SeasonMapFort-de-France (Martinique) weather in August
Martinique
August in Fort-de-France: sweltering, rainy, with clean air — fine if you can take 25 rainy days.
#9 of 12 months in Fort-de-France · #483 of 1383 destinations to visit in August · comfort 84/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Fort-de-France in August
Other months in Fort-de-France
Forum posters describe September as roughly a coin flip day to day - about half the days perfectly nice and sunny, the other half bringing wind systems, cloud and higher winds. When rain falls, posters describe it as widely scattered and often brief, sometimes just a few minutes to an hour, with one part of the island seeing rain while another half a mile away stays bright and sunny. Posters are direct about the real hurricane risk: September sits at the peak of the season, with roughly one in every two to three years bringing an actual damaging storm, alongside a general chance of a day or two of unsettled weather from a passing system most years. Posters generally frame September as a viable, lower-price option for anyone willing to accept that real risk.
Martinique's forum describes year-round weather as plenty of sunshine with occasional showers, roughly 25-31°C, and Fort-de-France on the drier southern half of the island compared to the wetter north. Regulars point to the dry-season months around March as generally reliable, with rain a real possibility on any given day but rarely enough to derail a trip.
Add your own note from Fort-de-France's card on the map.
Fort-de-France climate normals — August
| Daytime high | 29°C / 84°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 26°C / 79°F | |
| Feels like (high) | 34°C / 93°F | |
| Sea temperature | 30°C / 86°F | ♨️ bath-warm |
| Rainfall | 122 mm / 4.8 in | 🌧 rainy |
| Rainy days | 25 days | |
| Humidity | 81% | 💦 very humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 11.3 h/day | |
| Daylight | 12.6 h | |
| Wind | 19 km/h / 12 mph | |
| Air quality (US AQI) | 43 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Fort-de-France in August
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyTour des Yoles Rondes, school holidays in 3 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Fort-de-France's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherFort-de-France's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in Fort-de-France in August
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Sargassum on the Atlantic coast
1 Mar – 30 Sep · usuallySargassum seasonThe windward coast from Le Robert round to Sainte-Anne takes it worst; as it rots the gas corrodes electronics indoors and closes beach restaurants for days. The Caribbean side is usually clear.
- Hazard
Hivernage and hurricane season
1 Jun – 30 NovThe wet half of the year is called hivernage, and the storm risk sits inside it, concentrated between mid-August and early October. Inter-island ferries stop a day or two before a system passes. Source ↗
- Festival
Tour des Yoles Rondes
26 Jul – 2 AugMajor festivalCrowdedBook earlyEight days of sail canoes racing village to village, crews hanging off wooden poles to keep them upright. The coast road to each afternoon's finish is jammed by lunchtime and the island watches the rest on television. Source ↗
Nearby, and something's on
Within 300 km of Fort-de-France — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Fort-de-France?
Fort-de-France in August — FAQ
- Is August a good time to visit Fort-de-France?
- August in Fort-de-France: sweltering, rainy, with clean air — fine if you can take 25 rainy days. It ranks #9 of 12 months for Fort-de-France on SeasonMap's comfort score (84/100).
- What is the weather like in Fort-de-France in August?
- In August, Fort-de-France averages a daily high of 28.8°C and a low of 26°C, with about 121.7 mm of rain over roughly 25.2 rainy days.
- What is the air quality in Fort-de-France in August?
- Fort-de-France has a mean US Air Quality Index of about 43 in August.
Other months in Fort-de-France
Compare Fort-de-France in August
Warmer or cooler than Fort-de-France in August
Similar destinations in Caribbean — August
Within 300 km: Bridgetown's Hawksbill nesting around 1 May – 31 Oct, and Pointe-à-Pitre's Tour cycliste de la Guadeloupe on 31 Jul – 9 Aug.