Prepare for Downpours: Kenya Met Issues Updated Rainfall Forecast For The Week

The Kenya Meteorological Department (Kenya Met) has issued an updated weather advisory for the week of April 21 to April 27, 2026, warning of continued rainfall across several parts of the country. As the “Long Rains” season enters its peak, the department has identified specific regions likely to experience heavy downpours, occasional thunderstorms, and potential localized flooding.

According to the latest bulletin released from the Dagoretti Corner headquarters, the rainfall is expected to be concentrated in the Highlands both East and West of the Rift Valley, the Lake Victoria Basin, and parts of the Coast.

Regions Expecting Heavy Rainfall

The forecast indicates that rainfall will be most intense in the following areas:

• The Lake Victoria Basin & South Rift Valley: Regions including Kisumu, Homabay, Migori, Kisii, Kericho, and Bomet are expected to receive afternoon showers and thunderstorms throughout the week.

• Highlands West of the Rift Valley: Counties such as Kakamega, Bungoma, and Trans Nzoia will likely experience consistent rainfall, with some areas receiving over 40mm in a single day.

• Central Highlands (Including Nairobi): Residents of Nairobi, Nyandarua, Laikipia, Nyeri, and Murang’a should prepare for cloudy mornings giving way to afternoon and evening showers.

• The Coastal Strip: Kwale, Kilifi, and Mombasa counties are forecasted to receive moderate rainfall, primarily in the morning hours, driven by monsoon winds.

Flash Flood Warnings and Safety Alerts

With the ground already saturated from previous weeks of rain, Kenya Met has warned of an increased risk of flash floods, particularly in urban areas with poor drainage and in low-lying regions.

“Drivers and pedestrians are urged to avoid crossing flooded roads or seasonal hairpins,” the department stated. “Visibility may also be reduced during heavy downpours, especially along the Nairobi-Nakuru and Eldoret-Malaba highways.”

The department also highlighted the risk of lightning strikes in the Western and Lake Victoria regions, advising residents to avoid sheltering under trees or near metallic structures during storms.

Impact on Agriculture and Transport

While the rains pose a challenge to commuters and urban dwellers, they remain a welcome sight for farmers. The Ministry of Agriculture has noted that the current moisture levels are ideal for the growth of maize and bean crops planted in late March. However, farmers in hilly areas like Murang’a and Kisii have been cautioned against landslides, with the Met Department advising those on steep slopes to remain vigilant for cracks in the ground.

The “Dry” Exception

In contrast, the North-Eastern and North-Western parts of Kenya, including Mandera, Wajir, and parts of Turkana, are expected to remain generally dry and hot, with temperatures hovering between 32°C and 38°C.

The Bottom Line: If you are in the southern half of the country or the highlands, keep your umbrella close and plan for potential traffic delays during the evening commute. The Met Department will continue to provide 24-hour updates as the weather patterns shift.