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August in Saint-Joseph sees daytime temperatures around 30°C (86°F) and lows of 25°C (77°F) at night. With around 130 mm (5.1 in) of rainfall expected, it's worth packing a rain jacket.
August in Saint-Joseph has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
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 August, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 25°C (77°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.
Our historical data for Saint-Joseph spans 1990 to 2026, revealing these weather 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 August →
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 Saint-Joseph in August. 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 28°C (82°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
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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