St Dennis (Cornwall) weather

Forecast days

Partly cloudy changing to sunny intervals by late morning.
Sunrise iconSunrise:
Sunset iconSunset:
M UV
L Pollution
No pollen data.

    7 day forecast for St Dennis

    Today (8 October 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 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 Cloudy Overcast Overcast Light rain Light rain Light rain Light rain Light rain Light rain
    Chance of precipitation
    <5%
    <5%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    20%
    60%
    80%
    90%
    80%
    80%
    70%
    Temperature
    10°
    10°
    10°
    10°
    10°
    9°
    9°
    9°
    10°
    12°
    12°
    13°
    13°
    13°
    13°
    13°
    13°
    12°
    12°
    11°
    11°
    12°
    12°
    Feels like temperature (°C)
    8°
    8°
    8°
    8°
    7°
    7°
    6°
    7°
    8°
    9°
    9°
    10°
    10°
    11°
    11°
    11°
    11°
    10°
    10°
    10°
    9°
    9°
    10°
    Wind direction and speed
    NNW
    11
    NNW
    11
    NNW
    11
    NW
    11
    NW
    11
    NW
    10
    NW
    10
    NW
    9
    NW
    10
    NW
    13
    NW
    14
    NW
    14
    NW
    14
    NW
    13
    NW
    11
    WNW
    10
    W
    9
    WSW
    9
    SW
    9
    SW
    9
    SW
    9
    SW
    11
    WSW
    13
    Wind gust (mph)
    27
    26
    26
    26
    24
    24
    23
    23
    24
    24
    23
    22
    22
    21
    20
    19
    19
    20
    21
    23
    26
    29
    31
    Visibility
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    M
    M
    P
    P
    Humidity
    70%
    68%
    68%
    70%
    72%
    70%
    71%
    70%
    65%
    62%
    56%
    55%
    55%
    55%
    56%
    63%
    66%
    74%
    80%
    92%
    96%
    96%
    96%
    UV - - - - - - 1 1 1 2 2 3 3 2 2 1 1 1 - - - - -
    Friday (9 October 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 Mist Mist Mist Mist Mist Mist Mist Overcast Mist Light rain Light rain Light rain Light rain Light shower day 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
    50%
    40%
    20%
    10%
    10%
    10%
    10%
    10%
    20%
    40%
    60%
    80%
    ≥95%
    90%
    50%
    10%
    <5%
    10%
    <5%
    <5%
    <5%
    <5%
    10%
    20%
    Temperature (°C)
    13°
    13°
    13°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    15°
    15°
    15°
    15°
    15°
    15°
    14°
    14°
    13°
    13°
    12°
    12°
    12°
    12°
    Feels like temperature (°C)
    10°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    12°
    12°
    12°
    12°
    11°
    11°
    11°
    10°
    10°
    9°
    9°
    9°
    9°
    Wind direction and speed (mph)
    WSW
    14
    WSW
    16
    W
    16
    W
    17
    W
    18
    W
    18
    W
    18
    WSW
    18
    WSW
    18
    WSW
    19
    WSW
    20
    WSW
    21
    WSW
    21
    W
    20
    WNW
    18
    WNW
    18
    WNW
    18
    WNW
    18
    WNW
    17
    WNW
    15
    WNW
    15
    WNW
    15
    WNW
    15
    WNW
    14
    Wind gust (mph)
    33
    32
    33
    33
    33
    33
    34
    34
    36
    37
    38
    39
    40
    38
    35
    34
    34
    33
    32
    32
    31
    31
    30
    30
    Visibility (description)
    P
    P
    P
    P
    P
    P
    P
    M
    M
    M
    M
    P
    P
    P
    M
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    96%
    95%
    94%
    94%
    94%
    93%
    93%
    93%
    92%
    91%
    91%
    93%
    95%
    96%
    93%
    82%
    73%
    71%
    72%
    74%
    72%
    71%
    70%
    68%
    UV - - - - - - - 1 1 1 1 1 1 1 2 2 1 1 1 - - - - -
    Saturday (10 October 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 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 Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    30%
    20%
    20%
    20%
    20%
