St John's weather in May 2025

Expect 30°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in St John's in May. Check more long-term weather averages for St John's in May before you book your next holiday to Antigua in 2025/2026.

  • 30°C maximum daytime temperature in May in St John's30
    30°C max day temperature
  • 8 hours of sunshine per day
  • 14 days with some rainfall in May in St John's14
    14 days with some rainfall
  • 24°C minimum night-time temperature in May in St John's24
    24°C min night temperature
  • 13 hours of daylight per day in May in St John's13
    13 hours of daylight per day
  • High heat & humidity in May in St John'sH
    High heat & humidity
  • 91 mm monthly rainfall in May in St John's91
    91 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in May in St John's11
    11+ (Extreme) UV index
  • 27°C sea temperature in May in St John's27
    27°C sea temperature

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The May weather guide for Antigua (St John's) 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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More about Antigua

How hot is it in St John's in May?

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

How sunny is it in St John's in May?

There are normally 8 hours of bright sunshine each day in St John's in May - that's 59% of daylight hours.

How warm is the sea around St John's in May?

The average sea temperature around St John's in May is 27°C.

Does it rain in St John's in May?

There are usually 14 days with some rain in St John's in May and the average monthly rainfall is 91mm.

St John's May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:42 18:27
Friday, 16th May 2025 05:35 18:32
Saturday, 31st May 2025 05:33 18:38

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