Weekly Forecast
At ICPAC we use the Weather Research and Forecasting Model (WRF) to produce our forecasts in a resolution of 10 x 10 Km. Our weekly forecasts are very popular and help stakeholders prepare for extreme weather, and mitigate risks associated with floods, drought or heavy rainfall.
26 May - 02 June 2026
Rainfall
Temperature
Rainfall anomalies
- More than usual rainfall expected over most parts of Ethiopia, northern Somalia, south-western parts of South Sudan, southern Tanzania, central regions of Kenya and Somalia-Kenya coastal border.
- Less than usual rainfall expected over parts of Somalia, southern Sudan, South Sudan and Uganda.
Exceptional rainfall
- Rainfall exceeding the 90th percentile expected over the western parts and north-eastern parts of Ethiopia extending to northern parts of Somalia and some parts of South Sudan.
Floods Update
- Most of the places in western parts and north-eastern parts of Ethiopia, and northern parts of Somalia and some parts of South Sudan are likely to experience flooding incidences in the coming week. During this period, communities in high-risk areas are encouraged to be cautious.
Temperature anomalies
- Warmer than usual temperatures expected over most parts of the GHA.
- Cooler than usual temperatures expected over parts of northern Sudan and other isolated regions across the GHA.
Mean temperatures
- Elevated temperatures exceeding 32°C expected over southern parts of Sudan, Djibouti and north-eastern parts of Ethiopia.
- Moderate to high temperatures (20-32℃) expected over most parts of the GHA.
- Mild temperature conditions (less than 20℃) expected over Rwanda, Burundi, central to western regions of Kenya, Tanzania and most of the highlands across the GHA.
Heat Stress
- Elevated heat stress within the ‘Extreme Caution’ category expected over most parts of South Sudan, Sudan, Eritrea, Djibouti, eastern and northern Kenya, central to southern Somalia and north-eastern regions of Ethiopia.
Total rainfall
- Moderate rainfall (50-200mm) expected over western parts of South Sudan, some parts of northern Uganda, western and eastern parts of Ethiopia, isolated areas in northern and southern Somalia, and southern parts of Tanzania.
- Light rainfall (less than 50 mm) expected over most parts of central to eastern Tanzania, western Kenya, Somalia, southern Ethiopia and some parts of south-eastern Ethiopia.
Weekly Forecasts
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Rainfall forecast (anomalies)
Rainfall anomalies
- Wetter than usual conditions expected over Uganda, northern Kenya, Somalia, central to southern Ethiopia, southern South Sudan, and north-western and southern Tanzania.
- Drier than usual conditions expected over central to northern Tanzania, and …
Heavy rainfall
Exceptional rainfall
- Extremely heavy rainfall expected over cross-border regions of northern Kenya to south-eastern Somalia and south-eastern South Sudan, south-western Ethiopia, and north-western Kenya..
- Heavy to very heavy rainfall expected in most parts of central …
Heat Stress
Heat Stress
- Elevated levels of heat stress expected over parts of central to southern Sudan, South Sudan, central to southern Somalia, eastern Kenya, and most coastal regions.
Floods update
- Extremely heavy rainfall expected over a few places in northern Kenya and central and southern Somalia. Heavy to very heavy rainfall expected in most parts of Rwanda, Burundi, northern Tanzania, Kenya, southern Somalia, southern Ethiopia, …
Temperature forecast (Anomalies)
Temperature anomalies
- Warmer than usual temperatures predicted in most parts of the Greater Horn of Africa (GHA).
- Cooler than usual temperatures forecast over parts of central Sudan, south-eastern South Sudan, northern Kenya, and a few …
Rainfall forecast
- Heavy rainfall (greater than 200mm) over a few regions in south-western Somalia.
- Moderate rainfall (50-200mm) expected in southern and north-western parts of the country.
- Light rainfall (less than 50mm) to dry conditions expected over central …