St Lucia weather in May 2025

Expect 77°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in St Lucia in May. Check more long-term weather averages for St Lucia in May before you book your next holiday to South Africa in 2025/2026.

  • 77°F maximum daytime temperature in May in St Lucia77
    77°F max day temperature
  • 8 hours of sunshine per day
  • 8 days with some rainfall in May in St Lucia8
    8 days with some rainfall
  • 61°F minimum night-time temperature in May in St Lucia61
    61°F min night temperature
  • 11 hours of daylight per day in May in St Lucia11
    11 hours of daylight per day
  • Low heat & humidity in May in St LuciaL
    Low heat & humidity
  • 3.6 inches monthly rainfall in May in St Lucia3.6
    3.6 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in May in St Lucia5
    5 (Moderate) UV index
  • 77°F sea temperature in May in St Lucia77
    77°F sea temperature

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The May weather guide for South Africa (St Lucia) 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)

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More about South Africa

How hot is it in St Lucia in May?

Daytime temperatures usually reach 77°F in St Lucia in May with low heat and humidity, falling to 61°F at night.

How sunny is it in St Lucia in May?

There are normally 8 hours of bright sunshine each day in St Lucia in May - that's 70% of daylight hours.

How warm is the sea around St Lucia in May?

The average sea temperature around St Lucia in May is 77°F.

Does it rain in St Lucia in May?

There are usually 8 days with some rain in St Lucia in May and the average monthly rainfall is 3.6 inches.

St Lucia May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 06:17 17:17
Friday, 16th May 2025 06:26 17:07
Saturday, 31st May 2025 06:34 17:02

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