Llanrumney (Cardiff) weather

Forecast days

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

    7 day forecast for Llanrumney

    Today (18 September 2026)
    Time
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Light rain Light rain Light rain Light rain Light rain Overcast Light shower night Light shower night Light shower night
    Chance of precipitation
    90%
    80%
    70%
    50%
    60%
    50%
    60%
    60%
    70%
    Temperature
    16°
    16°
    16°
    17°
    16°
    16°
    17°
    17°
    17°
    Feels like temperature (°C)
    14°
    14°
    14°
    14°
    14°
    14°
    15°
    15°
    15°
    Wind direction and speed
    WSW
    15
    WSW
    14
    WSW
    14
    WSW
    14
    WSW
    14
    WSW
    14
    SW
    14
    SW
    14
    SW
    13
    Wind gust (mph)
    31
    28
    30
    30
    30
    30
    30
    30
    30
    Visibility
    G
    G
    M
    M
    M
    M
    M
    G
    G
    Humidity
    74%
    77%
    79%
    81%
    83%
    86%
    89%
    90%
    90%
    UV 1 1 1 1 1 - - - -
    Saturday (19 September 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 Light shower night Partly cloudy night Partly cloudy night Cloudy Light shower night Light rain Light rain Light rain Light rain Light rain Light rain Light shower day Light shower day Light shower day Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Cloudy Cloudy Cloudy
    Chance of precipitation
    50%
    40%
    30%
    40%
    50%
    60%
    60%
    80%
    80%
    80%
    80%
    80%
    70%
    50%
    50%
    20%
    20%
    20%
    20%
    20%
    20%
    20%
    30%
    20%
    Temperature (°C)
    17°
    16°
    16°
    16°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    18°
    18°
    19°
    20°
    20°
    19°
    19°
    18°
    17°
    17°
    17°
    17°
    16°
    Feels like temperature (°C)
    15°
    14°
    14°
    14°
    15°
    15°
    15°
    15°
    14°
    15°
    15°
    16°
    16°
    17°
    17°
    17°
    16°
    16°
    17°
    16°
    16°
    16°
    16°
    15°
    Wind direction and speed (mph)
    WSW
    13
    WSW
    14
    WSW
    14
    WSW
    14
    WSW
    14
    WSW
    14
    SW
    14
    WSW
    14
    WSW
    15
    WSW
    16
    WSW
    16
    WSW
    16
    WSW
    16
    WSW
    16
    WSW
    17
    WSW
    16
    W
    15
    W
    13
    WSW
    11
    WSW
    10
    WSW
    9
    WSW
    8
    WSW
    8
    WSW
    8
    Wind gust (mph)
    29
    29
    30
    30
    30
    29
    29
    30
    30
    30
    31
    32
    32
    31
    32
    31
    30
    27
    24
    22
    21
    22
    22
    22
    Visibility (description)
    M
    G
    G
    G
    G
    G
    M
    M
    M
    M
    M
    M
    M
    M
    M
    G
    G
    G
    G
    G
    G
    G
    G
    G
    Humidity
    89%
    87%
    86%
    86%
    85%
    85%
    86%
    87%
    90%
    91%
    92%
    91%
    88%
    84%
    81%
    77%
    74%
    75%
    78%
    83%
    85%
    85%
    85%
    85%
    UV - - - - - - 1 1 1 1 1 2 2 3 3 2 2 1 1 1 - - - -
    Sunday (20 September 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 Cloudy Cloudy Cloudy Cloudy Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Sunny day Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny day Sunny intervals Sunny day Sunny day Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    20%
    20%
    10%
    10%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    16°
    16°
    15°
    15°
    15°
    14°
    14°
    13°
    14°
    15°
    16°
    17°
    18°
    19°
    19°
    20°
    19°
    19°
    18°
    17°
    16°
    15°
    15°
    15°
    Feels like temperature (°C)
    15°
    15°
    14°
    14°
    14°
    13°
    13°
    12°
    13°
    14°
    16°
    16°
    17°
    17°
    18°
    18°
    18°
    17°
    17°
    16°
    15°
    15°
    15°
    15°
    Wind direction and speed (mph)
    W
    8
    W
    7
    W
    7
    W
    7
    W
    7
    W
    6
    W
    6
    W
    5
    W
    5
    W
    6
    W
    6
    WNW
    7
    W
    6
    W
    7
    W
    7
    W
    7
    W
    7
    W
    7
    W
    7
    W
    7
    W
    6
    W
    5
    WNW
    3
    WNW
    3
    Wind gust (mph)
    23
    22
    21
    19
    19
    18
    17
    16
    15
    16
    16
    17
    17
    17
    17
    17
    17
    16
    14
    13
    11
    9
    9
    8
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    G
    Humidity
    85%
    86%
    86%
    86%
    86%
    86%
    86%
    86%
    84%
    76%
    68%
    63%
    58%
    57%
    57%
    57%
    57%
    59%
    66%
    73%
    78%
    81%
    84%
    83%
    UV - - - - - - 1 1 1 1 2 3 4 4 3 2 2 1 1 1 - - - -
    Monday (21 September 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 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 day Sunny day Sunny day Clear night Clear night Clear night Clear night Mist
    Chance of precipitation
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    15°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    15°
    16°
    17°
    18°
    20°
    20°
    21°
    21°
    21°
    21°
    20°
    19°
    17°
    17°
    16°
    15°
    Feels like temperature (°C)
    15°
    14°
    14°
    13°
    14°
    14°
    14°
    14°
    15°
    16°
    17°
    18°
    19°
    20°
    20°
    21°
    21°
    21°
