The Kenya Meteorological Department has issued a 24-hour forecast predicting rainfall in 31 counties, valid from 9pm on Sunday, September 13, to 9pm on Monday, September 14.
The forecast was released in two sections, covering coastal and northern counties as well as Rift Valley and Western Kenya counties.Heavy rains pound Nairobi and its environs
Kenya Met said showers were expected in parts of Kericho, Kakamega, Vihiga, Nandi, Kisumu, Baringo, West Pokot, Bomet, Homa Bay and several other counties.
Mandera recorded the highest maximum temperature among the 12 coastal and northern counties at 37°C.
Meru was the coolest in that group, with a maximum of 24°C and a minimum of 15°C.
Other counties in the section, including Mombasa, Kwale, Kilifi, Tana River, Lamu, Taita Taveta, Garissa, Wajir, Marsabit and Isiolo, fell within that temperature range.
Conditions across the coastal and northern counties were expected to remain partly cloudy through Sunday night, with sunny intervals forecast for Monday afternoon.
In the Rift Valley and Western Kenya section, Kakamega recorded the highest maximum temperature at 28°C, while Kericho had the lowest at 21°C.
Overnight lows dropped to 11°C in Laikipia, Kericho and Bomet, with Kakamega recording the warmest minimum at 16°C.
Unlike the coastal and northern regions, the Rift Valley and Western counties were forecast to experience a more active weather pattern, with light showers and thunderstorms expected on Sunday night.
Monday mornings were expected to bring sunny intervals in some areas, though cloud cover was forecast to persist elsewhere, with afternoons turning unsettled due to light to moderate showers and thunderstorms.
Residents in low-lying and flood-prone areas were urged to take precaution against the afternoon storm risk.
The Kenya Meteorological Services Authority has flagged urban, river and flash flooding as key risks, with the World Meteorological Organisation placing the probability of El Niño persisting through February 2027 at nearly 100 percent.
A preliminary government assessment estimates about 1.5 million people across all 47 counties could be affected.