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Monthly climate in Garissa, Kenya

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Garissa features a hot semi-arid climate (BSh). Temperatures typically range between 27 °C (80 °F) and 30 °C (87 °F) through the year, but rarely can drop to 20 °C (69 °F) or can rise to as high as 39 °C (103 °F). The average annual precipitation amounts to about 284 mm (11.2 inches) and receives 48 rainy days on the 1 mm (0.04 inches) threshold annually. Garissa enjoys an average of 3965 hours of sunshine throughout the year, and daylight varies from 12 hours 5 minutes to 12 hours 8 minutes per day.

Monthly average temperatures in Garissa, Kenya

The warmest months in Garissa are February, March and April, with daily mean temperatures ranging from 30 to 30 °C (86 - 87 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 27 to 28 °C (80 - 82 °F) throughout the day. On average each year, Garissa 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 Garissa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum38°C
(100°F)		38°C
(101°F)		39°C
(103°F)		39°C
(103°F)		37°C
(100°F)		36°C
(97°F)		35°C
(95°F)		35°C
(95°F)		36°C
(96°F)		38°C
(100°F)		37°C
(99°F)		37°C
(99°F)
Mean maximum37°C
(99°F)		38°C
(100°F)		38°C
(101°F)		38°C
(100°F)		36°C
(97°F)		35°C
(94°F)		34°C
(93°F)		34°C
(94°F)		35°C
(96°F)		37°C
(98°F)		37°C
(98°F)		36°C
(97°F)
Average high35°C
(95°F)		36°C
(97°F)		36°C
(98°F)		36°C
(96°F)		34°C
(93°F)		33°C
(91°F)		32°C
(90°F)		32°C
(90°F)		33°C
(92°F)		35°C
(94°F)		34°C
(94°F)		34°C
(93°F)
Daily mean29°C
(85°F)		30°C
(86°F)		30°C
(87°F)		30°C
(86°F)		28°C
(83°F)		28°C
(82°F)		27°C
(80°F)		27°C
(80°F)		28°C
(82°F)		29°C
(84°F)		29°C
(84°F)		29°C
(84°F)
Average low24°C
(75°F)		25°C
(77°F)		25°C
(78°F)		26°C
(78°F)		24°C
(76°F)		23°C
(74°F)		23°C
(73°F)		22°C
(72°F)		23°C
(73°F)		24°C
(75°F)		25°C
(77°F)		24°C
(76°F)
Mean minimum22°C
(72°F)		23°C
(73°F)		24°C
(75°F)		24°C
(75°F)		23°C
(73°F)		23°C
(73°F)		21°C
(71°F)		21°C
(70°F)		21°C
(71°F)		22°C
(72°F)		23°C
(74°F)		23°C
(73°F)
Minimum21°C
(70°F)		21°C
(70°F)		23°C
(74°F)		23°C
(74°F)		22°C
(72°F)		21°C
(71°F)		21°C
(70°F)		20°C
(69°F)		21°C
(69°F)		21°C
(70°F)		23°C
(73°F)		22°C
(73°F)

Compare climate in Garissa with other places

Compare temperature, precipitation, sunshine, UV index in Garissa, Kenya with other places around the world.

Monthly average precipitation in Garissa, Kenya

Garissa usually has the most precipitation in April, November and December, with an average of 9 rainy days and 58 mm (2.3 inches) of precipitation per month. The driest months in Garissa are February, June and July. On average, 3 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Garissa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)18 (0.7)3 (0.1)24 (0.9)46 (1.8)23 (0.9)4 (0.2)3 (0.1)6 (0.2)9 (0.3)20 (0.8)76 (3.0)51 (2.0)
Average precipitation days (≥ 1 mm)21310600025118

Monthly sunshine hours in Garissa, Kenya

The sunniest months in Garissa are March, May and December, when the sun shines an average of 11 hours 15 minutes a day. Least sunny months in Garissa: January, June and September receive an average of 10 hours 16 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Garissa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours291324353335344322325325321342329349
Mean daily daylight hours12h 7m12h 6m12h 5m12h 5m12h 5m12h 5m12h 5m12h 5m12h 5m12h 6m12h 7m12h 8m

Solar UV radiation in Garissa, Kenya

Garissa 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 October 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 Garissa UV Index data.

Average daily maximum UV levels by month for Garissa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)141516151411111314131313