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Weatherman gives update as long rains begin in several regions, including Nairobi

03:42 PM
Weatherman gives update as long rains begin in several regions, including Nairobi

The Kenya Meteorological Department has issued an update on weather conditions across the country as several regions continue to experience rainfall.

The update released on Tuesday, February 24, 2026 confirmed the onset of the March–April–May (MAM) 2026 Long Rains across Kenya.

The weatherman noted that rainfall received since mid-February has met the criteria for the onset of the long rains in several regions, including western, central and highland areas.

Counties experiencing long rains

The onset criteria are defined as the receipt of at least 20 mm of rainfall within three consecutive days, with no dry spell exceeding seven (7) days thereafter.

A flooded road in Nairobi after heavy rains pounded the city. PHOTO/Martin Oduor
A flooded road in Nairobi after heavy rains pounded the city. PHOTO/Martin Oduor

“(KMD) has released an update on the onset of the March–April–May (MAM) 2026 Long Rains across Kenya. Rainfall received since mid-February has met the onset criteria in several regions, including western, central and highland areas,” the statement read in part.

Counties in Highlands West of the Rift Valley, Lake Victoria Basin, Central, and South Rift Valley of Bungoma, Trans Nzoia, Uasin Gishu, West Pokot, Elgeyo-Marakwet, Nandi, Kakamega, Vihiga, Bomet, Kericho, Kisii, Nyamira, Homa Bay, Migori, Kisumu and Busia, Baringo, Nakuru, Western Laikipia and Narok are among those experiencing the long rains, which began in mid-February.

Others are Highlands East of the Rift Valley, including Nairobi, Nyeri, Kirinyaga, Murang’a, Embu, Meru, Kiambu, Nyandarua, and Eastern Laikipia.

Long rains in other parts of the country are predicted to start between late March and mid-April.

“Other parts of the country are expected to experience onset between late March and mid-April,” the weatherman added.

Possibility of reduced rainfall

The update also highlighted the possibility of reduced rainfall and occasional dry spells from mid-March in some areas.

The March to May period is the major rainfall season (Long Rains) over most parts of Kenya and much of equatorial Eastern Africa.

Statement by Kenya MET. PHOTO/ https://x.com/MeteoKenya
Statement by Kenya MET. PHOTO/ https://x.com/MeteoKenya

The highest seasonal rainfall amounts (greater than 300mm) are normally received over the Lake Victoria Basin, the Highlands West of the Rift Valley, the Central and South Rift Valley, the Highlands East of the Rift Valley (including Nairobi County) and the Coastal Strip.

Kenya Met added that rains are expected to continue over several parts of the country, and isolated heavy rainfall events may occur in the Central Highlands, Lake Victoria Basin, Rift Valley, South-eastern Lowlands, Coast, Western, and North-western Kenya.

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Charles Ouma

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