May is a shoulder month with increasing afternoon showers and higher humidity compared with earlier months. Visitor numbers ease and some operators offer lower rates. Rain typically falls in short, heavy bursts allowing many dry windows for activities.
Average daily low and high (°C) and monthly rainfall. The badge shows how it feels, allowing for humidity.
Temperature map
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Average temperature across Saint Lucia in May.
Where to Go in Saint Lucia in May
North Coast & Rodney Bay
Castries, Gros Islet, Pigeon Island, Cap Estate
May is when the island begins to lean toward the rainy season; short, sharp showers become more frequent, often late afternoon, but the mornings are usually clear and warm - perfect for snorkeling at Anse Chastanet before cloud build-up. The Saint Lucia Jazz & Arts Festival typically runs in May, drawing international crowds to Rodney Bay and Castries venues and making this a lively time to visit despite occasional bursts of rain. Pack a light rain jacket and expect humid evenings with steady trade-wind breezes.
May brings more humidity and an uptick in brief afternoon showers, but the west remains friendlier for outdoor activities than the windward side; the Pitons are greener and waterfalls regain volume, which pleases photographers. The Saint Lucia Jazz Festival adds cultural nights in nearby towns, increasing demand at restaurants and resorts. Plan hikes for early morning, bring a light rain jacket for sudden downpours, and be ready for richer vegetation and slightly muddier trails.
Central Highlands & Rainforest
Mount Gimie, Tet Paul, interior trails and waterfalls
May increases humidity in the highlands and mist becomes more common in the mornings, feeding the rainforest and swelling streams - waterfalls start to look fuller and more photogenic. The Saint Lucia Jazz Festival brings concert nights on some slopes and coastal fringe venues, so inland stays can combine nature with music. Prepare for muddy sections on trails and pack waterproof footwear if planning extended hikes.
Dawn humidity creeps up in May and the east coast begins to see more frequent, brief showers; the steady trades still make it one of the best places for consistent wind sports and windswept beach walks. The nearby towns have small local festivals and fishing activity increases with the warmer seas. Bring a quick-dry top, waterproof bag for camera gear, and be prepared for afternoon cloud buildups that clear by evening.
Events & Festivals in May
There are no major festivals or events in Saint Lucia during May to be aware of.
Planning a trip to Saint Lucia?
See how May compares with the rest of the year, then read the full guide.