    30%
    40%
    40%
    40%
    40%
    40%
    30%
    30%
    20%
    20%
    20%
    10%
    10%
    20%
    30%
    30%
    30%
    20%
    20%
    Temperature (°C)
    12°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    12°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    12°
    11°
    11°
    11°
    11°
    11°
    Feels like temperature (°C)
    9°
    9°
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    9°
    9°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    9°
    9°
    9°
    9°
    9°
    Wind direction and speed (mph)
    WNW
    14
    WNW
    14
    WNW
    14
    WNW
    13
    WNW
    13
    WNW
    13
    WNW
    13
    WNW
    13
    WNW
    11
    WNW
    13
    WNW
    14
    WNW
    15
    WNW
    16
    WNW
    17
    WNW
    17
    WNW
    16
    WNW
    16
    WNW
    15
    WNW
    13
    WNW
    11
    WNW
    10
    WNW
    9
    WNW
    9
    WNW
    9
    Wind gust (mph)
    30
    29
    29
    29
    28
    28
    27
    27
    28
    29
    30
    31
    31
    31
    31
    30
    30
    28
    26
    26
    24
    23
    23
    22
    Visibility (description)
    VG
    G
    G
    VG
    VG
    VG
    VG
    G
    G
    G
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    69%
    71%
    69%
    69%
    68%
    67%
    70%
    70%
    71%
    68%
    66%
    65%
    59%
    59%
    59%
    60%
    64%
    65%
    66%
    69%
    72%
    73%
    74%
    74%
    UV - - - - - - - 1 1 1 2 2 2 3 2 2 1 1 1 - - - - -
    Sunday (11 October 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 Cloudy 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 Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    10%
    10%
    10%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    Temperature (°C)
    11°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    12°
    12°
    13°
    14°
    14°
    14°
    14°
    14°
    13°
    12°
    11°
    11°
    11°
    11°
    Feels like temperature (°C)
    9°
    9°
    9°
    9°
    9°
    9°
    9°
    9°
    9°
    10°
    11°
    12°
    12°
    13°
    13°
    13°
    13°
    13°
    12°
    11°
    11°
    10°
    10°
    10°
    Wind direction and speed (mph)
    WNW
    8
    WNW
    7
    WNW
    7
    WNW
    7
    WNW
    7
    WNW
    6
    WNW
    5
    W
    4
    W
    4
    W
    4
    WNW
    4
    WNW
    5
    WNW
    5
    WNW
    5
    WNW
    6
    W
    6
    W
    5
    WSW
    6
    SW
    5
    S
    5
    SSE
    5
    SE
    7
    SE
    8
    SE
    8
    Wind gust (mph)
    20
    20
    19
    18
    18
    17
    16
    15
    14
    13
    13
    13
    13
    12
    12
    12
    12
    12
    11
    12
    14
    16
    18
    18
    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
    76%
    75%
    76%
    76%
    76%
    78%
    78%
    80%
    79%
    76%
    70%
    64%
    61%
    58%
    57%
    57%
    59%
    63%
    71%
    77%
    79%
    79%
    78%
    79%
    UV - - - - - - - 1 1 1 1 2 2 2 2 2 1 1 1 - - - - -
    Monday (12 October 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 Cloudy Cloudy Cloudy Cloudy Cloudy Mist Mist Mist Mist Mist Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Drizzle Drizzle Drizzle Drizzle Drizzle
    Chance of precipitation
    10%
    10%
    20%
    30%
    30%
    40%
    40%
    40%
    40%
    40%
    50%
    50%
    60%
    60%
    60%
    60%
    50%
    50%
    50%
    50%
    40%
    40%
    40%
    40%
    Temperature (°C)
    11°
    11°
    11°
    11°
    12°
    12°
    13°
    13°
    12°
    13°
    14°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    Feels like temperature (°C)
    9°
    9°
    9°
    9°
    9°
    10°
    10°
    10°
    10°
    11°
    11°
    12°
    12°
    12°
    12°
    13°
    12°
    12°
    12°
    12°
    12°
    13°
    13°
    13°
    Wind direction and speed (mph)
    SSE
