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Monthly climate in Grand'Riviere, Martinique

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Grand'Riviere features a tropical rainforest climate (Af). Temperatures typically range between 25 °C (77 °F) and 28 °C (82 °F) through the year, but rarely can drop to 22 °C (72 °F) or can rise to as high as 30 °C (87 °F). The average annual precipitation amounts to about 616 mm (24.3 inches) and receives 131 rainy days on the 1 mm (0.04 inches) threshold annually. Grand'Riviere enjoys an average of 3916 hours of sunshine throughout the year, and daylight varies from 11 hours 15 minutes to 12 hours 58 minutes per day.

Monthly average temperatures in Grand'Riviere, Martinique

The warmest months in Grand'Riviere are August, September and October, with daily mean temperatures ranging from 27 to 28 °C (81 - 82 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 25 to 25 °C (77 - 78 °F) throughout the day. On average each year, Grand'Riviere experiences 328 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Grand'Riviere. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum28°C
(82°F)		28°C
(83°F)		28°C
(83°F)		29°C
(84°F)		30°C
(86°F)		30°C
(86°F)		30°C
(86°F)		30°C
(86°F)		30°C
(87°F)		30°C
(86°F)		29°C
(84°F)		29°C
(84°F)
Mean maximum27°C
(81°F)		27°C
(81°F)		28°C
(82°F)		28°C
(84°F)		29°C
(85°F)		29°C
(85°F)		29°C
(85°F)		30°C
(85°F)		30°C
(86°F)		30°C
(86°F)		29°C
(84°F)		28°C
(83°F)
Average high26°C
(80°F)		26°C
(80°F)		27°C
(80°F)		27°C
(82°F)		28°C
(83°F)		28°C
(83°F)		28°C
(84°F)		29°C
(84°F)		29°C
(84°F)		28°C
(83°F)		28°C
(82°F)		27°C
(81°F)
Daily mean25°C
(78°F)		25°C
(77°F)		25°C
(78°F)		26°C
(79°F)		27°C
(80°F)		27°C
(81°F)		27°C
(81°F)		27°C
(81°F)		28°C
(82°F)		27°C
(81°F)		27°C
(80°F)		26°C
(79°F)
Average low24°C
(76°F)		24°C
(75°F)		24°C
(76°F)		25°C
(77°F)		25°C
(78°F)		26°C
(79°F)		26°C
(79°F)		26°C
(79°F)		26°C
(80°F)		26°C
(79°F)		26°C
(78°F)		25°C
(77°F)
Mean minimum23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		24°C
(75°F)		24°C
(76°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		25°C
(78°F)		25°C
(77°F)		25°C
(77°F)		24°C
(75°F)
Minimum23°C
(73°F)		22°C
(72°F)		23°C
(73°F)		23°C
(74°F)		24°C
(75°F)		24°C
(76°F)		25°C
(77°F)		25°C
(76°F)		25°C
(78°F)		24°C
(76°F)		24°C
(76°F)		24°C
(75°F)

Compare climate in Grand'Riviere with other places

Compare temperature, precipitation, sunshine, UV index in Grand'Riviere, Martinique with other places around the world.

Monthly average precipitation in Grand'Riviere, Martinique

Grand'Riviere usually has the most precipitation in August, September and October, with an average of 18 rainy days and 95 mm (3.7 inches) of precipitation per month. The driest months in Grand'Riviere are January, February and April. On average, 19 mm (0.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Grand'Riviere. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)19 (0.7)19 (0.8)21 (0.8)18 (0.7)21 (0.8)47 (1.8)74 (2.9)90 (3.6)99 (3.9)96 (3.8)86 (3.4)26 (1.0)
Average precipitation days (≥ 1 mm)76754916191718149

Monthly sunshine hours in Grand'Riviere, Martinique

The sunniest months in Grand'Riviere are May, July and August, when the sun shines an average of 11 hours 21 minutes a day. Least sunny months in Grand'Riviere: January, February and November receive an average of 9 hours 48 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Grand'Riviere. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours267304346337356326352347318320311329
Mean daily daylight hours11h 20m11h 39m12h 2m12h 27m12h 48m12h 58m12h 53m12h 34m12h 11m11h 46m11h 25m11h 15m

Solar UV radiation in Grand'Riviere, Martinique

Grand'Riviere experiences the highest level of ultraviolet (UV) radiation in April, May and July, when the maximum UV index can reach values of 14 - 14, which corresponds to the Extreme category of sun exposure. January, November and December are in the Very High exposure category. In these months, the maximum values of the UV index do not exceed 10. For more detailed information, check out our hourly Grand'Riviere UV Index data.

Average daily maximum UV levels by month for Grand'Riviere. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)10111314141314131312109