St Lucia weather in May 2021

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Below are average maximum temperatures at popular destinations in St Lucia in May. Select a destination to see more weather parameters.

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The May weather guide for 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.

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How hot is it in St Lucia in May?

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

How sunny is it in St Lucia in May?

There are normally 8 hours of bright sunshine each day in Castries, St Lucia in May - that's 64% of daylight hours.

How warm is the sea around St Lucia in May?

The average sea temperature around Castries, St Lucia in May is 28°C.

Does it rain in St Lucia in May?

There are usually 15 days with some rain in Castries, St Lucia in May and the average monthly rainfall is 124mm.

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

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St Lucia sunrise & sunset times for May 2021

Browse the sunrise and sunset times for St Lucia in May 2021. Select a month to view St Lucia sunrise & sunset times for the next 12 months. The St Lucia sunrise and sunset times shown below are for Castries.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st May 2021 05:42 18:20
Sunday, 16th May 2021 05:37 18:24
Monday, 31st May 2021 05:35 18:29
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