Arenig Fawr (Gwynedd) weather

Forecast days

Fog changing to heavy rain by lunchtime.
Sunrise iconSunrise:
Sunset iconSunset:
L UV
L Pollution
No pollen data.

    7 day forecast for Arenig Fawr

    Today (21 February 2026)
    Time
    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 Heavy rain Light rain Light rain Fog Fog Fog Fog Fog Fog Fog Light rain Light rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain
    Chance of precipitation
    ≥95%
    80%
    60%
    30%
    30%
    20%
    10%
    10%
    10%
    30%
    60%
    80%
    90%
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    Temperature
    Feels like temperature (°C)
    -3°
    -3°
    -3°
    -3°
    -3°
    -3°
    -3°
    -3°
    -3°
    -2°
    -1°
    -1°
    -1°
    -1°
    -1°
    -1°
    -1°
    -1°
    Wind direction and speed
    WSW
    31
    WSW
    33
    WSW
    39
    WSW
    40
    WSW
    39
    WSW
    36
    WSW
    34
    WSW
    33
    WSW
    34
    WSW
    34
    SW
    28
    SW
    30
    SW
    29
    SW
    29
    SW
    31
    SW
    34
    SW
    37
    SW
    38
    WSW
    41
    SW
    44
    WSW
    43
    WSW
    41
    WSW
    39
    Wind gust (mph)
    34
    34
    43
    44
    42
    39
    38
    36
    37
    37
    28
    33
    30
    31
    33
    34
    40
    42
    45
    48
    47
    45
    43
    Visibility
    P
    VP
    VP
    VP
    VP
    VP
    VP
    P
    P
    VP
    P
    VP
    VP
    VP
    VP
    VP
    VP
    VP
    VP
    VP
    VP
    VP
    VP
    Humidity
    98%
    100%
    100%
    100%
    100%
    100%
    100%
    100%
    99%
    99%
    100%
    100%
    100%
    99%
    100%
    100%
    100%
    100%
    100%
    100%
    100%
    100%
    100%
    UV - - - - - - 1 1 1 1 1 1 1 1 1 1 1 - - - - - -
    Sunday (22 February 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 rain Light rain Light rain Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog
    Chance of precipitation
    90%
    80%
    60%
    50%
    30%
    20%
    10%
    10%
    20%
    20%
    20%
    10%
    <5%
    10%
    10%
    20%
    10%
    40%
    50%
    50%
    20%
    30%
    20%
    20%
    Temperature (°C)
    Feels like temperature (°C)
    -1°
    -1°
    -1°
    -1°
    -2°
    -2°
    -3°
    -3°
    -3°
    -3°
    -3°
    -3°
    -2°
    -2°
    -2°
    -3°
    -3°
    -3°
    -3°
    -3°
    -3°
    -3°
    -3°
    -3°
    Wind direction and speed (mph)
    WSW
    38
    WSW
    37
    WSW
    32
    WSW
    32
    WSW
    31
    WSW
    29
    WSW
    28
    WSW
    29
    WSW
    30
    WSW
    33
    WSW
    34
    WSW
    35
    WSW
    35
    WSW
    35
    WSW
    38
    WSW
    37
    WSW
    37
    WSW
    37
    WSW
    37
    WSW
    38
    WSW
    39
    WSW
    38
    WSW
    38
    WSW
    38
    Wind gust (mph)
    42
    41
    36
    35
    34
    32
    31
    31
    33
    36
    38
    39
    39
    38
    42
    41
    40
    40
    41
    42
    43
    42
    42
    42
    Visibility (description)
    VP
    VP
    VP
    P
    VP
    VP
    P
    P
    P
    P
    P
    P
    P
    M
    M
    M
    P
    P
    P
    P
    P
    P
    P
    P
    Humidity
    100%
    100%
    100%
    100%
    100%
    99%
    98%
    98%
    98%
    97%
    96%
    94%
    93%
    91%
    90%
    91%
    92%
    94%
    96%
    96%
    96%
    96%
    95%
    94%
    UV - - - - - - - 1 1 1 1 1 1 1 1 1 1 1 - - - - - -
