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Monthly climate in Mumias, Kenya

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Mumias features a tropical rainforest climate (Af). Temperatures typically range between 21 °C (70 °F) and 23 °C (74 °F) through the year, but rarely can drop to 14 °C (58 °F) or can rise to as high as 35 °C (95 °F). The average annual precipitation amounts to about 2031 mm (79.9 inches) and receives 274 rainy days on the 1 mm (0.04 inches) threshold annually. Mumias enjoys an average of 3846 hours of sunshine throughout the year, and daylight varies from 12 hours 5 minutes to 12 hours 7 minutes per day.

Monthly average temperatures in Mumias, Kenya

The warmest months in Mumias are January, February and March, with daily mean temperatures ranging from 23 to 23 °C (73 - 74 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 21 to 21 °C (70 - 70 °F) throughout the day. On average each year, Mumias experiences 296 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 Mumias. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum34°C
(93°F)		34°C
(94°F)		35°C
(95°F)		33°C
(92°F)		30°C
(87°F)		29°C
(84°F)		29°C
(84°F)		29°C
(84°F)		31°C
(88°F)		31°C
(87°F)		31°C
(88°F)		33°C
(91°F)
Mean maximum32°C
(90°F)		32°C
(91°F)		32°C
(90°F)		31°C
(88°F)		29°C
(84°F)		28°C
(82°F)		28°C
(82°F)		28°C
(83°F)		29°C
(85°F)		30°C
(86°F)		30°C
(86°F)		31°C
(88°F)
Average high29°C
(84°F)		29°C
(85°F)		29°C
(84°F)		27°C
(82°F)		27°C
(80°F)		26°C
(80°F)		26°C
(79°F)		27°C
(80°F)		27°C
(81°F)		27°C
(81°F)		28°C
(82°F)		28°C
(83°F)
Daily mean23°C
(73°F)		23°C
(74°F)		23°C
(73°F)		22°C
(72°F)		22°C
(71°F)		21°C
(70°F)		21°C
(70°F)		21°C
(70°F)		21°C
(71°F)		22°C
(71°F)		22°C
(72°F)		22°C
(72°F)
Average low17°C
(64°F)		18°C
(65°F)		18°C
(65°F)		18°C
(65°F)		18°C
(64°F)		17°C
(63°F)		17°C
(63°F)		17°C
(63°F)		17°C
(63°F)		18°C
(64°F)		17°C
(64°F)		17°C
(64°F)
Mean minimum15°C
(60°F)		16°C
(61°F)		16°C
(62°F)		17°C
(62°F)		16°C
(62°F)		16°C
(61°F)		15°C
(60°F)		15°C
(60°F)		16°C
(61°F)		16°C
(61°F)		16°C
(61°F)		16°C
(61°F)
Minimum14°C
(58°F)		15°C
(59°F)		16°C
(60°F)		16°C
(61°F)		15°C
(60°F)		15°C
(59°F)		14°C
(58°F)		14°C
(58°F)		15°C
(59°F)		16°C
(61°F)		15°C
(60°F)		15°C
(60°F)

Compare climate in Mumias with other places

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

Monthly average precipitation in Mumias, Kenya

Mumias usually has the most precipitation in April, May and October, with an average of 27 rainy days and 249 mm (9.8 inches) of precipitation per month. The driest months in Mumias are January, February and July. On average, 105 mm (4.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Mumias. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)91 (3.6)92 (3.6)180 (7.1)262 (10.3)267 (10.5)147 (5.8)133 (5.2)156 (6.1)166 (6.5)219 (8.6)178 (7.0)142 (5.6)
Average precipitation days (≥ 1 mm)121423262924222526282520

Monthly sunshine hours in Mumias, Kenya

The sunniest months in Mumias are March, August and December, when the sun shines an average of 10 hours 52 minutes a day. Least sunny months in Mumias: January, February and April receive an average of 9 hours 52 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Mumias. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours277307331302315320328335327330324343
Mean daily daylight hours12h 5m12h 5m12h 5m12h 6m12h 7m12h 7m12h 7m12h 6m12h 6m12h 5m12h 5m12h 5m

Solar UV radiation in Mumias, Kenya

Mumias 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 Mumias UV Index data.

Average daily maximum UV levels by month for Mumias. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)141516151311111313131312