Afternoons in Les Trois-Îlets reach 29 to 32 degrees in every month of the year
Rain adds up to roughly 2,057 mm over twelve months. November is the wettest month, February the driest. Its July, January and rain figures all sit close to those of typical mainland French towns.
Figures from Météo-France’s Lamentin-Aéro station, 8.1 km north-east.
A year in Les Trois-Îlets at a glance
Each month’s typical high and low in °C, at the Lamentin-Aéro station.
What a year in Les Trois-Îlets feels like
Typical highs and lows in the rainier and the drier half of the year, and by month, from Météo-France’s 1991–2020 normals at Lamentin-Aéro.
About 2,057 mm of rain a year
November is the wettest month and February the driest. About 58 days a year bring 10 mm or more. 9th wettest of 27 towns of 2,500+ in Martinique.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Lamentin-Aéro
The Météo-France station at Lamentin-Aéro
Lamentin-Aéro is 8.1 km north-east of Les Trois-Îlets. Every figure on this page is the station’s, not a measurement in Les Trois-Îlets itself.
| Station (Météo-France number) | Lamentin-Aéro (97213004) |
| Distance from the town | 8.1 km north-east |
| Station altitude | 3 m |
| Town altitude (its center) | 5 m |
| Period | 1991–2020 |
| Sunshine measured at | the same station |
TownRatings matches each commune to one station with at least 24 years of temperature and rain records: the nearest, counting every 100 m of height difference as 10 km, never across the sea.
How Les Trois-Îlets compares
Against the 27 towns of 2,500+ in Martinique (the dots). Mainland France’s towns aren’t a fair comparison for a tropical climate.
Nearby towns’ climate
The nearest towns of 2,500+ within 29 km. Where a neighbor uses the same station its figures are the same: the differences you’d feel over a few kilometers aren’t in the normals.
| Town | Station | Warmest-month high | Coolest-month low | Rain a year |
|---|---|---|---|---|
| Les Trois-Îlets | Lamentin-Aéro | 31.7°C | 22.1°C | 2,057 mm |
| Les Anses-d'Arlet 6.5 km | same station | 31.7°C about the same | 22.1°C about the same | 2,057 mm |
| Le Diamant 6.6 km | same station | 31.7°C about the same | 22.1°C about the same | 2,057 mm |
| Rivière-Salée 9.2 km | François-Chopot | 31.2°C 0.5°C cooler | 23.1°C 1°C milder | 1,793 mm |
| Fort-de-France 9.2 km | Fort-de-France Desaix | 30.5°C 1.2°C cooler | 22.0°C about the same | 1,951 mm |
| Ducos 9.7 km | François-Chopot | 31.2°C 0.5°C cooler | 23.1°C 1°C milder | 1,793 mm |
| Schœlcher 11 km | same station | 31.7°C about the same | 22.1°C about the same | 2,057 mm |
Les Trois-Îlets weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Lamentin-Aéro station.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 29.0°C | 22.3°C | 25.7°C | 115 mm | 202 |
| February | 29.1°C | 22.1°C | 25.6°C | 82 mm | 202 |
| March | 29.6°C | 22.4°C | 26.0°C | 82 mm | 229 |
| April | 30.3°C | 23.1°C | 26.7°C | 123 mm | 218 |
| May | 30.9°C | 24.3°C | 27.6°C | 138 mm | 217 |
| June | 30.9°C | 25.0°C | 28.0°C | 167 mm | 195 |
| July | 30.9°C | 25.0°C | 27.9°C | 198 mm | 216 |
| August | 31.4°C | 24.7°C | 28.1°C | 257 mm | 223 |
| September | 31.7°C | 24.1°C | 27.9°C | 219 mm | 207 |
| October | 31.4°C | 23.8°C | 27.6°C | 257 mm | 205 |
| November | 30.5°C | 23.5°C | 27.0°C | 261 mm | 183 |
| December | 29.6°C | 22.8°C | 26.2°C | 158 mm | 193 |
| Year | 30.4°C | 23.6°C | 27.0°C | 2,057 mm | 2,489 |
Where Les Trois-Îlets’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Lamentin-Aéro, 8.1 km away: statistics for 1991–2020.
- Which station: among stations with at least 24 of the 30 years of temperature and rain, the nearest to the commune’s population-weighted center, counting each 100 m of height difference as 10 km; mainland towns use mainland stations and each overseas département its own.
- Altitudes: the town’s from IGN’s RGE ALTI® at its population-weighted center; the station’s from Météo-France.
- Sunshine: the nearest station with at least 10 years of sunshine records, Lamentin-Aéro, 8.1 km away.
- Comparisons: the towns of 2,500+ in Martinique, read the same way.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Les Trois-Îlets’s climate
How warm does Les Trois-Îlets get in summer?
September is the warmest month, with average highs of 31.7°C. Météo-France publishes no count of hot days for this station.
Does Les Trois-Îlets ever get cool?
Not much: the coolest nights, in February, average 22.1°C.
How much rain does Les Trois-Îlets get?
About 2,057 mm a year. November is the wettest month (261 mm) and February the driest (82 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Lamentin-Aéro (8.1 km away), averages 2,489 hours of sunshine a year.
Are these figures for Les Trois-Îlets itself?
No: they are the normals of the Météo-France station matched to Les Trois-Îlets, Lamentin-Aéro, 8.1 km away. France publishes its climate normals by station, not by commune; a valley, a hill or the sea can make a difference over a few kilometers.
Where do these figures come from?
Météo-France’s fiches climatologiques: 30-year averages (1991–2020) for each of its long-running stations, published as open data since 2024. They are normals, not a forecast.
Source: Météo-France, fiches climatologiques, 1991–2020 statistics (station LAMENTIN-AERO, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Les Trois-Îlets →
Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.