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
Temperature forecast
Temperature forecast
  • Warmer than usual conditions expected over most parts of the country.
  • Normal conditions expected over south-eastern parts of the country.
JAS - 2025 Read More
Rainfall forecast (Total mm)
Rainfall forecast (Total mm)
  • Wetter than usual conditions expected over the northern parts of the country.
JAS - 2025 Read More
Rainfall forecast
Rainfall forecast
  • Wetter than usual conditions expected over most parts of the northern sector of the region, western Kenya, and much of Uganda. 
  • Drier than usual conditions expected over isolated areas in South Sudan, Ethiopia, and Somalia. 
JAS - 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.
JAS - 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 parts of Warrap and eastern regions of Western Bahr el Ghazal states.
JAS - 2025 Read More
Rainfall forecast
Rainfall forecast
  • Wetter than usual conditions expected over Uganda, western Kenya, and most parts of the northern sector. 
  • Drier than usual conditions expected over isolated areas in northern Somalia. 
JAS - 2024 Read More
Temperature forecast
Temperature forecast
  • Warmer than usual conditions expected over the whole country.
JAS - 2024 Read More
Rainfall forecast
Rainfall forecast
  • Wetter than usual conditions expected over the whole country with pockets of drier than usual conditions over the northern areas.
JAS - 2024 Read More
Rainfall forecast
Rainfall forecast
  • Wetter than usual conditions expected over the northern parts of the country.
  • Drier than usual conditions expected over areas in central-northern regions of the country.
JAS - 2024 Read More
Temperature forecast
Temperature forecast
  • Warmer than usual conditions expected over the whole country.
JAS - 2024 Read More
Temperature forecast
Temperature forecast
  • Warmer than usual temperatures indicated over most parts of the region. 
  • Average temperatures likely to be recorded over part of eastern Sudan, Djibouti, and around Mt. Elgon areas of Kenya-Uganda.
JAS - 2024 Read More
Temperature forecast
Temperature forecast
  • Warmer than normal conditions expected over the whole country.
JAS - 2023 Read More
Temperature forecast
Temperature forecast
  • Warmer than usual conditions expected over the whole country.
JAS - 2023 Read More
Temperature forecast
Temperature forecast
  • Warmer than usual temperatures indicated over the whole region.
  • Highest probabilities are indicated over northern Sudan, parts of Ethiopia, Somalia, Kenya, and Tanzania.
JAS - 2023 Read More
Rainfall forecast
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 usual conditions expected over most parts of Sudan, South Sudan, …
JAS - 2023 Read More