St Barthelemy weather in May 2025

Q: How hot is it in St Barthelemy in May?

Daytime temperatures usually reach 30°C in St Barthelemy in May with high heat and humidity, falling to 24°C at night.

Q: How sunny is it in St Barthelemy in May?

There are normally 8 hours of bright sunshine each day in St Barthelemy in May - that's 62% of daylight hours.

Q: How warm is the sea around St Barthelemy in May?

The average sea temperature around St Barthelemy in May is 27°C.

Q: Does it rain in St Barthelemy in May?

There are usually 15 days with some rain in St Barthelemy in May and the average monthly rainfall is 95mm.

Expect 86°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in St Barthelemy in May. Check more long-term weather averages for St Barthelemy in May before you book your next holiday to St Barthelemy in 2025/2026.

86
86°F max day temperature
8
8 hours of sunshine per day
15
15 days with some rainfall
75
75°F min night temperature
13
13 hours of daylight per day
H
High heat & humidity
3.7
3.7 inches of monthly rainfall
11
11+ (Extreme) UV index
81
81°F sea temperature

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The May weather guide for St Barthelemy 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)

How hot is it in St Barthelemy in May?

Daytime temperatures usually reach 86°F in St Barthelemy in May with high heat and humidity, falling to 75°F at night.

How sunny is it in St Barthelemy in May?

There are normally 8 hours of bright sunshine each day in St Barthelemy in May - that's 62% of daylight hours.

How warm is the sea around St Barthelemy in May?

The average sea temperature around St Barthelemy in May is 81°F.

Does it rain in St Barthelemy in May?

There are usually 15 days with some rain in St Barthelemy in May and the average monthly rainfall is 3.7 inches.

St Barthelemy May sunrise & sunset times

Browse the sunrise and sunset times for St Barthelemy in May 2025. Select a month to view St Barthelemy sunrise and sunset times for the next 12 months.

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