Kenya MET Warns of Heavy Rainfall and Flooding Across Several Regions

The Kenya Meteorological Service has warned that heavy rainfall is expected across several parts of the country from Friday, 8 May to Tuesday, 12 May 2026, with flooding likely in some areas.

Western Kenya, the Rift Valley and the Lake Victoria Basin are expected to receive the heaviest rainfall during the period. Counties including Siaya, Kisumu, Homa Bay, Migori, Kisii, Nyamira, Trans Nzoia and Baringo are forecast to experience heavy afternoon showers, following cloudy mornings and occasional rain. 

Similar conditions are expected in Uasin Gishu, Elgeyo Marakwet, Nandi, Nakuru, Narok, Kericho, Bomet, Kakamega, Vihiga, Bungoma, Busia and West Pokot.

Central Kenya is also likely to experience significant rainfall, accompanied by thunderstorms in some areas. 

The forecast covers Nyandarua, Laikipia, Nyeri, Kirinyaga, Murang’a, Kiambu, Meru, Embu, Tharaka Nithi and Nairobi. Residents in flood-prone areas have been advised to remain cautious as heavy rain may disrupt transport and damage property. Parts of Nairobi, including the central business district and Parklands, have already experienced flooding following recent rainfall.

At the coast, Mombasa, Kilifi, Lamu, Kwale and the Tana Delta are expected to receive moderate rainfall. Although conditions there are forecast to be less severe than inland regions, rain could still affect transport and daily activities. Meanwhile, the south-eastern lowlands, including Machakos, Kitui and Makueni, are expected to remain mostly dry under cloudy conditions.

The Meteorological Service has also warned of low night-time temperatures in parts of Central Kenya. Temperatures in Nyandarua, Laikipia, Nyeri and Nairobi may fall to about 9°C. In contrast, daytime temperatures in northern Kenya and coastal areas could rise to 37°C.

The weather conditions are expected to affect several sectors, including agriculture, transport and public health. While the rainfall may improve water availability and support farming, it could also increase the risk of soil erosion, crop damage and waterborne diseases. 

In urban areas such as Nairobi, poor drainage systems continue to increase the likelihood of flooding and traffic disruption during periods of heavy rain. Authorities have advised residents in flood-prone areas to remain alert and take necessary precautions. 

People living in colder regions have also been encouraged to protect themselves against low temperatures.