    Monday (23 February 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 Fog Fog Fog Fog Fog Fog Fog Fog Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain
    Chance of precipitation
    20%
    20%
    20%
    20%
    30%
    30%
    30%
    50%
    50%
    60%
    60%
    80%
    90%
    90%
    80%
    80%
    90%
    80%
    80%
    80%
    70%
    70%
    60%
    70%
    Temperature (°C)
    Feels like temperature (°C)
    -4°
    -4°
    -3°
    -3°
    -3°
    -3°
    -3°
    -3°
    -3°
    -2°
    -2°
    -2°
    -1°
    -1°
    -1°
    -1°
    -1°
    -1°
    -1°
    Wind direction and speed (mph)
    WSW
    38
    WSW
    38
    WSW
    34
    WSW
    34
    WSW
    34
    WSW
    33
    WSW
    33
    WSW
    32
    WSW
    31
    WSW
    30
    WSW
    30
    WSW
    29
    WSW
    29
    SW
    28
    SW
    31
    SW
    32
    SW
    31
    SW
    31
    SW
    30
    SW
    30
    SW
    32
    SW
    33
    SW
    34
    SW
    35
    Wind gust (mph)
    42
    42
    37
    37
    38
    37
    36
    35
    34
    33
    30
    30
    32
    29
    34
    35
    34
    34
    33
    33
    36
    36
    37
    39
    Visibility (description)
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    VP
    VP
    VP
    VP
    VP
    P
    VP
    VP
    Humidity
    94%
    94%
    94%
    95%
    95%
    96%
    96%
    97%
    97%
    96%
    96%
    96%
    96%
    97%
    98%
    99%
    100%
    100%
    100%
    100%
    100%
    100%
    100%
    99%
    UV - - - - - - - 1 1 1 1 1 1 1 1 1 1 1 - - - - - -
    Tuesday (24 February 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 rain Light rain Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Mist Fog Fog Fog Fog Fog Fog
    Chance of precipitation
    60%
    50%
    40%
    30%
    20%
    20%
    20%
    20%
    20%
    20%
    20%
    20%
    10%
    20%
    20%
    10%
    20%
    10%
    20%
    20%
    20%
    30%
    30%
    30%
    Temperature (°C)
    Feels like temperature (°C)
    -1°
    -1°
    -1°
    -1°
    -1°
    -1°
    -1°
    -1°
    -1°
    -1°
    -1°
    Wind direction and speed (mph)
    SW
    37
    SW
    39
    SW
    35
    SW
    35
    SW
    34
    SW
    33
    SSW
    30
    SSW
    28
    SSW
    28
    SSW
    28
    SSW
    28
    SSW
    28
    SSW
    28
    SSW
    32
    SSW
    31
    SSW
    29
    SSW
    28
    SSW
    27
    SSW
    25
    S
    25
    S
    25
    S
    25
    S
    25
    SSW
    25
    Wind gust (mph)
    41
    43
    39
    38
    38
    36
    33
    31
    30
    31
    31
    29
    30
    35
    34
    32
    31
    30
    28
    27
    28
    28
    28
    28
    Visibility (description)
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    M
    P
    P
    M
    M
    P
    M
    M
    M
    M
    P
    P
    Humidity
    99%
    99%
    97%
    97%
    96%
    96%
    96%
    97%
    95%
    95%
    93%
    92%
    88%
    86%
    86%
    85%
    85%
    89%
    89%
    89%
    90%
    91%
    93%
    93%
    UV - - - - - - - 1 1 1 1 1 1 1 1 1 1 1 - - - - - -
    Wednesday (25 February 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 Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Light shower day Light shower day Light shower day Fog Fog Fog Fog Fog Fog Fog
    Chance of precipitation
    30%
    30%
    40%
    40%
    40%
    40%
    40%
    30%
    30%
    30%
    30%
    40%
    40%
    50%
    60%
    60%
    50%
    40%
    40%
    30%
    30%
    30%
    40%
    40%
    Temperature (°C)