    20°
    19°
    17°
    17°
    16°
    15°
    Wind direction and speed (mph)
    WNW
    3
    WNW
    3
    WNW
    3
    NW
    4
    WNW
    4
    WNW
    4
    WNW
    4
    WNW
    4
    WNW
    4
    SW
    4
    SW
    4
    SW
    5
    WSW
    6
    WSW
    6
    WSW
    7
    WSW
    7
    WSW
    7
    WSW
    6
    W
    6
    W
    5
    W
    4
    WNW
    4
    WNW
    3
    WNW
    3
    Wind gust (mph)
    8
    8
    8
    8
    8
    9
    9
    10
    11
    11
    12
    14
    14
    15
    15
    14
    13
    13
    11
    9
    9
    8
    7
    7
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    M
    M
    Humidity
    84%
    85%
    87%
    88%
    88%
    89%
    91%
    91%
    86%
    84%
    82%
    77%
    75%
    73%
    70%
    68%
    68%
    68%
    73%
    82%
    86%
    88%
    91%
    92%
    UV - - - - - - 1 1 1 1 2 3 4 4 3 2 2 1 1 1 - - - -
    Tuesday (22 September 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 Mist Mist Mist Mist Mist Mist Mist Mist Mist Sunny intervals Sunny intervals Sunny intervals Sunny day Sunny intervals Sunny intervals Sunny day Sunny day Sunny day Sunny day Clear night Clear 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%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    14°
    14°
    14°
    13°
    13°
    13°
    13°
    13°
    14°
    16°
    17°
    18°
    19°
    20°
    21°
    22°
    23°
    22°
    21°
    19°
    18°
    17°
    17°
    16°
    Feels like temperature (°C)
    15°
    14°
    14°
    13°
    13°
    13°
    13°
    14°
    15°
    16°
    17°
    19°
    20°
    21°
    22°
    23°
    23°
    23°
    22°
    19°
    18°
    17°
    17°
    17°
    Wind direction and speed (mph)
    NW
    2
    NW
    2
    NNW
    2
    NNW
    3
    NNW
    3
    N
    3
    N
    3
    NE
    2
    NE
    2
    SSE
    2
    S
    2
    S
    2
    S
    3
    S
    3
    S
    3
    S
    3
    SSW
    4
    SW
    4
    SW
    4
    SW
    4
    WSW
    4
    WSW
    4
    WSW
    3
    WSW
    3
    Wind gust (mph)
    7
    7
    7
    8
    8
    8
    9
    9
    9
    9
    9
    9
    11
    12
    12
    12
    12
    10
    10
    11
    12
    11
    11
    10
    Visibility (description)
    M
    M
    P
    P
    P
    P
    P
    P
    P
    P
    M
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    Humidity
    93%
    93%
    94%
    94%
    94%
    95%
    95%
    96%
    95%
    92%
    88%
    84%
    79%
    74%
    68%
    64%
    63%
    63%
    70%
    77%
    82%
    84%
    86%
    88%
    UV - - - - - - 1 1 1 1 2 3 3 4 3 2 2 1 1 1 - - - -
    Wednesday (23 September 2026)
    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 Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night
    Chance of precipitation
    <5%
    10%
    10%
    10%
    10%
    10%
    10%
    <5%
    <5%
    Temperature (°C)
    16°
    16°
    15°
    14°
    16°
    19°
    19°
    17°
    15°
    Feels like temperature (°C)
    16°
    17°
    15°
    14°
    16°
    18°
    18°
    16°
    14°
    Wind direction and speed (mph)
    WSW
    4
    W
    4
    WNW
    5
    NNW
    5
    N
    7
    N
    6
    N
    6
    N
    6
    NE
    5
    Wind gust (mph)
    11
    13
    13
    17
    17
    15
    15
    12
    10
    Visibility (description)
    G
    G
    M
    M
    G
    VG
    VG
    VG
    VG
    Humidity
    89%
    91%
    92%
    91%
    76%
    60%
    56%
    66%
    74%
    UV - - - 1 2 4 1 1 -
    Thursday (24 September 2026)
    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 Sunny intervals Sunny intervals Partly cloudy night Cloudy
    Chance of precipitation
    <5%
    <5%
    <5%
    10%
    10%
    10%
    20%
    20%
    Temperature (°C)
    14°
    13°
    13°
    16°
    19°
    20°
    18°
    16°
    Feels like temperature (°C)
    14°
    12°
    12°
    15°
    17°
    18°
    17°
    15°
    Wind direction and speed (mph)
    E
    5
    ESE
    4
    SE
    5
    S
    7
    SSW
    9
    SW
    10
    SW
    8
    SW
    8
    Wind gust (mph)
    10
    10
    14
    19
    21
    20
    17
    16
    Visibility (description)
    G
    M
    M
    VG
    VG
    VG
    G
    G
    Humidity
    80%
    85%
    88%
    79%
    73%
    70%
    76%
    85%
    UV - - 1 2 3 1 1 -

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    Wales weather forecast

    Headline:

    A bight start, but wet and windy weather spreading east.

    Today:

    Dry and bright at first for all, but turning increasingly cloudy through the morning. Outbreaks of rain then spread east during the afternoon, turning heavy for a time. Becoming rather windy with gales along northwestern coasts. Maximum temperature 17 °C.

    Tonight:

    A rather cloudy night follows with the rain easing and turning dry for a time. Remaining rather windy, keeping the temperatures from falling away. Minimum temperature 13 °C.

    Saturday:

    A rather cloudy day for all on Saturday with a little patchy rain at times. Winds easing and turning drier towards the evening. Maximum temperature 19 °C.

    Outlook for Sunday to Tuesday:

    Dry but rather cloudy on Sunday with some overnight rain. Rather cloudy on Monday and Tuesday with some sunny spells and lighter winds and turning a little warmer.

    Updated:

    UK long range weather forecast