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Monthly climate in Ouesso, Congo

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Ouesso features a tropical monsoon climate (Am). Temperatures typically range between 25 °C (77 °F) and 27 °C (80 °F) through the year, but rarely can drop to 16 °C (61 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 1312 mm (51.6 inches) and receives 211 rainy days on the 1 mm (0.04 inches) threshold annually. Ouesso enjoys an average of 3548 hours of sunshine throughout the year, and daylight varies from 12 hours 1 minutes to 12 hours 12 minutes per day.

Monthly average temperatures in Ouesso, Congo

The warmest months in Ouesso are February, March and April, with daily mean temperatures ranging from 26 to 27 °C (80 - 80 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 25 to 25 °C (77 - 77 °F) throughout the day. On average each year, Ouesso experiences 324 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 Ouesso. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum35°C
(95°F)		37°C
(99°F)		36°C
(98°F)		37°C
(98°F)		36°C
(96°F)		34°C
(93°F)		31°C
(89°F)		33°C
(91°F)		34°C
(93°F)		34°C
(93°F)		34°C
(93°F)		33°C
(92°F)
Mean maximum33°C
(92°F)		35°C
(95°F)		36°C
(96°F)		35°C
(95°F)		34°C
(93°F)		33°C
(91°F)		31°C
(88°F)		32°C
(90°F)		33°C
(92°F)		33°C
(91°F)		33°C
(91°F)		33°C
(91°F)
Average high31°C
(88°F)		32°C
(90°F)		32°C
(89°F)		32°C
(89°F)		31°C
(88°F)		30°C
(87°F)		29°C
(84°F)		29°C
(85°F)		29°C
(85°F)		30°C
(86°F)		30°C
(86°F)		30°C
(87°F)
Daily mean26°C
(79°F)		27°C
(80°F)		26°C
(80°F)		27°C
(80°F)		26°C
(79°F)		26°C
(78°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		25°C
(78°F)		26°C
(79°F)
Average low22°C
(71°F)		22°C
(73°F)		23°C
(73°F)		23°C
(73°F)		23°C
(73°F)		22°C
(73°F)		22°C
(72°F)		22°C
(72°F)		22°C
(72°F)		22°C
(72°F)		22°C
(72°F)		22°C
(73°F)
Mean minimum19°C
(66°F)		20°C
(68°F)		21°C
(70°F)		21°C
(71°F)		21°C
(71°F)		21°C
(70°F)		21°C
(69°F)		21°C
(69°F)		21°C
(70°F)		21°C
(70°F)		21°C
(70°F)		21°C
(70°F)
Minimum16°C
(61°F)		17°C
(62°F)		20°C
(69°F)		21°C
(69°F)		21°C
(70°F)		20°C
(68°F)		21°C
(69°F)		20°C
(69°F)		21°C
(70°F)		21°C
(69°F)		21°C
(69°F)		21°C
(69°F)

Compare climate in Ouesso with other places

Compare temperature, precipitation, sunshine, UV index in Ouesso, Congo with other places around the world.

Monthly average precipitation in Ouesso, Congo

Ouesso usually has the most precipitation in September, October and November, with an average of 24 rainy days and 165 mm (6.5 inches) of precipitation per month. The driest months in Ouesso are January, February and December. On average, 50 mm (2.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Ouesso. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)35 (1.4)58 (2.3)137 (5.4)140 (5.5)109 (4.3)76 (3.0)94 (3.7)112 (4.4)166 (6.5)183 (7.2)145 (5.7)57 (2.3)
Average precipitation days (≥ 1 mm)71019181916172126262012

Monthly sunshine hours in Ouesso, Congo

The sunniest months in Ouesso are March, May and December, when the sun shines an average of 10 hours 7 minutes a day. Least sunny months in Ouesso: January, February and October receive an average of 9 hours 5 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Ouesso. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours264288309306310304292290288273296321
Mean daily daylight hours12h 1m12h 3m12h 5m12h 8m12h 10m12h 12m12h 11m12h 9m12h 6m12h 3m12h 1m12h 1m

Solar UV radiation in Ouesso, Congo

Ouesso experiences the highest level of ultraviolet (UV) radiation in April, May and September, when the maximum UV index can reach values of 13 - 14, 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 11. For more detailed information, check out our hourly Ouesso UV Index data.

Average daily maximum UV levels by month for Ouesso. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)121213141311111113131211