Fort-de-France (Martinique) weather in December

December in Fort-de-France: hot, a little rain, with clean air — fine if you can take 20 rainy days.

Updated September 2026 · climate normals from ERA5 reanalysis

Fort-de-France Martinique · Lesser Antilles · Island88
  1. 89Jan
  2. 90Feb
  3. 90Mar
  4. 90Apr
  5. 89May
  6. 87Jun
  7. 84Jul
  8. 84Aug
  9. 83Sep
  10. 82Oct
  11. 84Nov
  12. 88Dec

#6 of 12 months in Fort-de-France · #161 of 1413 destinations to visit in December · comfort 88/100 (tier A)

Days
27°C
Nights
25°C
Wet days
20
Sun
10.1 h
Humidity
78%
Daylight
11 h
Fort-de-France, Martinique
Photo: Nicolas Doyen · Pexels

Traveller notes on Fort-de-France in December

Notes from nearby Castries (69 km away)

Fort-de-France doesn't have its own notes for December yet — these are about Castries, close enough to share the season.

Regulars are specific this counts as peak season here, calm seas and minimal seaweed the norm, any rain typically arriving in short bursts lasting a few hours at most rather than settling in for a full day. Our row backs that hot, genuinely wet read, 29.1C reading as a hot 31C, over 23C nights feeling 25C, with 41.8mm of rain spread across 14.3 days and humidity at 75 percent. Regulars are consistent a beautiful, sunny, breezy stretch in the mid-80s Fahrenheit is a common report even in the technically coolest month for locals. Genuinely excellent conditions overall make this one of the most popular windows to visit. The sea sits at a bath-warm 27.9C. The record: 10.2 hours of sun, a 23.9 kph wind and AQI 39.
PeakSeasonRainInShortBurstsOnly · December · 1 month ago · about Castries · Read more on Tripadvisor ↗

Other months in Fort-de-France

February is carnival, and in Martinique that is not a sideshow - most of it happens in downtown Fort-de-France, and the forum's practical warning is about supplies rather than weather, because the shops largely close during it and groceries become hard to find. The set piece people name is Bet a Fe, the night parade of lights, costumes and music that starts around seven in the evening. The weather underneath is dry-season Caribbean, and our row shows its shape: 15.3 precipitation days carrying only 44.5mm between them, which is passing showers rather than wet days, under a steady 22 kph trade wind. The record: 26.7C days that feel like 29C, 23.9C nights, 10.7 hours of sun and a 26.4C sea.
StockUpBeforeCarnival · February · 1 month ago · Read more on Tripadvisor ↗
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.
Tripadvisor community · September · 1 month ago · Read more on Tripadvisor ↗
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.
Tripadvisor community · March · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Fort-de-France's card on the map.

Fort-de-France climate normals — December

Daytime high27°C / 81°F🥵 hot
Nighttime low25°C / 77°F
Feels like (high)30°C / 86°F
Sea temperature28°C / 82°F😎 warm sea
Rainfall61 mm / 2.4 in🌦 some rain
Rainy days20 days
Humidity78%💦 very humid
Dew point22°C / 71°F
Sunshine10.1 h/day
Daylight11.3 h
Wind20 km/h / 12 mph
Air quality (US AQI)38🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Fort-de-France in December

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.

BusyCareme, the dry season, school holidays in 3 of the markets that fill it(estimated)

JFMAMJJASOND

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.

JFMAMJJASOND

What's on in Fort-de-France in December

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Season

    Careme, the dry season

    1 Dec – 30 Apr · usuallyCrowded

    The island calls its dry half careme. The north trails and the climb up Pelee are walkable, the rivers drop, and the cane is cut; it is also when the flights from Paris are fullest.

What's on around the world in December →

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?

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Fort-de-France in December — FAQ

Is December a good time to visit Fort-de-France?
December in Fort-de-France: hot, a little rain, with clean air — fine if you can take 20 rainy days. It ranks #6 of 12 months for Fort-de-France on SeasonMap's comfort score (88/100).
What is the weather like in Fort-de-France in December?
In December, Fort-de-France averages a daily high of 27.1°C and a low of 24.8°C, with about 61.1 mm of rain over roughly 19.6 rainy days.
What is the air quality in Fort-de-France in December?
Fort-de-France has a mean US Air Quality Index of about 38 in December.

Within 300 km: Castries' ARC finish at Rodney Bay on 25 Nov – 22 Dec, and Bridgetown's Run Barbados Marathon Weekend around 1–8 Dec.