    9
    SSE
    9
    SSE
    11
    SSE
    11
    SSE
    13
    SSE
    13
    SSE
    13
    SSE
    14
    SSE
    14
    SSE
    15
    SSE
    15
    SSE
    17
    SSE
    17
    SSE
    18
    SSE
    17
    SSE
    17
    SSE
    17
    SSE
    17
    SSE
    16
    SSE
    15
    SSE
    15
    S
    15
    S
    15
    S
    15
    Wind gust (mph)
    20
    21
    22
    22
    23
    24
    25
    26
    27
    29
    30
    31
    31
    32
    31
    31
    31
    30
    29
    29
    28
    28
    28
    27
    Visibility (description)
    VG
    VG
    VG
    G
    G
    M
    M
    P
    P
    M
    M
    M
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    Humidity
    79%
    82%
    82%
    84%
    86%
    87%
    87%
    88%
    89%
    89%
    89%
    91%
    91%
    91%
    92%
    93%
    94%
    95%
    95%
    96%
    95%
    96%
    96%
    96%
    UV - - - - - - - 1 1 1 1 1 1 1 1 1 1 1 1 - - - - -
    Tuesday (13 October 2026)
    Time
    00:00
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Overcast Light rain Light rain Light rain Mist Sunny intervals Mist Fog Mist
    Chance of precipitation
    40%
    60%
    50%
    60%
    50%
    30%
    20%
    20%
    20%
    Temperature (°C)
    15°
    15°
    15°
    15°
    16°
    16°
    16°
    13°
    13°
    Feels like temperature (°C)
    13°
    13°
    13°
    13°
    14°
    14°
    14°
    12°
    11°
    Wind direction and speed (mph)
    S
    15
    S
    15
    SSW
    15
    SSW
    13
    SW
    13
    WSW
    14
    W
    13
    WSW
    9
    WSW
    9
    Wind gust (mph)
    27
    24
    23
    23
    24
    23
    20
    15
    16
    Visibility (description)
    P
    VP
    P
    VP
    P
    M
    G
    P
    P
    Humidity
    96%
    96%
    96%
    96%
    96%
    92%
    87%
    91%
    93%
    UV - - - 1 1 2 1 - -
    Wednesday (14 October 2026)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Fog Mist Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Cloudy
    Chance of precipitation
    10%
    20%
    20%
    30%
    30%
    20%
    20%
    20%
    Temperature (°C)
    13°
    12°
    13°
    14°
    16°
    15°
    13°
    12°
    Feels like temperature (°C)
    11°
    11°
    11°
    12°
    13°
    13°
    11°
    10°
    Wind direction and speed (mph)
    WSW
    9
    WSW
    9
    WSW
    10
    WSW
    11
    W
    13
    W
    11
    W
    11
    W
    11
    Wind gust (mph)
    17
    17
    19
    26
    26
    23
    19
    21
    Visibility (description)
    P
    VP
    P
    G
    G
    G
    G
    M
    Humidity
    92%
    92%
    91%
    86%
    77%
    75%
    85%
    90%
    UV - - 1 1 2 1 - -

    UK video forecast

    St Dennis weather map

    View the weather with our interactive map

    Loading map...
    Flood warnings icon
    in force for England
    in force for England

    Flood warnings may be in force for England

    South West England weather forecast

    Headline:

    Autumnal sunshine, with cloud and rain later.

    Today:

    A chilly but bright start. Turning cloudy into the afternoon from the west, with this thickening before the rain arriving into the evening. Feeling pleasant in the sunshine and light winds. Maximum temperature 16 °C.

    Tonight:

    Cloudy with outbreaks of mostly light rain, continuing into the early hours of Friday. Feeling much milder than last night. Minimum temperature 8 °C.

    Friday:

    Rain with blustery winds before clearing into the evening with winds easing. A few brighter spells on offer for the remainder of the day. Maximum temperature 16 °C.

    Outlook for Saturday to Monday:

    Scattered showers continuing through Saturday, easing into Sunday alongside winds with sunny spells in-between. Cloud building through Sunday with rain to follow in the evening and into Monday.

    Updated:

    UK long range weather forecast