St. Helena Is. (St Helena - Ascension and Tristan Da Cunha) weather

Forecast days

Overcast.
Sunrise iconSunrise:
Sunset iconSunset:
VH UV
No pollution data.
No pollen data.

    7 day forecast for St. Helena Is.

    Today (3 September 2025)
    Time
    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 Overcast Sunny intervals Overcast Overcast Overcast Overcast Overcast Overcast Overcast Cloudy
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature
    16°
    16°
    16°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    Feels like temperature (°C)
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    13°
    13°
    13°
    13°
    Wind direction and speed
    SE
    15
    SE
    15
    SE
    16
    SE
    16
    SE
    17
    SE
    17
    SE
    17
    SE
    19
    SE
    19
    SE
    19
    SE
    19
    Wind gust (mph)
    21
    21
    22
    22
    23
    24
    25
    26
    26
    26
    26
    Visibility
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    VG
    VG
    Humidity
    81%
    79%
    79%
    80%
    81%
    83%
    83%
    84%
    84%
    84%
    84%
    UV 8 6 3 2 1 1 - - - - -
    Thursday (4 September 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 Overcast Partly cloudy night Partly cloudy night Partly cloudy night Overcast Partly cloudy night Overcast Overcast Overcast Overcast Overcast Overcast Overcast Sunny intervals Sunny intervals Sunny intervals Sunny intervals Overcast Overcast Overcast Overcast Overcast Partly cloudy night Cloudy
    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)
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    16°
    16°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    Feels like temperature (°C)
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    Wind direction and speed (mph)
    SE
    19
    SE
    19
    SE
    19
    SE
    19
    SE
    20
    SE
    20
    SE
    21
    SE
    20
    SE
    20
    SE
    20
    SE
    20
    SE
    20
    SE
    20
    SE
    20
    SE
    20
    SE
    20
    SE
    20
    SE
    21
    SE
    21
    SE
    21
    SE
    21
    SE
    21
    SE
    20
    SE
    20
    Wind gust (mph)
    26
    26
    26
    27
    28
    28
    28
    28
    28
    27
    27
    27
    27
    27
    27
    27
    28
    28
    28
    28
    28
    28
    27
    27
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    G
    VG
    G
    G
    VG
    VG
    VG
    G
    G
    VG
    G
    VG
    G
    G
    Humidity
    85%
    85%
    85%
    85%
    85%
    85%
    85%
    85%
    85%
    85%
    85%
    84%
    84%
    84%
    84%
    85%
    85%
    85%
    85%
    85%
    85%
    85%
    85%
    85%
    UV - - - - - - 1 1 2 4 7 8 9 9 7 4 2 1 1 - - - - -
    Friday (5 September 2025)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Overcast Overcast Overcast Cloudy Overcast Overcast Overcast Overcast
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    Feels like temperature (°C)
    13°
    13°
    13°
    13°
    14°
    14°
    14°
    14°
    Wind direction and speed (mph)
    SE
    20
    SE
    21
    SE
    21
    SE
    20
    SE
    18
    SE
    18
    SE
    18
    ESE
    19
    Wind gust (mph)
    28
    29
    28
    26
    24
    25
    26
    26
    Visibility (description)
    G
    G
    G
    VG
    G
    G
    VG
    VG
    Humidity
    85%
    84%
    84%
    84%
    85%
    84%
    82%
    84%
    UV - - 1 4 9 4 1 -
    Saturday (6 September 2025)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    Feels like temperature (°C)
    14°
    13°
    13°
    13°
    14°
    14°
    14°
    14°
    Wind direction and speed (mph)
    SE
    18
    SE
    18
    SE
    19
    ESE
    18
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    18
    Wind gust (mph)
    26
    26
    26
    25
    23
    23
    25
    25
    Visibility (description)
    G
    G
    G
    G
    VG
    VG
    G
    G
    Humidity
    84%
    84%
    83%
    83%
    84%
    83%
    83%
    82%
    UV - - 1 3 10 4 1 -
    Sunday (7 September 2025)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    17°
    17°
    16°
    17°
    17°
    17°
    17°
    17°
    Feels like temperature (°C)
    14°
    13°
    13°
    13°
    14°
    14°
    14°
    14°
    Wind direction and speed (mph)
    ESE
    18
    ESE
    18
    ESE
    19
    ESE
    18
    ESE
    17
    ESE
    16
    ESE
    17
    ESE
    17
    Wind gust (mph)
    25
    26
    26
    25
    23
    22
    23
    24
    Visibility (description)
    VG
    VG
    G
    VG
    VG
    VG
    VG
    G
    Humidity
    84%
    84%
    83%
    81%
    79%
    78%
    78%
    78%
    UV - - 1 4 10 4 1 -
    Monday (8 September 2025)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Overcast Overcast Overcast Overcast Sunny intervals Sunny intervals Overcast Overcast
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    17°
    16°
    17°
    17°
    17°
    17°
    17°
    17°
    Feels like temperature (°C)
    14°
    13°
    13°
    13°
    14°
    14°
    14°
    14°
    Wind direction and speed (mph)
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    16
    ESE
    15
    ESE
    15
    SE
    16
    Wind gust (mph)
    23
    24
    24
    23
    21
    21
    22
    23
    Visibility (description)
    G
    G
    VG
    G
    VG
    VG
    VG
    VG
    Humidity
    78%
    79%
    78%
    76%
    76%
    75%
    75%
    75%
    UV - - 1 5 11 5 1 -
    Tuesday (9 September 2025)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Overcast Overcast Sunny intervals Sunny intervals Sunny intervals Cloudy Overcast Overcast
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    17°
    17°
    16°
    17°
    17°
    17°
    17°
    17°
    Feels like temperature (°C)
    14°
    13°
    13°
    14°
    14°
    15°
    15°
    14°
    Wind direction and speed (mph)
    SE
    17
    SE
    17
    SE
    16
    ESE
    16
    ESE
    14
    SE
    13
    SE
    13
    SE
    14
    Wind gust (mph)
    23
    23
    23
    21
    19
    18
    20
    20
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    75%
    75%
    75%
    75%
    75%
    74%
    74%
    74%
    UV - - 1 5 10 4 1 -

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    Forecast
    Forecast for 13:00 (UTC), Wed
    Updated 07:26 (UTC+1) on Wed 3 Sep 2025
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