Our seasonal forecasts

Our seasonal forecasts help Eastern Africa prepare for the season and mitigate the effects of climate extremes.

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June - August 2025

Rainfall

Temperature

Temperature forecast
  • Warmer than average conditions are expected over northern an southern Sudan, South Sudan, much of Ethiopia, Somalia, Kenya, Uganda, Rwanda, Burundi and Tanzania. 
  • Near Normal temperatures expected central Sudan, north-western Ethiopia, and parts of south-western South Sudan. 
  • Cooler than normal temperatures likely to be recorded over isolated areas in northern Somalia, northern Ethiopia, parts of southern Djibouti, a few regions in western and eastern Sudan and cross border areas of Kenya-Uganda-South Sudan-Ethiopia. 
Rainfall forecast
  • Wetter than usual conditions expected over most parts of the northern sector of the region. 
  • Drier than usual conditions expected over few places in southern Sudan, north-western South Sudan, and isolated areas in southern coastal Somalia and Kenya. 

Seasonal forecasts

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Rainfall forecast (Total mm)
Rainfall forecast (Total mm)
  • Usual conditions expected all over the country.
OND - 2021 Read More
Temperature forecast
Temperature forecast
  • Warmer than usual conditions likely to be recorded all over the country, with a small area over the south-east likely to record usual temperatures.
OND - 2021 Read More
Anomaly Wet spell
Anomaly Wet spell
  • Fewer than usual wet spells over the western borders of the region.
  • Higher than usual wet spells over the central areas of the region.
OND - 2021 Read More
Onset anomalies
Onset anomalies
  • Generally delayed onset over the eastern part of the region.
OND - 2021 Read More
Probability of 300 mm
Probability of 300 mm
  • Higher chances of rainfall exceeding 300 mm during October to December (OND) over western areas of the region.
OND - 2021 Read More
Onset anomalies
Onset anomalies

Rains are expected to start late (compared to the 1981-2010 average onset) over Tanzania, Burundi, eastern Kenya, southern and central Somalia, and south-eastern Ethiopia. On the other hand, rains are expected to start earlier than …

OND - 2020 Read More
Temperature forecast
Temperature forecast
  • Warmer than usual conditions likely to be recorded all over the country.
OND - 2020 Read More
Temperature forecast
Temperature forecast
  • Warmer than usual temperature conditions likely to be recorded all over the country.
OND - 2020 Read More