Government Spokesperson Isaac Mwaura has warned of possible flooding in several parts of the country following a heavy rainfall advisory issued by the Kenya Meteorological Department.

Highlighting the alert on December 27, 2025, Mwaura said heavy rainfall exceeding 20 mm in 24 hours is expected over parts of the South-Eastern lowlands, urging residents in low-lying areas to remain prepared as the rains intensify over the coming days.

The advisory comes amid the ongoing short rains season, a period often marked by localised but intense downpours that can trigger flash floods, especially in urban centres and flood-prone areas with poor drainage infrastructure. Authorities have advised heightened vigilance as rainfall patterns are expected to vary across regions.

“Heavy Rains Set to Pound Several Regions as Flood Risk Rises (Dec 27–30) Rainfall Alert: Dec 27, 2025 Heavy rainfall exceeding 20mm in 24hrs is expected over parts of the South-Eastern lowlands today, the 27th of Dec. Residents in low-lying areas should stay sharp and prepared,” Government Spokesperson X post.

Counties on alert

According to an advisory issued on December 26, 2025, by the State Department for Environment and Climate Change, rainfall exceeding 20mm within 24 hours is anticipated over parts of the South-Eastern lowlands on December 27, 2025.

The rainfall is projected to intensify to more than 30mm in 24 hours and spread to parts of the Highlands West and East of the Rift Valley, the Lake Victoria Basin, and southern parts of the Coastal region on December 28 and 29, 2025. The intensity is expected to reduce on December 30, 2025.

The advisory, signed by Kennedy Thiong’o for the Ag. Director of the Kenya Meteorological Department, indicates a severity level ranging from moderate to heavy, with a certainty of moderate probability estimated at between 33 per cent and 66 per cent.

Counties listed as areas of concern include Migori, Homa Bay, Kisii, Narok, Kajiado, Makueni, Machakos, Nairobi, Kericho, Bomet, and the southern parts of Kitui, Taita-Taveta, and Kwale. Residents in these areas have been advised to stay alert to the risk of flooding, particularly in low-lying zones.

“Counties: Migori, Homa Bay, Kisii, Narok, Kajiado, Makueni, Machakos, Nairobi, Kericho, Bomet, and the southern parts of Kitui, Taita-Taveta and Kwale.”

Preparedness and past impact

The warning has been circulated to key stakeholders, including the Presidency, relevant ministries, security agencies, the Kenya Red Cross, and county governments, to facilitate coordinated preparedness and response. Authorities have indicated that updates will be provided promptly should there be changes in the forecast or risk levels.

The advisory comes against the backdrop of previous heavy rainfall events that have had severe consequences across the country. During the 2023–2024 El Niño-enhanced rains, floods affected multiple counties, leading to hundreds of fatalities, displacement of tens of thousands of households, destruction of infrastructure, and widespread loss of livestock and crops.

The Kenya Meteorological Department said it will continue monitoring weather patterns and provide regular updates through its official website, email platforms, and social media channels to keep the public informed as the situation evolves.