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.

St Lucia sunrise & sunset times for May 2021

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


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

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