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Monthly climate in Busia, Kenya

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Busia features a tropical rainforest climate (Af). Temperatures typically range between 21 °C (71 °F) and 24 °C (75 °F) through the year, but rarely can drop to 15 °C (59 °F) or can rise to as high as 35 °C (95 °F). The average annual precipitation amounts to about 2345 mm (92.3 inches) and receives 264 rainy days on the 1 mm (0.04 inches) threshold annually. Busia enjoys an average of 3841 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 Busia, Kenya

The warmest months in Busia are January, February and March, with daily mean temperatures ranging from 23 to 24 °C (74 - 75 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 21 to 22 °C (71 - 72 °F) throughout the day. On average each year, Busia 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 Busia. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum35°C
(94°F)		35°C
(95°F)		34°C
(93°F)		32°C
(90°F)		30°C
(87°F)		29°C
(85°F)		29°C
(85°F)		30°C
(86°F)		30°C
(87°F)		30°C
(87°F)		30°C
(87°F)		32°C
(90°F)
Mean maximum32°C
(89°F)		32°C
(90°F)		32°C
(89°F)		30°C
(86°F)		29°C
(85°F)		28°C
(83°F)		28°C
(83°F)		29°C
(85°F)		30°C
(86°F)		30°C
(85°F)		29°C
(85°F)		30°C
(86°F)
Average high29°C
(84°F)		29°C
(85°F)		28°C
(83°F)		27°C
(82°F)		27°C
(81°F)		27°C
(81°F)		26°C
(80°F)		27°C
(81°F)		27°C
(82°F)		27°C
(82°F)		27°C
(82°F)		28°C
(82°F)
Daily mean23°C
(74°F)		24°C
(75°F)		23°C
(74°F)		23°C
(73°F)		22°C
(72°F)		22°C
(72°F)		21°C
(71°F)		22°C
(72°F)		22°C
(72°F)		22°C
(72°F)		22°C
(73°F)		23°C
(73°F)
Average low19°C
(66°F)		19°C
(67°F)		19°C
(67°F)		19°C
(67°F)		19°C
(66°F)		18°C
(65°F)		18°C
(64°F)		18°C
(64°F)		18°C
(65°F)		19°C
(66°F)		19°C
(66°F)		19°C
(66°F)
Mean minimum17°C
(62°F)		17°C
(63°F)		18°C
(64°F)		17°C
(64°F)		17°C
(64°F)		17°C
(63°F)		16°C
(61°F)		16°C
(61°F)		17°C
(62°F)		17°C
(63°F)		17°C
(63°F)		17°C
(62°F)
Minimum15°C
(60°F)		16°C
(61°F)		17°C
(63°F)		17°C
(62°F)		16°C
(60°F)		15°C
(60°F)		15°C
(59°F)		15°C
(59°F)		17°C
(62°F)		17°C
(63°F)		17°C
(62°F)		16°C
(61°F)

Compare climate in Busia with other places

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

Monthly average precipitation in Busia, Kenya

Busia usually has the most precipitation in April, May and October, with an average of 27 rainy days and 297 mm (11.7 inches) of precipitation per month. The driest months in Busia are January, February and December. On average, 111 mm (4.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Busia. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)92 (3.6)108 (4.2)248 (9.8)316 (12.4)313 (12.3)184 (7.3)140 (5.5)164 (6.4)188 (7.4)263 (10.4)195 (7.7)134 (5.3)
Average precipitation days (≥ 1 mm)121323263025192325262418

Monthly sunshine hours in Busia, Kenya

The sunniest months in Busia are July, August and December, when the sun shines an average of 10 hours 52 minutes a day. Least sunny months in Busia: January, February and April receive an average of 9 hours 50 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Busia. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours278307329299312322331337326328323342
Mean daily daylight hours12h 5m12h 5m12h 5m12h 6m12h 7m12h 8m12h 7m12h 6m12h 5m12h 5m12h 5m12h 5m

Solar UV radiation in Busia, Kenya

Busia 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 November 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 Busia UV Index data.

Average daily maximum UV levels by month for Busia. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)141516151311111313131212