The Kenya Meteorological Department has issued a weekly weather forecast for Nairobi County listing estates expected to experience heavy rainfall. In an advisory, Kenya Met issued a weekly weather forecast for Nairobi County covering the period from 28th April to 4th May 2026.
This follows heavy rainfall across the Nairobi Metropolitan area on April 27, with heavier showers reported in areas like Nairobi West.
According to Kenya Met, the county is likely to experience moderate to heavy rainfall during the first half of the week.
Additionally, the weatherman said daytime temperatures are expected to range between 21°C and 25°C, while nighttime temperatures will likely fall between 14°C and 17°C, indicating generally cool conditions across the week.
“The County is likely to experience moderate to heavy rainfall during the first half of the week. o Day-time highs are expected to be between 21°C and 25°C while night-time lows are likely to range from 14°C to 17°C,” the statement read.
The advisory warns that flooding may occur in flood-prone and low-lying areas due to the expected rainfall intensity. Residents have been urged to remain vigilant and take necessary precautions.
“Flooding may occur in flood-prone areas; residents are advised to remain vigilant and stay alert,” Kenya Met stated.
Nairobi Estates Expected to Experience Heavy Rainfall This Week
According to the Kenya Meteorological Department, the central and south-western parts of Nairobi are expected to record the highest rainfall totals during the forecast period.
The agency notes that areas including Westlands, Upper Hill, Kibra, Dagoretti, Lang’ata, and Karen are projected to receive between 60 and 80 millimeters of rainfall.
Kenya Met further indicates that localized zones within these areas may receive 80 to 100 millimeters over the period.
The rainfall pattern is described as persistent and relatively heavy, suggesting prolonged wet conditions across the affected estates.
The department warns that such rainfall levels may increase the risk of localized flooding, particularly in low-lying and poorly drained areas.
Also Read: Kenya Met Issues Advisory as Nairobi Experiences Unexpected Afternoon Rainfall
In the northern and northeastern parts of the county, including Kasarani, Roysambu, Zimmerman, Githurai, Kahawa West, and parts of Ruaraka, rainfall is expected to be moderate, with amounts mostly between 40 and 60 millimeters.
Some isolated areas in the north show slightly higher totals, but overall, the rainfall here is lighter than in the southwest.
Meanwhile, the eastern parts of Nairobi, including Ruai, Mihango, Njiru, and sections of Embakasi, are forecast to receive the lowest rainfall amounts, with totals mainly below 40 millimeters over the period.
Kenya Met Issues Flood Watch for Tana Basin
The Kenya Meteorological Department, in a separate statement on April 28, issued a flood watch for the Tana Basin, warning of expected moderate to heavy rainfall over the next seven days.
Also Read: Ministry Lists 37 Nairobi Areas at Risk of Flooding Amid Heavy Rains
The agency notes that streamflow forecasts indicate rising water levels at key monitoring stations across the region.
At Garissa, water levels are expected to average about 6.4 meters during the forecast period.
In Saka, Hola, and Garsen, water levels are projected to rise to approximately 4.8 meters, 5.1 meters, and 4.2 meters, respectively.
Despite the projected levels, Kenya Met indicates that the situation presents a high risk of flooding across the basin during the forecast period.
Authorities have cautioned residents in the affected areas to remain alert due to the elevated flood risk associated with the anticipated rainfall.
