Trewithen (Cornwall) weather

Forecast days

Overcast changing to sunny intervals by lunchtime.
Sunrise iconSunrise:
Sunset iconSunset:
H UV
L Pollution

    7 day forecast for Trewithen

    Today (17 August 2026)
    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 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
    Chance of precipitation
    40%
    30%
    20%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature
    21°
    21°
    21°
    21°
    22°
    22°
    21°
    20°
    20°
    19°
    17°
    17°
    17°
    Feels like temperature (°C)
    20°
    20°
    20°
    20°
    20°
    20°
    19°
    18°
    18°
    17°
    17°
    17°
    16°
    Wind direction and speed
    WNW
    11
    WNW
    11
    NW
    11
    NW
    11
    WNW
    11
    WNW
    11
    WNW
    11
    WNW
    11
    WNW
    11
    WNW
    9
    WNW
    8
    W
    7
    W
    8
    Wind gust (mph)
    19
    19
    19
    20
    20
    21
    21
    21
    20
    17
    17
    17
    19
    Visibility
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    78%
    77%
    75%
    73%
    66%
    65%
    66%
    70%
    74%
    76%
    84%
    86%
    87%
    UV 5 6 6 5 5 3 2 1 1 1 - - -
    Tuesday (18 August 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 Cloudy Overcast Overcast Overcast Light rain Light rain Light rain Light rain Overcast Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Cloudy Cloudy Cloudy Light rain Light rain
    Chance of precipitation
    <5%
    <5%
    <5%
    10%
    10%
    30%
    50%
    80%
    70%
    60%
    50%
    40%
    30%
    20%
    10%
    10%
    10%
    10%
    20%
    20%
    20%
    30%
    60%
    60%
    Temperature (°C)
    17°
    17°
    17°
    18°
    18°
    18°
    18°
    18°
    19°
    19°
    20°
    20°
    21°
    21°
    21°
    22°
    21°
    21°
    20°
    19°
    19°
    18°
    18°
    18°
    Feels like temperature (°C)
    16°
    16°
    17°
    17°
    17°
    17°
    17°
    17°
    18°
    18°
    18°
    19°
    19°
    20°
    20°
    20°
    19°
    19°
    18°
    17°
    17°
    17°
    17°
    17°
    Wind direction and speed (mph)
    WNW
    8
    W
    8
    W
    8
    W
    8
    W
    9
    W
    9
    W
    10
    W
    11
    W
    11
    W
    11
    WNW
    13
    WNW
    13
    WNW
    13
    WNW
    12
    WNW
    11
    WNW
    13
    WNW
    11
    WNW
    11
    WNW
    11
    WNW
    11
    WNW
    10
    WNW
    9
    W
    9
    W
    9
    Wind gust (mph)
    17
    17
    17
    19
    19
    20
    21
    21
    22
    22
    22
    22
    22
    22
    21
    22
    22
    22
    22
    21
    20
    20
    20
    19
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    M
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    88%
    90%
    90%
    88%
    89%
    90%
    92%
    94%
    96%
    94%
    91%
    83%
    80%
    70%
    67%
    65%
    65%
    66%
    68%
    71%
    75%
    77%
    78%
    84%
    UV - - - - - - 1 1 1 2 2 4 5 6 6 5 3 2 1 1 1 - - -
    Wednesday (19 August 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 Light shower night Light shower night Partly cloudy night Light shower night Light shower night Light shower day Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Light shower night Light shower night Partly cloudy night Light shower night
    Chance of precipitation
    60%
    50%
    60%
    50%
    50%
    50%
    50%
    50%
    40%
    40%
    40%
    30%
    30%
    40%
    30%
    30%
    30%
    40%
    40%
    40%
    50%
    50%
    50%
    60%
    Temperature (°C)
    17°
    16°
    16°
    16°
    16°
    16°
    15°
    16°
    17°
    18°
    19°
    19°
    20°
    20°
    20°
    20°
    20°
    20°
    19°
    19°
    18°
    16°
    16°
    15°
    Feels like temperature (°C)
