St Thomas weather in May 2025

Expect 29°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in St Thomas in May. Check more long-term weather averages for St Thomas in May before you book your next holiday to Virgin Islands in 2025/2026.

  • 29°C maximum daytime temperature in May in St Thomas29
    29°C max day temperature
  • 8 hours of sunshine per day
  • 12 days with some rainfall in May in St Thomas12
    12 days with some rainfall
  • 23°C minimum night-time temperature in May in St Thomas23
    23°C min night temperature
  • 13 hours of daylight per day in May in St Thomas13
    13 hours of daylight per day
  • High heat & humidity in May in St ThomasH
    High heat & humidity
  • 129 mm monthly rainfall in May in St Thomas129
    129 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in May in St Thomas11
    11+ (Extreme) UV index
  • 27°C sea temperature in May in St Thomas27
    27°C sea temperature

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The May weather guide for Virgin Islands (St Thomas) 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 / mm)  |  Imperial (°F / inches)

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How hot is it in St Thomas in May?

Daytime temperatures usually reach 29°C in St Thomas in May with high heat and humidity, falling to 23°C at night.

How sunny is it in St Thomas in May?

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

How warm is the sea around St Thomas in May?

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

Does it rain in St Thomas in May?

There are usually 12 days with some rain in St Thomas in May and the average monthly rainfall is 129mm.

St Thomas May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:52 18:41
Friday, 16th May 2025 05:46 18:47
Saturday, 31st May 2025 05:43 18:52

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