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

Forecast days

Sunny intervals changing to partly cloudy by early evening.
Sunrise iconSunrise:
Sunset iconSunset:
VH UV
No pollution data.
No pollen data.

    6 day forecast for St. Helena Is.

    Tomorrow (19 July 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 Cloudy 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 day Sunny day Sunny day Sunny day Partly cloudy night Partly cloudy night Partly cloudy night Clear 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
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    18°
    18°
    18°
    18°
    18°
    17°
    Feels like temperature (°C)
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    Wind direction and speed
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    17
    Wind gust (mph)
    23
    23
    23
    23
    23
    24
    24
    25
    25
    24
    24
    24
    24
    23
    23
    23
    23
    23
    23
    23
    24
    24
    24
    24
    Visibility
    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
    73%
    73%
    73%
    73%
    72%
    71%
    71%
    72%
    72%
    72%
    72%
    72%
    73%
    73%
    73%
    73%
    73%
    72%
    72%
    71%
    72%
    72%
    72%
    72%
    UV - - - - - - 1 1 1 3 6 7 8 7 6 3 2 1 1 - - - - -
    Sunday (20 July 2025)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Cloudy Overcast
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    17°
    17°
    17°
    17°
    17°
    17°
    18°
    18°
    Feels like temperature (°C)
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    Wind direction and speed (mph)
    ESE
    17
    ESE
    17
    ESE
    18
    ESE
    19
    ESE
    18
    ESE
    17
    ESE
    18
    ESE
    19
    Wind gust (mph)
    24
    26
    26
    26
    25
    25
    26
    27
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    71%
    72%
    71%
    69%
    69%
    69%
    69%
    71%
    UV - - 1 3 8 3 1 -
    Monday (21 July 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 Partly cloudy night 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°
    13°
    13°
    13°
    13°
    Wind direction and speed (mph)
    SE
    19
    SE
    20
    ESE
    20
    ESE
    21
    ESE
    21
    ESE
    21
    ESE
    20
    ESE
    21
    Wind gust (mph)
    28
    29
    30
    30
    29
    29
    29
    30
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    70%
    71%
    71%
    72%
    73%
    74%
    73%
    73%
    UV - - 1 4 5 4 1 -
    Tuesday (22 July 2025)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Overcast Overcast Overcast Cloudy Sunny intervals Sunny intervals Partly cloudy night Overcast
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    17°
    17°
    17°
    17°
    17°
    17°
    18°
    18°
    Feels like temperature (°C)
    13°
    13°
    13°
    13°
    13°
    13°
    14°
    14°
    Wind direction and speed (mph)
    ESE
    21
    ESE
    22
    ESE
    22
    ESE
    23
    ESE
    22
    ESE
    20
    ESE
    20
    ESE
    20
    Wind gust (mph)
    30
    31
    32
    32
    30
    29
    28
    28
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    74%
    74%
    74%
    74%
    74%
    75%
    74%
    74%
    UV - - 1 4 7 3 1 -
    Wednesday (23 July 2025)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Overcast Cloudy Overcast Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    17°
    17°
    17°
    17°
    18°
    17°
    18°
    18°
    Feels like temperature (°C)
    13°
    13°
    13°
    13°
    14°
    14°
    14°
    14°
    Wind direction and speed (mph)
    ESE
    20
    ESE
    20
    ESE
    21
    ESE
    21
    ESE
    20
    ESE
    17
    ESE
    17
    ESE
    17
    Wind gust (mph)
    29
    29
    30
    29
    27
    24
    24
    24
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    74%
    74%
    75%
    75%
    75%
    75%
    75%
    75%
    UV - - 1 3 7 4 1 -
    Thursday (24 July 2025)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Cloudy Overcast Overcast Overcast Sunny intervals Cloudy 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°
    14°
    14°
    14°
    14°
    14°
    15°
    15°
    Wind direction and speed (mph)
    ESE
    17
    SE
    17
    SE
    17
    ESE
    19
    ESE
    17
    ESE
    16
    ESE
    15
    ESE
    15
    Wind gust (mph)
    25
    24
    26
    25
    24
    22
    22
    22
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    74%
    74%
    74%
    74%
    74%
    74%
    74%
    74%
    UV - - 1 3 7 3 1 -

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    Forecast for 00:00 (UTC), Sat
    Updated 19:37 (UTC+1) on Fri 18 Jul 2025
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