Best year time to visit Saint Helena, Ascension, and Tristan da Cunha

General weather information about Saint Helena, Ascension, and Tristan da Cunha

Average annual temperature is 21.1 °C

Absolute maximum temperature: 25.5 °C

Absolute minimum temperature: 15.5 °C

Number of sunny days: 55 days

Number of rainy days: 310 days

Look at detailed online map of Saint Helena, Ascension, and Tristan da Cunha

* Weather data for Saint Helena, Ascension, and Tristan da Cunha Saint Helena is based on climate observations for 2026 year

Saint Helena, Ascension, and Tristan da Cunha air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)23.624.624.424.223.422.122.821.722.022.225.525.0
Average daytime temperature (°C)22.923.723.823.422.621.321.420.720.421.023.224.2
Average temperature (°C)22.423.123.222.822.020.519.519.018.619.220.922.0
Average night temperature (°C)21.822.422.422.121.219.617.917.617.217.719.020.3
Absolute minimum temperature (°C)20.920.721.020.719.517.215.515.616.216.017.219.3

Saint Helena, Ascension, and Tristan da Cunha monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)13.012.012.011.011.011.011.011.012.012.012.013.0
Daylight mean duration (h)12.912.612.211.711.411.211.311.612.012.512.913.1
Daylight minimum duration (h)12.012.011.011.011.011.011.011.011.012.012.012.0
Sunshine mean duration (h)11.611.610.910.710.010.19.89.09.59.811.011.5
Precipitation (mm)171628122229473043392569
Sunny days572774733460
Rainy days262129232426242827272431
Snow days000000000000

Saint Helena, Ascension, and Tristan da Cunha - weather forecast by months

Saint Helena, Ascension, and Tristan da Cunha weather in januarySaint Helena, Ascension, and Tristan da Cunha weather in februarySaint Helena, Ascension, and Tristan da Cunha weather in marchSaint Helena, Ascension, and Tristan da Cunha weather in aprilSaint Helena, Ascension, and Tristan da Cunha weather in maySaint Helena, Ascension, and Tristan da Cunha weather in juneSaint Helena, Ascension, and Tristan da Cunha weather in julySaint Helena, Ascension, and Tristan da Cunha weather in augustSaint Helena, Ascension, and Tristan da Cunha weather in septemberSaint Helena, Ascension, and Tristan da Cunha weather in octoberSaint Helena, Ascension, and Tristan da Cunha weather in novemberSaint Helena, Ascension, and Tristan da Cunha weather in december

Best time to visit Saint Helena, Ascension, and Tristan da Cunha:

The largest precipitation sum in Saint Helena, Ascension, and Tristan da Cunha is at

  • July — 47(mm)
  • September — 43(mm)
  • December — 69(mm)

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    Frequently asked questions

    When is the best time to visit Saint Helena, Ascension, and Tristan da Cunha?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Saint Helena, Ascension, and Tristan da Cunha.
    What is the weather like in Saint Helena, Ascension, and Tristan da Cunha?
    See average temperature, rainfall and daylight hours for Saint Helena, Ascension, and Tristan da Cunha by month in the table above.
    How many sunny days does Saint Helena, Ascension, and Tristan da Cunha have?
    The monthly weather statistics above show sunshine and rainfall patterns for Saint Helena, Ascension, and Tristan da Cunha throughout the year.