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Monthly climate in Garoua Boulai, Cameroon

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Garoua Boulai features a tropical savanna climate (Aw). Temperatures typically range between 22 °C (72 °F) and 26 °C (79 °F) through the year, but rarely can drop to 13 °C (57 °F) or can rise to as high as 37 °C (100 °F). The average annual precipitation amounts to about 1439 mm (56.7 inches) and receives 197 rainy days on the 1 mm (0.04 inches) threshold annually. Garoua Boulai enjoys an average of 3700 hours of sunshine throughout the year, and daylight varies from 11 hours 46 minutes to 12 hours 26 minutes per day.

Monthly average temperatures in Garoua Boulai, Cameroon

The warmest months in Garoua Boulai are January, February and March, with daily mean temperatures ranging from 25 to 26 °C (77 - 79 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 22 to 22 °C (72 - 72 °F) throughout the day. On average each year, Garoua Boulai experiences 308 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 Garoua Boulai. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum36°C
(96°F)		37°C
(100°F)		37°C
(99°F)		34°C
(94°F)		33°C
(91°F)		31°C
(88°F)		30°C
(87°F)		30°C
(85°F)		31°C
(88°F)		31°C
(89°F)		33°C
(92°F)		35°C
(94°F)
Mean maximum34°C
(94°F)		36°C
(97°F)		36°C
(97°F)		33°C
(92°F)		31°C
(89°F)		29°C
(85°F)		29°C
(84°F)		29°C
(84°F)		30°C
(87°F)		31°C
(88°F)		33°C
(91°F)		34°C
(93°F)
Average high32°C
(90°F)		33°C
(92°F)		32°C
(91°F)		30°C
(86°F)		28°C
(83°F)		27°C
(81°F)		26°C
(79°F)		26°C
(79°F)		27°C
(81°F)		28°C
(83°F)		30°C
(86°F)		32°C
(90°F)
Daily mean25°C
(77°F)		26°C
(79°F)		26°C
(79°F)		24°C
(76°F)		23°C
(74°F)		23°C
(73°F)		22°C
(72°F)		22°C
(72°F)		22°C
(72°F)		23°C
(73°F)		24°C
(75°F)		25°C
(76°F)
Average low17°C
(63°F)		19°C
(66°F)		21°C
(70°F)		20°C
(69°F)		20°C
(68°F)		19°C
(67°F)		19°C
(67°F)		19°C
(67°F)		19°C
(67°F)		19°C
(67°F)		19°C
(66°F)		18°C
(64°F)
Mean minimum15°C
(59°F)		16°C
(62°F)		18°C
(65°F)		19°C
(66°F)		18°C
(66°F)		18°C
(65°F)		18°C
(65°F)		18°C
(65°F)		18°C
(64°F)		18°C
(65°F)		16°C
(62°F)		16°C
(61°F)
Minimum13°C
(57°F)		16°C
(61°F)		17°C
(64°F)		18°C
(64°F)		18°C
(65°F)		18°C
(64°F)		18°C
(64°F)		18°C
(65°F)		17°C
(62°F)		17°C
(64°F)		14°C
(58°F)		15°C
(59°F)

Compare climate in Garoua Boulai with other places

Compare temperature, precipitation, sunshine, UV index in Garoua Boulai, Cameroon with other places around the world.

Monthly average precipitation in Garoua Boulai, Cameroon

Garoua Boulai usually has the most precipitation in June, September and October, with an average of 26 rainy days and 214 mm (8.4 inches) of precipitation per month. The driest months in Garoua Boulai are January, February and December. On average, 2 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Garoua Boulai. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)1 (0.0)4 (0.2)54 (2.1)149 (5.9)190 (7.5)196 (7.7)182 (7.2)187 (7.4)248 (9.8)197 (7.8)31 (1.2)0 (0.0)
Average precipitation days (≥ 1 mm)0192325272726282560

Monthly sunshine hours in Garoua Boulai, Cameroon

The sunniest months in Garoua Boulai are March, November and December, when the sun shines an average of 10 hours 43 minutes a day. Least sunny months in Garoua Boulai: January, August and September receive an average of 9 hours 12 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Garoua Boulai. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours276303329317321313293280289316321335
Mean daily daylight hours11h 48m11h 55m12h 4m12h 14m12h 22m12h 26m12h 24m12h 17m12h 7m11h 58m11h 50m11h 46m

Solar UV radiation in Garoua Boulai, Cameroon

Garoua Boulai experiences the highest level of ultraviolet (UV) radiation in March, April and May, when the maximum UV index can reach values of 14 - 15, which corresponds to the Extreme category of sun exposure. June, November 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 Garoua Boulai UV Index data.

Average daily maximum UV levels by month for Garoua Boulai. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)121314151412131313131111