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 - September

Rainfall

Temperature

Length of dry spells
  • Longest dry-spell lengths after onset expected over western Kenya, eastern Uganda, southern Ethiopia, northern Sudan.
  • Much of the region is likely to experience first dry-spell length ranging from 4 to 8 days
Length of wet spells
  • Longer wet-spell lengths after seasonal onset are expected over parts of northwestern Ethiopia, while shorter wet-spell lengths are anticipated over northeastern Ethiopia and Sudan
Onset dates
  • The onset of rainfall shows a progression from south to north following the movement of the ITCZ.
Probability Onset
  • Enhanced probabilities of a late onset are indicated across much of the region. However, parts of southwestern, north-central Ethiopia, and parts of Sudan show likelihood of an early to near-normal onset
Temperature forecast
  • Significantly higher likelihood for above-normal temperatures are indicated across the vast majority of the Greater Horn of Africa region.
  • The highest probabilities of above-normal temperatures are concentrated over northern Sudan, most parts of South Sudan and Ethiopia
Rainfall forecast
  • Wettern than normal conditions indicated over parts of coastal Somalia and Kenya, northern Sudan, southern Ethiopia, and northern Somalia while near-normal conditions are expected over most of central Sudan.
  • Enhanced likelihood Below-normal rainfall across much of the northern GHA, including South Sudan, Ethiopia, parts of Sudan, Eritrea, Djibouti, Uganda, and western Kenya.

Seasonal forecasts

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Showing 455 results
Rainfall forecast
Rainfall forecast
  • Drier than usual conditions expected over most parts of the country.
SON - 2025 Read More
Temperature forecast
Temperature forecast
  • Normal to cooler than normal conditions expected over Sudan, western Eritrea, northern Ethiopia, parts of northern Somalia, central to western Kenya, north-eastern Uganda, south-eastern South Sudan and part of southern Tanzania.
  • Warmer than usual conditions …
SON - 2025 Read More
Rainfall forecast
Rainfall forecast
  • Drier than usual conditions expected over north-western parts of the country.
  • Wetter than usual conditions expected over the rest of the country.
SON - 2025 Read More
Temperature forecast
Temperature forecast
  • Warmer than usual conditions expected over most parts of the country.
  • Normal temperatures likely to be recorded over south-eastern parts of the country.
SON - 2025 Read More
Rainfall forecast
Rainfall forecast
  • Drier than usual conditions expected over eastern Kenya, Somalia, Djibouti, northern-coastal and part of north-western Tanzania, south-eastern Ethiopia, and north-western South Sudan.
  • Wetter than usual conditions expected over western Kenya, part of north-western Tanzania, Rwanda, …
SON - 2025 Read More
Temperature forecast
Temperature forecast
  • Normal to cooler than normal conditions expected over some places in the northern regions of the country.
  • Warmer than usual conditions expected over the rest of the country.
SON - 2025 Read More
Rainfall forecast (Total mm)
Rainfall forecast (Total mm)
  • Wetter than usual conditions expected over most parts of the country.
  • Drier than usual conditions are expected over north-western part of the country.
DJF - 2025 Read More
Rainfall forecast
Rainfall forecast
  • Wetter than usual conditions expected over most parts of the northern sector of the region, western Kenya, Uganda and Rwanda. 
  • Drier than usual conditions expected over part of north-western South Sudan, south-eastern Ethiopia, central to …
DJF - 2025 Read More
Temperature forecast
Temperature forecast
  • Warmer than average conditions are expected over northern and southern Sudan, eastern and western South Sudan, central to southern Ethiopia, Somalia, southern and north-eastern Kenya, Uganda, Rwanda, Burundi and Tanzania. 
  • Normal to cooler than normal …
DJF - 2025 Read More
Temperature forecast
Temperature forecast
  • Warmer than usual conditions are expected over most parts of the country except over north-western parts where cooler than normal conditions are expected.
DJF - 2025 Read More
Temperature forecast
Temperature forecast
  • Warmer than usual conditions expected over most parts of the country.
  • Normal conditions are expected over parts of the central, north-eastern and south-eastern parts of the country.
DJF - 2025 Read More
Rainfall forecast (Total mm)
Rainfall forecast (Total mm)
  • Wetter than usual conditions expected over the northern parts of the country.
  • Drier than usual conditions expected over part of northern and central to southern areas of the country
DJF - 2025 Read More
Rainfall forecast
Rainfall forecast
  • Drier than usual conditions expected over most parts of Kenya, southern Uganda, Rwanda, and north-western Tanzania. 
  • Normal to wetter than usual conditions expected over north-western Kenya and most parts of Tanzania. 
SON - (2024 - 2025) Read More
Temperature forecast
Temperature forecast
  • Warmer than usual conditions expected over the whole country.
SON - (2024 - 2025) Read More
Temperature forecast
Temperature forecast
  • Warmer than usual conditions expected over most parts of the country.
  • Normal conditions expected over north-western parts of the country.
SON - (2024 - 2025) Read More