The Kenya Meteorological Department (KMD) has released the latest rainfall forecast highlighting regions expected to receive rainfall between September 16 and 22, 2025.
The forecast shows a mixed pattern, with some areas set to experience heavy downpours while others will remain relatively dry.
Key Forecasts
Western Kenya and Lake Victoria Basin
Counties in Western Kenya and the Lake Victoria Basin are expected to record the highest rainfall amounts during the forecast period.
Areas including Kakamega, Kisumu, Siaya, Migori, Homa Bay, Vihiga, Busia, Bungoma, and Kericho are projected to receive between 20mm and 70mm of rainfall.
Kenya Met has warned that parts of these counties, especially those around Lake Victoria, may experience rainfall exceeding 70mm, raising the likelihood of flash floods and waterlogging in low-lying areas.
Farmers and residents in these regions have been advised to prepare for possible disruptions to transport, agriculture, and daily activities.
Central Highlands and Rift Valley
The Central Highlands and parts of the Rift Valley will also receive moderate rainfall, which will benefit agricultural activities in the region.
Counties such as Nakuru, Bomet, Nyandarua, Nyeri, Kiambu, Murang’a, Kirinyaga, and Embu are expected to record 10mm to 50mm of rainfall during the period.
The Aberdare Ranges and areas surrounding Mount Kenya are forecast to receive higher rainfall totals, in some places exceeding 70mm.
This could result in localized flooding and minor landslides, particularly in hilly areas where soil saturation is high.
Kenya Met has encouraged taking advantage of these rains to plant short-term crops, while authorities are urged to monitor landslide-prone zones closely.
Coastal Counties
The coastal strip is expected to experience widespread rainfall, with Kwale, Mombasa, Kilifi, and Tana River counties projected to record some of the highest amounts in the country.
Certain areas, especially in southern Kwale and parts of Kilifi, could see rainfall exceeding 100mm over the seven-day period.
This heavy rainfall may lead to localized flooding, particularly in low-lying and poorly drained areas.
Residents have been urged to remain alert and take necessary precautions to minimize the impact of the expected heavy downpours.
The forecast indicates that North-Eastern and parts of Eastern Kenya will receive light to moderate rainfall.
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Counties such as Garissa, Wajir, Mandera, Kitui, and Makueni are expected to record totals mostly below 20mm, although isolated areas could receive up to 50mm.
This rainfall is not expected to cause flooding and will provide some relief to pastoral communities in these semi-arid areas where water scarcity remains a challenge.
Northern Kenya and ASAL Regions
The Arid and Semi-Arid Lands (ASAL) regions, including Turkana, Marsabit, Samburu, and parts of Isiolo, are forecasted to remain largely dry, with rainfall amounts of less than 10mm expected throughout the week.
A few isolated showers may occur but are not expected to significantly impact water availability in these areas.
Advisory by Kenya Met
Kenya Met has warned that heavy rains in highland areas such as Kericho, Nyandarua, and Murang’a may lead to road disruptions, mudslides, and reduced accessibility to remote areas.
The low rainfall in ASAL counties means water scarcity issues will persist, requiring careful water resource management.
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Farmers in the Central Highlands, Rift Valley, and western Kenya are encouraged to utilize the rains for planting and other agricultural activities.
Kenya Met has stressed the importance of community preparedness, especially in flood-prone regions, and urged local authorities to take precautionary measures.
The department further advised the public to stay updated on daily forecasts as weather conditions can change rapidly.
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