 1 1 - - -
    Monday (1 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 Light shower night Heavy shower night Heavy shower day Heavy shower day Heavy shower day Light shower day Heavy shower night Light shower night
    Chance of precipitation
    40%
    70%
    90%
    ≥95%
    ≥95%
    90%
    80%
    80%
    80%
    Temperature (°C)
    15°
    15°
    15°
    14°
    16°
    17°
    17°
    16°
    14°
    Feels like temperature (°C)
    13°
    13°
    13°
    13°
    14°
    15°
    15°
    14°
    13°
    Wind direction and speed (mph)
    SSW
    10
    SSW
    10
    SSW
    9
    SW
    8
    WSW
    9
    WSW
    12
    WSW
    13
    WSW
    9
    WSW
    5
    Wind gust (mph)
    30
    30
    29
    26
    28
    33
    34
    24
    12
    Visibility (description)
    E
    E
    E
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    83%
    84%
    86%
    93%
    88%
    79%
    69%
    78%
    87%
    UV - - - 1 3 5 3 1 -
    Tuesday (2 September 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Light shower night Light shower night Heavy rain Heavy rain Heavy shower day Heavy shower day Light shower night Light shower night
    Chance of precipitation
    70%
    70%
    70%
    90%
    90%
    90%
    70%
    60%
    Temperature (°C)
    13°
    13°
    13°
    15°
    16°
    16°
    15°
    14°
    Feels like temperature (°C)
    12°
    12°
    12°
    14°
    15°
    15°
    14°
    13°
    Wind direction and speed (mph)
    SW
    4
    SW
    4
    S
    5
    SSE
    9
    S
    10
    SSW
    11
    SW
    10
    WSW
    9
    Wind gust (mph)
    10
    11
    20
    25
    26
    25
    18
    18
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    92%
    92%
    93%
    91%
    87%
    91%
    90%
    91%
    UV - - 1 1 3 2 1 -
    Wednesday (3 September 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Light shower night Light shower night Light shower day Light shower day Light shower day Light shower day Partly cloudy night Cloudy
    Chance of precipitation
    60%
    50%
    50%
    70%
    70%
    60%
    50%
    50%
    Temperature (°C)
    14°
    13°
    13°
    15°
    17°
    17°
    16°
    15°
    Feels like temperature (°C)
    13°
    12°
    12°
    14°
    15°
    15°
    14°
    13°
    Wind direction and speed (mph)
    W
    8
    W
    8
    WSW
    7
    SW
    10
    SW
    11
    SSW
    10
    SW
    10
    SSW
    9
    Wind gust (mph)
    17
    16
    20
    24
    25
    23
    18
    17
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    91%
    91%
    91%
    83%
    75%
    77%
    80%
    87%
    UV - - 1 2 4 2 1 -
    Thursday (4 September 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Light shower night Partly cloudy night Light shower day Light shower day Light shower day Sunny intervals Partly cloudy night Partly cloudy night
    Chance of precipitation
    50%
    50%
    70%
    70%
    70%
    50%
    20%
    30%
    Temperature (°C)
    14°
    14°
    13°
    15°
    17°
    17°
    15°
    14°
    Feels like temperature (°C)
    13°
    12°
    12°
    13°
    14°
    14°
    13°
    13°
    Wind direction and speed (mph)
    SW
    9
    WSW
    10
    WSW
    10
    W
    11
    WSW
    14
    WSW
    14
    WSW
    12
    WSW
    9
    Wind gust (mph)
    19
    19
    22
    27
    28
    27
    20
    16
    Visibility (description)
    VG
    G
    G
    VG
    VG
    VG
    VG
    VG
    Humidity
    89%
    89%
    88%
    84%
    73%
    70%
    76%
    83%
    UV - - 1 3 5 2 1 -
    Friday (5 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 Light shower day Sunny intervals Sunny intervals Partly cloudy night Cloudy
    Chance of precipitation
    30%
    20%
    40%
    50%
    40%
    20%
    10%
    20%
    Temperature (°C)
    14°
    13°
    13°
    15°
    17°
    18°
    16°
    15°
    Feels like temperature (°C)
    12°
    12°
    11°
    14°
    15°
    15°
    15°
    14°
    Wind direction and speed (mph)
    WSW
    8
    WSW
    9
    WSW
    8
    WSW
    11
    WSW
    13
    WSW
    12
    WSW
    11
    SW
    8
    Wind gust (mph)
    14
    13
    17
    21
    23
    22
    16
    11
    Visibility (description)
    VG
    G
    G
    G
    VG
    VG
    VG
    VG
    Humidity
    87%
    88%
    87%
    82%
    70%
    66%
    75%
    85%
    UV - - 1 3 5 2 1 -

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    Wales weather forecast

    Headline:

    Wet and windy.

    Today:

    A rather grey start, with rain soon arriving from the west. Wet and windy thereafter, with persistent rain turning heavy at times. Feeling especially gusty over higher ground, with strong winds bringing a risk of coastal gales. Maximum temperature 19 °C.

    Tonight:

    Rain will gradually clear to the east with scattered showers to follow through this evening. Some dry, clear spells developing overnight, but remaining breezy for all. Minimum temperature 10 °C.

    Sunday:

    A bright day with blustery showers. Heavy, sometimes thundery downpours are expected throughout the day, interspersed with drier, sunnier spells. Feeling especially windy along the coast. Maximum temperature 19 °C.

    Outlook for Monday to Wednesday:

    Scattered showers continue, giving a distinctly autumnal feel to the new working week. Longer spells of rain are expected at times, but there will be some breaks to sunshine too.

    Updated:

    UK long range weather forecast

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