Fort-de-France climate
Fort-de-France (Martinique) has a tropical monsoon climate (Köppen Am). The average temperature over the year is 27 °C81 °F, and about 1,478 mm58 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Fort-de-France climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2780 | 2678 | 2679 | 662.6 |
| Feb | 2780 | 2578 | 2679 | 461.8 |
| Mar | 2781 | 2678 | 2679 | 522.0 |
| Apr | 2882 | 2679 | 2780 | 943.7 |
| May | 2883 | 2780 | 2882 | 1114.4 |
| Jun | 2983 | 2781 | 2882 | 1335.2 |
| Jul | 2984 | 2781 | 2883 | 1576.2 |
| Aug | 2984 | 2882 | 2883 | 1847.2 |
| Sep | 2985 | 2882 | 2984 | 1787.0 |
| Oct | 2984 | 2882 | 2883 | 1987.8 |
| Nov | 2883 | 2781 | 2882 | 1676.6 |
| Dec | 2882 | 2780 | 2781 | 923.6 |
| Year | 2985 | 2578 | 2781 | 1,47858 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 76% | 39% | 5.1 | 11:21 |
| Feb | 75% | 38% | 5.8 | 11:39 |
| Mar | 75% | 43% | 6.3 | 12:01 |
| Apr | 76% | 52% | 6.4 | 12:27 |
| May | 77% | 56% | 6.2 | 12:48 |
| Jun | 78% | 62% | 5.9 | 12:59 |
| Jul | 79% | 53% | 6.1 | 12:55 |
| Aug | 79% | 47% | 6.2 | 12:36 |
| Sep | 78% | 53% | 6.0 | 12:12 |
| Oct | 79% | 55% | 5.4 | 11:47 |
| Nov | 79% | 46% | 5.0 | 11:26 |
| Dec | 77% | 41% | 4.9 | 11:16 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Fort-de-France is like
The warmest month is September, with an average high of 29 °C85 °F and a low of 28 °C82 °F. The coldest is February, when highs average 27 °C80 °F and lows 25 °C78 °F. Temperatures barely change through the year: the warmest and the coolest month differ by only 2.5 °C4.5 °F.
It is wet, with about 1,478 mm58 in of precipitation per year. The wettest three-month stretch is August–October, which brings 38% of the annual total. The wettest month is October (198 mm7.8 in), the driest is February (46 mm1.8 in).
Relative humidity ranges from 75% in February to 79% in October. The clearest skies (lowest average cloud amount, 38%) are typical of February. Average wind speed near the ground ranges from 17 km/h (11 mph) in September to 24 km/h (15 mph) in February. Daylight lasts from about 11.3 hours in December to 13.0 hours in June.
Best time to visit Fort-de-France
Based on these averages, the most comfortable months for sightseeing and outdoor activities are December–April: average highs of 27 °C80 °F to 28 °C82 °F with 46 mm1.8 in to 94 mm3.7 in of precipitation per month.
The most challenging month is October, which is very wet (198 mm7.8 in) and humid (79% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Fort-de-France
- Wetter months (June–November) — highs 2883 to 29 °C85 °F, lows 2781 to 28 °C82 °F, about 169 mm6.7 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.
- Drier months (December–May) — highs 2780 to 28 °C83 °F, lows 2578 to 27 °C80 °F, about 77 mm3.0 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses.
How Fort-de-France compares
Compared with Bridgetown, about 229 km to the southeast, Fort-de-France has practically the same average temperature and receives 90% more precipitation (1,478 mm58 in vs 777 mm31 in).
Places in other countries with the most similar temperature and rainfall pattern: Roseau (Dominica, Am), Castries (Saint Lucia, Am) and Basse-Terre (Guadeloupe, Aw).
Nearby places
- Castries 68 km · 27 °C80 °F · 1,444 mm57 in
- Roseau 85 km · 27 °C81 °F · 1,419 mm56 in
- Kingstown 162 km · 28 °C82 °F · 682 mm27 in
- Basse-Terre 170 km · 27 °C81 °F · 1,171 mm46 in
- Bridgetown 229 km · 27 °C81 °F · 777 mm31 in
- Plymouth 264 km · 27 °C80 °F · 1,003 mm39 in
- Saint Johns 292 km · 27 °C81 °F · 1,108 mm44 in
- Saint Georges 293 km · 28 °C82 °F · 1,301 mm51 in
Frequently asked questions
What is the warmest month in Fort-de-France?
September is the warmest month in Fort-de-France, with an average high of 29 °C (85 °F) and an average low of 28 °C (82 °F).
What is the coldest month in Fort-de-France?
February is the coldest month, with an average high of 27 °C (80 °F) and an average low of 25 °C (78 °F).
When does it rain the most in Fort-de-France?
October is the wettest month with about 198 mm (7.8 in) of precipitation; February is the driest with about 46 mm (1.8 in).
What is the best time to visit Fort-de-France?
Judging by long-term averages, the most comfortable months are December–April.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.