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May in Port-Louis sees daytime temperatures around 28°C (82°F) and lows of 25°C (77°F) at night. With around 86 mm (3.4 in) of rainfall expected, it's worth packing a rain jacket.
If your ideal day consists of dry skies and pleasant temperatures, January, February, March, April, May, June and December typically offer the best circumstances for Port-Louis.
Pick a month to see the average temperature, rainfall and sunshine in Port-Louis - and find the best time to visit.
49-year average (1976-2025)
Based on our historical records, temperatures in Port-Louis typically stay consistent throughout May, with daily highs averaging around 28°C (82°F). Nights are warm, with lows around 24°C (75°F).
Browse day-by-day weather records for Port-Louis spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Our historical data for Port-Louis spans 1999 to 2026, revealing these weather extremes.
Find out more about the weather in Guadeloupe and which places have the best travel conditions in this month. See all of Guadeloupe in May →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Warm but pleasant conditions in Port-Louis in May. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. The water temperature sits at about 27°C (81°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Port-Louis climate overview or explore weather in Guadeloupe.
Where to go in May - average daytime high across popular destinations.
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