St Helena & Islands weather in March 2025

Expect 23°C daytime maximum temperatures in the shade with on average -9999 hours of sunshine per day in St Helena & Islands in March. Check more long-term weather averages for St Helena & Islands in March before you book your next holiday to St Helena & Islands in 2025/2026.

23
23°C max day temperature
15
15 days with some rainfall
19
19°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
90
90 mm of monthly rainfall
11
11+ (Extreme) UV index
25
25°C sea temperature

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The March 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 destinations in St Helena & Islands in March. Select a destination to see more weather parameters.

All St Helena & Islands destinations

Metric (°C / mm) | Imperial (°F / inches)

How hot is it in St Helena & Islands in March?

Daytime temperatures usually reach 23°C in St Helena, St Helena & Islands in March, falling to 19°C at night.

How warm is the sea around St Helena & Islands in March?

The average sea temperature around St Helena, St Helena & Islands in March is 25°C.

Does it ever rain in St Helena & Islands in March?

There are usually 15 days with some rain in St Helena, St Helena & Islands in March and the average monthly rainfall is 90mm.

St Helena & Islands March sunrise & sunset times

Browse the sunrise and sunset times for St Helena & Islands in March 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.

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