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St Helena & Islands weather in May 2025
Expect 70°F daytime maximum temperatures in the shade with on average -9999 hours of sunshine per day in St Helena & Islands in May. Check more long-term weather averages for St Helena & Islands in May before you book your next holiday to St Helena & Islands in 2025/2026.
- 7070°F max day temperature
- 1414 days with some rainfall
- 6363°F min night temperature
- 1111 hours of daylight per day
- 0No heat & humidity
- 2.82.8 inches of monthly rainfall
- 99 (Very High) UV index
- 7575°F sea temperature
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The May weather guide for St Helena & Islands (St Helena) 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.
Top St Helena & Islands destinations
Below are average maximum temperatures at popular countries, regions and places in St Helena & Islands in May. Select a holiday destination to see more weather parameters.
All St Helena & Islands destinations
Metric (°C) | Imperial (°F)
How hot is it in St Helena & Islands in May?
Daytime temperatures usually reach 70°F in St Helena, St Helena & Islands in May, falling to 63°F at night.
How warm is the sea around St Helena & Islands in May?
The average sea temperature around St Helena, St Helena & Islands in May is 75°F.
Does it ever rain in St Helena & Islands in May?
There are usually 14 days with some rain in St Helena, St Helena & Islands in May and the average monthly rainfall is 2.8 inches.
St Helena & Islands May sunrise & sunset times
Browse the sunrise and sunset times for St Helena & Islands in May 2025. Select a month to view St Helena & Islands sunrise and sunset times for the next 12 months. The St Helena & Islands sunrise and sunset times shown below are for St Helena.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Thursday, 1st May 2025 | 06:34 | 18:05 |
Friday, 16th May 2025 | 06:38 | 18:00 |
Saturday, 31st May 2025 | 06:43 | 17:58 |
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