Our seasonal forecasts
Our seasonal forecasts help Eastern Africa prepare for the season and mitigate the effects of climate extremes.
April - June 2026
Rainfall
Temperature
- Warmer than usual conditions expected over most parts of Sudan, South Sudan, northern and western Ethiopia, Djibouti, Eritrea, southern Somalia, Uganda, northern and eastern Kenya, Rwanda, Burundi and Tanzania.
- Normal to cooler than normal conditions are expected over part of south-eastern Sudan, central to southern South Sudan, most parts of Ethiopia, part of central to eastern Uganda, central to western Kenya, and most parts of Somalia.
- Wetter than normal conditions expected over most parts of the region including Ethiopia, Djibouti, northern Eritrea, Kenya, central to southern Somalia, central to southern South Sudan, Uganda, Rwanda, Burundi, Tanzania.
- Drier than normal conditions expected over northern parts of Somalia, isolated areas in central-eastern and north-eastern Ethiopia, and southern Eritrea.
Seasonal forecasts
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Rainfall forecast
- Wetter than usual conditions expected over northern and southern coastal parts of Somalia, south-eastern Ethiopia, cross-border areas of Ethiopia-Sudan-South Sudan, and coastal Kenya.
- Drier than normal conditions expected over most parts of Sudan, South Sudan, …
Rainfall forecast
- Drier than normal conditions expected over most parts of the country.
- Average conditions expected over central-northern to north-eastern parts of the country.
Temperature forecast
- Warmer than normal conditions expected all over the country.
Probability of 400 mm
- High chances of exceeding 400 mm rainfall over the Lake Victoria Basin and south-western Ethiopia.
- Low chances of exceeding 40 mm rainfall over the rest of the region.
Rainfall forecast
- Drier than usual rainfall is indicated over eastern (Ethiopia, Eritrea, Djibouti, Somalia, eastern Kenya) and western (western South Sudan, Uganda, and Rwanda) parts of the region.
- Wetter than usual rainfall are indicated over cross-border …
Probability of 300 mm
- High chances of exceeding 300 mm rainfallover central to western Kenya, Tanzania, Rwanda, Burundi, Uganda, south western South Sudan, and south-western Ethiopia.
Onset dates
- Onset expected from second week of March over western and south-western Kenya and progress northwards.
Temperature forecast
- Warmer than average temperatures are expected all over the region with highest probabilities indicated over Sudan, Ethiopia, Kenya, and southern areas of Tanzania.
Probability Onset
- Rain excpected to start on time over most parts of the region while a delay is excpected over north-eastern Tanzania, Rwanda, Burundi, and central Somalia.
Rainfall forecast
- Wetter than normal conditions expected over most parts of northern Greater Horn of Africa (GHA).
- Drier than normal conditions expected over coastal Kenya, southern coast of Somalia, and localized areas in south-eastern Ethiopia.
Length of wet spells
- Longest wet spells expected over western to central Ethiopia.
Onset anomalies
- Early onset expected in eastern South Sudan and parts of Ethiopia.
Temperature forecast
- Warmer than normal temperatures expected over eastern parts of the region and northern areas of Sudan.
- Near normal temperatures expected in the western and south-western parts of Tanzania, Burundi, eastern Rwanda, central Ethiopia, and part …
Probability of 300 mm
- Higher chances of rainfall exceeding 300 mm over central to western Ethiopia, South Sudan, Uganda, and southern Sudan.