    Feels like temperature (°C)
    -1°
    -1°
    -1°
    Wind direction and speed (mph)
    SSW
    24
    S
    22
    S
    21
    S
    21
    S
    20
    S
    20
    S
    19
    S
    18
    S
    16
    S
    17
    S
    18
    SSW
    19
    SSW
    20
    SSW
    20
    SSW
    21
    SSW
    21
    SSW
    20
    SSW
    20
    SW
    19
    SW
    19
    SW
    26
    SW
    27
    SW
    29
    SW
    30
    Wind gust (mph)
    27
    22
    23
    23
    22
    21
    20
    20
    17
    19
    19
    20
    20
    21
    24
    23
    22
    22
    21
    21
    29
    30
    32
    33
    Visibility (description)
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    M
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    Humidity
    94%
    95%
    96%
    96%
    96%
    96%
    96%
    96%
    96%
    95%
    94%
    92%
    91%
    91%
    91%
    92%
    92%
    93%
    95%
    96%
    96%
    97%
    97%
    96%
    UV - - - - - - - 1 1 1 1 1 1 1 1 1 1 1 - - - - - -
    Thursday (26 February 2026)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Fog Fog Drizzle Light rain Light shower day Light shower day Light shower night Fog
    Chance of precipitation
    30%
    40%
    50%
    70%
    70%
    60%
    50%
    50%
    Temperature (°C)
    Feels like temperature (°C)
    -2°
    -2°
    -3°
    -3°
    -3°
    -3°
    -4°
    -4°
    Wind direction and speed (mph)
    SW
    29
    SW
    25
    SW
    31
    SW
    35
    SW
    44
    SW
    43
    SW
    40
    SW
    38
    Wind gust (mph)
    32
    29
    33
    39
    48
    48
    44
    42
    Visibility (description)
    VP
    P
    P
    P
    M
    M
    M
    M
    Humidity
    97%
    97%
    96%
    95%
    92%
    93%
    93%
    93%
    UV - - - 1 1 1 - -
    Friday (27 February 2026)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Fog Cloudy Fog Cloudy Mist Light snow shower day Fog Mist
    Chance of precipitation
    50%
    40%
    40%
    40%
    50%
    50%
    50%
    40%
    Temperature (°C)
    Feels like temperature (°C)
    -4°
    -4°
    -4°
    -4°
    -3°
    -3°
    -4°
    -5°
    Wind direction and speed (mph)
    SW
    35
    WSW
    32
    SW
    29
    SW
    29
    SW
    33
    SW
    31
    SW
    24
    WSW
    25
    Wind gust (mph)
    38
    36
    32
    31
    36
    35
    25
    28
    Visibility (description)
    P
    P
    M
    M
    M
    M
    M
    M
    Humidity
    92%
    92%
    92%
    90%
    84%
    82%
    88%
    91%
    UV - - - 1 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 unsettled, but some dry or sunny spells possible Sunday.

    This Evening and Tonight:

    Any showers gradually easing this evening. Cloudier again overnight with a few spots of drizzle become fairly extensive before clearing to the east later in the night, leaving most places cloudy. Breezy with temperatures holding up. Minimum temperature 8 °C.

    Saturday:

    Cloudy with patchy drizzle through the morning and occasional brighter interludes. More rain arriving into the afternoon, this turning heavy and persistent over high ground. Windy and feeling very mild. Maximum temperature 13 °C.

    Outlook for Sunday to Tuesday:

    Cloud and rain soon clearing to brighter conditions on Sunday. Turning unsettled again from Monday with cloud and rain arriving. Cloudy on Tuesday but remaining mild throughout.

    Updated:

    UK long range weather forecast

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