25 July - 01 August 2023

Rainfall

Temperature

Rainfall forecast (anomalies)

Rainfall anomalies

  • Wetter than usual conditions expected over western and northern parts of Ethiopia, western Eritrea, much of South Sudan, eastern and southern parts of Sudan, northern Uganda, and western Kenya.
  • Drier than usual conditions expected over western to central Sudan, north-western South Sudan, isolated areas in western and central Ethiopia, and the northern shores of Lake Victoria.
Temperature forecast (Anomalies)

Temperature anomalies

  • Warmer than usual temperatures predicted over most parts of the Greater Horn of Africa (GHA).
  • Cooler than usual temperatures expected in isolated areas in northern Somalia, central Ethiopia, eastern South Sudan and central Kenya.
Heavy rainfall

Exceptional rainfall

  • Extremely heavy rainfall expected in isolated areas of Afar region of Ethiopia, and isolated areas in southern and eastern Sudan
  • Heavy to very heavy rainfall (top 10%-5%) expected in much of central to northern Ethiopia, western Eritrea, much of southern Sudan, and much of South Sudan except for western and southeastern parts.
Temperature forecast

Mean temperatures

  • Hot temperatures (above 32 ℃) expected over central to northern Sudan, Afar region in Ethiopia, Djibouti, coastal regions of Eritrea, and north-western coastal parts of Somalia.
  • Moderate to high temperatures (20-32℃) expected over South Sudan, central to southern Sudan, eastern and northern Kenya, north-western and eastern Tanzania, Somalia, south-eastern Ethiopia, and much of Uganda.
  • Mild temperature conditions (less than 20℃) expected over central Ethiopia, isolated areas in southern Uganda, Rwanda, Burundi, parts of southern, western, central to northern Tanzania, and central to south western Kenya.
Rainfall forecast

Total rainfall

  • Heavy rainfall (greater than 200mm) expected over isolated parts in central and north-western Ethiopia, northern and central South Sudan, and south-western Sudan.
  • Moderate rainfall (50-200mm) expected over southern and eastern Sudan, much of South Sudan, western Eritrea, northern to central Ethiopia, northern Uganda, and isolated areas in western Kenya.
  • Light rainfall (less than 50 mm) expected over central and western Sudan, south-eastern South Sudan, parts of central to eastern Ethiopia, parts of coastal Eritrea, northern and southern Somalia, Djibouti, eastern and southern Tanzania, coastal and western Kenya, and central to south-western Uganda.
  • Dry conditions expected over northern Sudan, central Somalia, much of Kenya, Burundi, Rwanda, and most parts of Tanzania.