    16°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    17°
    17°
    17°
    17°
    17°
    17°
    16°
    16°
    16°
    16°
    16°
    15°
    15°
    15°
    14°
    Wind direction and speed (mph)
    W
    9
    W
    8
    W
    8
    W
    8
    W
    7
    W
    7
    W
    7
    W
    7
    W
    9
    W
    11
    WNW
    11
    WNW
    13
    W
    13
    W
    14
    W
    15
    W
    15
    W
    15
    W
    15
    W
    14
    W
    13
    W
    11
    WSW
    9
    WSW
    7
    WSW
    7
    Wind gust (mph)
    20
    20
    19
    20
    21
    20
    20
    21
    22
    25
    25
    26
    26
    28
    29
    29
    29
    28
    28
    26
    26
    25
    24
    25
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    Humidity
    88%
    90%
    91%
    91%
    92%
    91%
    91%
    90%
    86%
    76%
    68%
    65%
    58%
    55%
    54%
    54%
    55%
    55%
    59%
    60%
    67%
    76%
    80%
    82%
    UV - - - - - - 1 1 1 2 4 4 6 6 5 5 3 2 1 1 1 - - -
    Thursday (20 August 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 Light shower night Light shower night Light shower night Light shower night Light shower night Light shower day Light shower day Light shower day Light shower day 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 Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    70%
    70%
    70%
    70%
    70%
    70%
    70%
    70%
    70%
    80%
    70%
    60%
    50%
    50%
    50%
    50%
    50%
    50%
    40%
    40%
    50%
    50%
    40%
    40%
    Temperature (°C)
    15°
    15°
    15°
    14°
    14°
    14°
    14°
    14°
    15°
    17°
    18°
    19°
    19°
    20°
    19°
    19°
    19°
    19°
    18°
    18°
    17°
    15°
    15°
    14°
    Feels like temperature (°C)
    14°
    14°
    13°
    13°
    13°
    13°
    13°
    13°
    15°
    16°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    16°
    16°
    15°
    14°
    14°
    13°
    Wind direction and speed (mph)
    WSW
    7
    WSW
    7
    WSW
    8
    WSW
    8
    WSW
    7
    WSW
    7
    WSW
    7
    WSW
    7
    W
    7
    W
    9
    W
    9
    WNW
    10
    WNW
    11
    WNW
    11
    WNW
    11
    WNW
    11
    NW
    12
    WNW
    11
    NW
    11
    NW
    11
    NW
    9
    WNW
    8
    NW
    7
    WNW
    7
    Wind gust (mph)
    25
    24
    23
    23
    22
    21
    21
    21
    21
    22
    24
    24
    25
    25
    26
    25
    26
    25
    24
    22
    22
    21
    20
    20
    Visibility (description)
    E
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    VG
    VG
    Humidity
    84%
    84%
    86%
    88%
    90%
    91%
    91%
    90%
    86%
    82%
    78%
    71%
    67%
    64%
    63%
    64%
    63%
    66%
    68%
    68%
    73%
    81%
    84%
    85%
    UV - - - - - - 1 1 1 2 4 5 5 6 4 5 3 2 1 1 1 - - -
    Friday (21 August 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 Light shower night Light shower day Light shower day Light shower day Light shower day 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
    Chance of precipitation
    40%
    40%
    40%
    40%
    40%
    50%
    50%
    50%
    50%
    50%
    40%
    40%
    40%
    40%
    40%
    30%
    30%
    30%
    30%
    30%
    20%
    20%
    20%
    20%
    Temperature (°C)
    14°
    14°
    14°
    14°
    13°
    13°
    13°
    13°
    14°
    16°
    17°
    18°
    19°
    19°
    19°
    19°
    19°
    19°
    19°
    17°
    16°
    15°
    14°
    14°
    Feels like temperature (°C)
    13°
    14°
    13°
    13°
    13°
    13°
    12°
    12°
    14°
    15°
    15°
    16°
    17°
    17°
    17°
    17°
    17°
    17°
    16°
    15°
    14°
    13°
    13°
    13°
    Wind direction and speed (mph)
    WNW
    7
