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Monthly climate in Maripasoula, French Guiana

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Maripasoula features a tropical rainforest climate (Af). Temperatures typically range between 25 °C (77 °F) and 28 °C (83 °F) through the year, but rarely can drop to 19 °C (67 °F) or can rise to as high as 39 °C (102 °F). The average annual precipitation amounts to about 2078 mm (81.8 inches) and receives 240 rainy days on the 1 mm (0.04 inches) threshold annually. Maripasoula enjoys an average of 3344 hours of sunshine throughout the year, and daylight varies from 11 hours 54 minutes to 12 hours 18 minutes per day.

Monthly average temperatures in Maripasoula, French Guiana

The warmest months in Maripasoula are September, October and November, with daily mean temperatures ranging from 27 to 28 °C (81 - 83 °F) throughout the day. The coldest temperatures usually occur in January, February and May, when daily mean temperatures range from 25 to 25 °C (77 - 78 °F) throughout the day. On average each year, Maripasoula experiences 327 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 Maripasoula. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum33°C
(92°F)		33°C
(91°F)		35°C
(95°F)		34°C
(93°F)		33°C
(92°F)		33°C
(92°F)		33°C
(92°F)		36°C
(96°F)		39°C
(102°F)		37°C
(100°F)		38°C
(100°F)		36°C
(96°F)
Mean maximum32°C
(90°F)		32°C
(90°F)		33°C
(92°F)		33°C
(92°F)		32°C
(90°F)		31°C
(89°F)		32°C
(91°F)		35°C
(94°F)		37°C
(98°F)		37°C
(98°F)		36°C
(98°F)		33°C
(92°F)
Average high30°C
(85°F)		29°C
(85°F)		30°C
(87°F)		30°C
(86°F)		29°C
(85°F)		30°C
(86°F)		30°C
(87°F)		32°C
(90°F)		34°C
(94°F)		35°C
(95°F)		33°C
(92°F)		30°C
(87°F)
Daily mean25°C
(77°F)		25°C
(77°F)		26°C
(78°F)		25°C
(78°F)		25°C
(78°F)		25°C
(78°F)		26°C
(78°F)		26°C
(80°F)		28°C
(82°F)		28°C
(83°F)		27°C
(81°F)		26°C
(78°F)
Average low23°C
(73°F)		23°C
(73°F)		23°C
(73°F)		23°C
(74°F)		23°C
(74°F)		23°C
(73°F)		22°C
(73°F)		23°C
(73°F)		23°C
(74°F)		23°C
(74°F)		24°C
(75°F)		23°C
(74°F)
Mean minimum21°C
(69°F)		21°C
(70°F)		22°C
(71°F)		21°C
(71°F)		22°C
(72°F)		22°C
(71°F)		22°C
(71°F)		22°C
(71°F)		22°C
(71°F)		22°C
(72°F)		22°C
(73°F)		21°C
(71°F)
Minimum19°C
(67°F)		20°C
(68°F)		21°C
(69°F)		21°C
(69°F)		22°C
(71°F)		21°C
(70°F)		21°C
(70°F)		21°C
(70°F)		21°C
(70°F)		22°C
(71°F)		22°C
(72°F)		19°C
(67°F)

Compare climate in Maripasoula with other places

Compare temperature, precipitation, sunshine, UV index in Maripasoula, French Guiana with other places around the world.

Monthly average precipitation in Maripasoula, French Guiana

Maripasoula usually has the most precipitation in April, May and June, with an average of 26 rainy days and 321 mm (12.6 inches) of precipitation per month. The driest months in Maripasoula are August, September and October. On average, 58 mm (2.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Maripasoula. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)152 (6.0)128 (5.0)147 (5.8)306 (12.1)376 (14.8)282 (11.1)187 (7.4)90 (3.6)55 (2.2)29 (1.2)105 (4.1)220 (8.7)
Average precipitation days (≥ 1 mm)2020202429272516971726

Monthly sunshine hours in Maripasoula, French Guiana

The sunniest months in Maripasoula are August, September and October, when the sun shines an average of 10 hours 53 minutes a day. Least sunny months in Maripasoula: January, February and May receive an average of 7 hours 26 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Maripasoula. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours226224283240225268307334330336292275
Mean daily daylight hours11h 55m11h 59m12h 5m12h 11m12h 16m12h 18m12h 17m12h 12m12h 6m12h 1m11h 56m11h 54m

Solar UV radiation in Maripasoula, French Guiana

Maripasoula experiences the highest level of ultraviolet (UV) radiation in February, March and April, when the maximum UV index can reach values of 15 - 16, which corresponds to the Extreme category of sun exposure. June, July and December are in the Extreme exposure category. In these months, the maximum values of the UV index do not exceed 12. For more detailed information, check out our hourly Maripasoula UV Index data.

Average daily maximum UV levels by month for Maripasoula. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)141516161412121313131312