St. Lucia

Avg weather in May
12 Hrs per day
88 mm per month
73 % avg
13 Mph avg


What’s the weather like in St Lucia in May?

With its tropical Caribbean climate, St Lucia is a popular destination all year round. In May the island is very hot and bright, with frequent refreshing showers which reduce humidity. At this time of year, when the sun is so intense, you’ll need to seek shade and wear high factor sun cream to protect yourself from the heat.


In the daytime St Lucia enjoys average temperatures of 28°C, with highs of 30°C in the afternoon and lows of 26°C after dark. The island has around 63mm of rain in May across 15 wet days, so although it’s likely you’ll see showers on your holiday they’ll usually be light and brief. The sea’s a lovely and warm 28°C at this time of year, perfect for swimming and snorkelling in the crystal clear waters or paddling along the picture-perfect shores. At the start of the month, the sun rises at 5.40am and sets at 6.20pm.

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