    NW
    6
    NW
    7
    WNW
    6
    NW
    5
    NW
    5
    NW
    5
    NW
    6
    NNW
    6
    NNW
    8
    NNW
    9
    NNW
    9
    NNW
    9
    NNW
    10
    NNW
    10
    NNW
    11
    NNW
    11
    NNW
    11
    NNW
    11
    N
    10
    N
    9
    N
    8
    NNW
    7
    N
    7
    Wind gust (mph)
    20
    19
    19
    19
    19
    19
    19
    20
    20
    20
    22
    22
    23
    23
    23
    23
    23
    24
    23
    23
    21
    19
    19
    18
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    E
    E
    E
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    87%
    86%
    89%
    91%
    91%
    91%
    91%
    91%
    87%
    82%
    75%
    67%
    62%
    59%
    58%
    58%
    57%
    57%
    59%
    63%
    68%
    75%
    79%
    81%
    UV - - - - - - 1 1 1 2 4 4 6 6 5 4 3 2 1 1 1 - - -
    Saturday (22 August 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 Clear night Clear night Sunny intervals Sunny intervals Sunny intervals Sunny day Clear night Clear night
    Chance of precipitation
    20%
    20%
    10%
    10%
    10%
    20%
    10%
    10%
    10%
    Temperature (°C)
    14°
    13°
    12°
    12°
    17°
    19°
    19°
    17°
    15°
    Feels like temperature (°C)
    13°
    12°
    11°
    11°
    15°
    17°
    17°
    15°
    13°
    Wind direction and speed (mph)
    N
    7
    N
    6
    N
    7
    NNE
    6
    NE
    10
    NNE
    9
    NNE
    10
    NNE
    11
    NNE
    9
    Wind gust (mph)
    18
    15
    14
    18
    20
    21
    21
    19
    12
    Visibility (description)
    VG
    VG
    VG
    G
    VG
    VG
    VG
    VG
    VG
    Humidity
    83%
    83%
    86%
    86%
    62%
    50%
    48%
    58%
    78%
    UV - - - 1 4 5 3 1 -
    Sunday (23 August 2026)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Clear night Sunny day Sunny day Sunny day Sunny day Clear night Clear night
    Chance of precipitation
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    Temperature (°C)
    13°
    12°
    12°
    17°
    20°
    20°
    18°
    14°
    Feels like temperature (°C)
    12°
    10°
    11°
    16°
    18°
    17°
    16°
    13°
    Wind direction and speed (mph)
    NNE
    9
    NNE
    9
    NE
    7
    ENE
    9
    ENE
    9
    NE
    9
    NNE
    9
    N
    7
    Wind gust (mph)
    11
    10
    15
    17
    17
    17
    15
    10
    Visibility (description)
    VG
    G
    G
    VG
    VG
    VG
    VG
    VG
    Humidity
    85%
    87%
    90%
    59%
    46%
    44%
    54%
    78%
    UV - - 1 4 6 3 1 -

    UK video forecast

    Trewithen weather map

    View the weather with our interactive map

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    South West England weather forecast

    Headline:

    Brightening up, with hazy sunshine for many. Rain possible overnight.

    Today:

    Low cloud, with showery outbreaks of rain and drizzle clearing to brighter skies during the morning, with plenty of hazy spells of sunshine developing for the afternoon. Feeling warm and rather muggy, with light winds. Maximum temperature 25 °C.

    Tonight:

    A fine evening to come. Cloud increasing overnight from the north, with the promise of some rain moving in during the early hours, which may be heavy in places. Minimum temperature 15 °C.

    Tuesday:

    A cloudy and wet start to the day as rain slowly clears southwards during the morning. Drier and brighter for the afternoon, with hazy spells of sunshine for many. Maximum temperature 24 °C.

    Outlook for Wednesday to Friday:

    Sunny spells and showers expected throughout this period. Some of the showers will be heavy and times, with the risk of hail and thunder. A fresh feel for all.

    Updated:

    UK long range weather forecast