Tristan da Cunha weather in May 2025

Expect 59°F daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Tristan da Cunha in May. Check more long-term weather averages for Tristan da Cunha in May before you book your next holiday to St Helena & Islands in 2025/2026.

  • 59°F maximum daytime temperature in May in Tristan da Cunha59
    59°F max day temperature
  • 4 hours of sunshine per day
  • 21 days with some rainfall in May in Tristan da Cunha21
    21 days with some rainfall
  • 52°F minimum night-time temperature in May in Tristan da Cunha52
    52°F min night temperature
  • 10 hours of daylight per day in May in Tristan da Cunha10
    10 hours of daylight per day
  • No heat & humidity in May in Tristan da Cunha0
    No heat & humidity
  • 5.5 inches monthly rainfall in May in Tristan da Cunha5.5
    5.5 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in May in Tristan da Cunha3
    3 (Moderate) UV index
  • 61°F sea temperature in May in Tristan da Cunha61
    61°F sea temperature

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The May weather guide for St Helena & Islands (Tristan da Cunha) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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How warm is it in Tristan da Cunha in May?

Daytime temperatures usually reach 59°F in Tristan da Cunha in May, falling to 52°F at night.

How sunny is it in Tristan da Cunha in May?

There are normally 4 hours of bright sunshine each day in Tristan da Cunha in May - that's 35% of daylight hours.

How warm is the sea around Tristan da Cunha in May?

The average sea temperature around Tristan da Cunha in May is 61°F.

Does it rain in Tristan da Cunha in May?

There are usually 21 days with some rain in Tristan da Cunha in May and the average monthly rainfall is 5.5 inches.

Tristan da Cunha May sunrise & sunset times

Browse the sunrise and sunset times for Tristan da Cunha in May 2025. Select a month to view Tristan da Cunha sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 07:29 18:03
Friday, 16th May 2025 07:42 17:49
Saturday, 31st May 2025 07:53 17:41

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