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Monthly climate in Iracoubo, French Guiana

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Iracoubo features a tropical rainforest climate (Af). Temperatures typically range between 26 °C (79 °F) and 28 °C (82 °F) through the year, but rarely can drop to 23 °C (73 °F) or can rise to as high as 32 °C (91 °F). The average annual precipitation amounts to about 2593 mm (102.1 inches) and receives 303 rainy days on the 1 mm (0.04 inches) threshold annually. Iracoubo enjoys an average of 3623 hours of sunshine throughout the year, and daylight varies from 11 hours 48 minutes to 12 hours 25 minutes per day.

Monthly average temperatures in Iracoubo, French Guiana

The warmest months in Iracoubo are August, September and October, with daily mean temperatures ranging from 27 to 28 °C (82 - 82 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 26 to 26 °C (79 - 79 °F) throughout the day. On average each year, Iracoubo experiences 329 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 Iracoubo. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum30°C
(86°F)		29°C
(85°F)		30°C
(86°F)		30°C
(86°F)		30°C
(86°F)		31°C
(89°F)		31°C
(89°F)		32°C
(91°F)		32°C
(90°F)		32°C
(89°F)		31°C
(88°F)		30°C
(86°F)
Mean maximum29°C
(85°F)		29°C
(84°F)		29°C
(85°F)		30°C
(86°F)		30°C
(86°F)		30°C
(86°F)		31°C
(88°F)		32°C
(89°F)		32°C
(89°F)		31°C
(89°F)		31°C
(88°F)		30°C
(85°F)
Average high28°C
(82°F)		28°C
(82°F)		28°C
(83°F)		28°C
(83°F)		28°C
(83°F)		29°C
(84°F)		29°C
(85°F)		30°C
(86°F)		30°C
(87°F)		30°C
(86°F)		29°C
(85°F)		28°C
(83°F)
Daily mean26°C
(79°F)		26°C
(79°F)		26°C
(79°F)		26°C
(80°F)		26°C
(80°F)		26°C
(80°F)		27°C
(80°F)		27°C
(82°F)		28°C
(82°F)		27°C
(82°F)		27°C
(81°F)		26°C
(79°F)
Average low25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		25°C
(78°F)		25°C
(78°F)		25°C
(78°F)		25°C
(78°F)		25°C
(77°F)
Mean minimum24°C
(75°F)		24°C
(75°F)		23°C
(75°F)		24°C
(75°F)		24°C
(75°F)		24°C
(76°F)		24°C
(75°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(75°F)
Minimum23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		23°C
(73°F)		23°C
(74°F)		24°C
(75°F)		23°C
(73°F)		24°C
(75°F)		24°C
(76°F)		24°C
(76°F)		23°C
(74°F)		23°C
(74°F)

Compare climate in Iracoubo with other places

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

Monthly average precipitation in Iracoubo, French Guiana

Iracoubo usually has the most precipitation in April, May and June, with an average of 28 rainy days and 387 mm (15.2 inches) of precipitation per month. The driest months in Iracoubo are February, September and October. On average, 92 mm (3.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Iracoubo. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)156 (6.1)119 (4.7)139 (5.5)327 (12.9)438 (17.3)395 (15.6)257 (10.1)132 (5.2)85 (3.3)74 (2.9)202 (7.9)269 (10.6)
Average precipitation days (≥ 1 mm)222324273029302220202729

Monthly sunshine hours in Iracoubo, French Guiana

The sunniest months in Iracoubo are August, September and October, when the sun shines an average of 11 hours 8 minutes a day. Least sunny months in Iracoubo: January, February and May receive an average of 8 hours 43 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Iracoubo. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours251265318284276280328346336342302291
Mean daily daylight hours11h 49m11h 56m12h 4m12h 13m12h 21m12h 25m12h 23m12h 16m12h 7m11h 58m11h 51m11h 48m

Solar UV radiation in Iracoubo, French Guiana

Iracoubo experiences the highest level of ultraviolet (UV) radiation in March, April and May, when the maximum UV index can reach values of 14 - 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 13. For more detailed information, check out our hourly Iracoubo UV Index data.

Average daily maximum UV levels by month for Iracoubo. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)131416161413121313131311