April 2026 has brought intense and widespread rainfall across Kenya, marking the peak of the country’s annual Long Rains season (March to May). This period is typically characterized by sustained downpours, but this year’s rains have been heavier than usual, prompting multiple weather advisories and raising concerns about flooding and safety.
The Kenya Meteorological Department has issued alerts warning of continued rainfall, strong winds, and rough sea conditions through the last week of April.
Heavy Rainfall Advisory (April 22–27)
A nationwide heavy rainfall advisory remains in effect, with many regions expected to receive more than 20mm of rainfall within 24 hours. In some areas, totals may exceed 50mm, increasing the risk of flash floods, especially in low-lying and poorly drained areas.
The situation is further complicated by gusty winds exceeding 25 knots and reduced visibility during storms, making travel and outdoor activities more dangerous.
Coastal and North Eastern Regions on High Alert
The coastal counties of Mombasa, Kwale, and Kilifi are experiencing some of the heaviest rainfall.
In addition to heavy rains, sea conditions have worsened significantly. Waves along the Indian Ocean coastline are expected to exceed 2 metres, posing risks to fishermen, transport vessels, and other marine activities.
In North Eastern Kenya, counties such as Garissa and Wajir are also under high alert due to rising water levels and intermittent heavy showers.
Nairobi and Central Highlands Forecast
In Nairobi and surrounding highland regions like Kiambu County and Murang’a County, the weather pattern has remained consistent.
Mornings are often cloudy, followed by afternoon and evening showers that can become heavy at times. Daytime temperatures average around 25°C to 27°C, while nights can be significantly cooler, occasionally dropping below 10°C in higher elevations.
These conditions have contributed to localized flooding, especially in urban areas with poor drainage systems.
Western Kenya and Rift Valley Outlook
Regions in western Kenya and the Rift Valley, including Kisumu, Kakamega, and Nakuru, are expected to receive near to above-average rainfall.
These areas are likely to experience thunderstorms, particularly in the afternoons and evenings. While the rains support agriculture, they also increase the risk of landslides in hilly areas and flooding near rivers.
Northern Kenya: Heat Meets Rain
Northern counties such as Mandera continue to experience high daytime temperatures, sometimes reaching up to 38°C. However, intermittent rainfall has been reported, creating a mix of hot and humid conditions.
This combination can lead to sudden storms and flash floods, particularly in areas with dry riverbeds that quickly fill during heavy rains.
Temperature Trends Across the Country
Overall, temperatures across Kenya in April 2026 are slightly warmer than average, particularly in coastal and lowland regions. However, the central highlands remain relatively cooler, especially at night.
This variation highlights Kenya’s diverse climate, where multiple weather patterns can occur simultaneously across different regions.
Safety Advisory for Residents
The Kenya Meteorological Service Authority continues to urge residents to take precautions during this period of heavy rainfall.
People are advised to avoid walking or driving through floodwaters, as even shallow moving water can be dangerous. Those living in flood-prone areas or near rivers are encouraged to relocate temporarily to safer ground.
Additionally, during thunderstorms, it is important to avoid sheltering under trees or near metal structures due to the risk of lightning strikes.
Final Word
April 2026 has proven to be a critical month for weather in Kenya, with heavy rains affecting daily life, transport, and safety across the country. While the Long Rains are essential for agriculture and water supply, the intensity seen this year underscores the need for preparedness and awareness.
Staying informed through official weather updates and taking early precautions can make a significant difference in staying safe during this rainy season.
