- Save up to 9% on holidays to St Lucia
- Book online with TUI to receive discount
- FREE kids places & low deposits also available
St Lucia weather in May 2021
Get the latest coronavirus (COVID-19) updates for St Lucia with current travel advice, statistics and online resources.
Below are average maximum temperatures at popular destinations in St Lucia in May. Select a destination to see more weather parameters.
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.
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|
- Save on holidays to the Caribbean with latest special offers
- Book holidays to Barbados, Jamaica, Antigua & more
- Filter offers by departure airport, star rating & more
Metric (°C / mm) | Imperial (°F / inches)
Discover more about St Lucia
More St Lucia destinations
Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers
We promise not to share your details
Popular travel offers
*affiliate links: find out how we are funded and why this helps us remain free to use.