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May in Saint-Joseph sees daytime temperatures around 29°C (84°F) and lows of 25°C (77°F) at night. With around 69 mm (2.7 in) of rainfall expected, it's worth packing a rain jacket.
So this is a great month to visit if you prefer dry days with pleasant temperatures.
Pick a month to see the average temperature, rainfall and sunshine in Saint-Joseph - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Saint-Joseph typically stay consistent throughout May, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 24°C (75°F).
Browse day-by-day weather records for Saint-Joseph spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on 36 years of weather observations in Saint-Joseph between 1990 and 2026, these are the recorded extremes.
Find out more about the weather in Martinique and which places have the best travel conditions in this month. See all of Martinique 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 weather calls for comfortable, breathable clothing in May. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Rain is likely on several days, so bring a good rain jacket. With water temperatures around 27°C (81°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
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 Saint-Joseph climate overview or explore weather in Martinique.
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