SEASONAL WEATHER FORECAST FOR JUNE, JULY, AUGUST(JJA) 2025.
The Outlook for June-July-August 2025 Rainfall Season
The outlook for the June-July-August (JJA) 2025 rainfall season indicates a likelihood of near to above average
rainfall in the Highlands west of the Rift Valley, the Lake Victoria Basin region, the Rift Valley, parts
of the Highlands east of the Rift Valley, and the northwestern region. The coastal strip is expected to receive near-average rainfall, with a tendency toward below-average amounts, while the rest of the country will
generally remain dry.
In the Central Highlands and Nairobi areas, as well as parts of the Southeastern lowlands and isolated
highland areas of Marsabit County, cool and cloudy conditions with occasional light to moderate rainfall are
anticipated. Overall, temperatures across most parts of the country are expected to be warmer than average
for the season. However, a few areas—including Turkana, West Pokot, and parts of Samburu, Marsabit,
Elgeyo Marakwet, Laikipia, and Baringo counties—are expected to experience cooler than average
temperatures.
Rainfall Review during the March-April-May 2025 Season
The March-April-May (MAM) 2025 "Long Rains" season in Kenya began earlier than expected in several
regions, with onset occurring in mid-March across most parts of the country, though Mandera experienced
a delayed onset in April. Near to above-average rainfall was recorded in most areas, with the highest totals in
the western highlands and central regions. However, Nyeri recorded below-average rainfall, and prolonged
dry conditions were observed in the Coastal region and Mandera. Rainfall distribution was generally good,
though the season was marked with severe storms across several parts of the country, particularly in March,
April, and early May. The northern and eastern arid and semi-arid lands recorded significantly lower rainfall
totals, with Lodwar and Mandera having the lowest. Compared to long-term averages, 15 stations recorded
above-normal rainfall, 17 were near-normal, and only one was below-normal. Temperatures were generally
warmer than average across most of the country, except in Kisumu and Lodwar, where mean temperatures
were cooler than normal. By the end of May, rainfall had ceased in the northeast and southeast, while central,
western, and coastal regions are expected to continue receiving rainfall into the June–August season.