21-30 September, 2025

Rainfall

Recent rainfall anomalies

Wetter Than Normal Conditions (Green and Light Green)

  • Much Wetter than Normal (Dark Green): Concentrated heavily over the northern parts of the region including Sudan, South Sudan, parts of Eritrea, pockets in the northern parts of Ethiopia, Djibouti and northern Somalia.
  • Wetter than Normal (Light Green): Forms a wide band surrounding the darkest green area, covering most of countries highlighted above.

Near Normal Conditions (Light Blue)

  • Near Normal: Predominantly observed in large parts of Uganda, South Sudan, Ethiopia, Somalia, Eritrea, and Sudan.

Drier Than Normal Conditions (Yellow and Orange)

  • Drier than Normal (Yellow) and Much Drier than Normal (Orange): These conditions dominate the eastern and southern parts of the region.
    • Significant drier areas cover most of southeastern Ethiopia, Somalia, Kenya, Tanzania.
    • The orange ('Much drier than normal') is evident in isolated patches across most of the countries highlighted.

No Rain (White)

  • No Rain: Indicated in the very northern and eastern dry areas, particularly along the coast of Eritrea, Sudan, parts Somalia, and much of Kenya and Tanzania.
Recent rainfall totals

High Rainfall Accumulation (Dark Green to Light Green)

  • Highest Rainfall (201–300 mm and 101–200 mm): These values are extremely high for a 10-day period. The dark green (201–300 mm) was observed in isolated pockets within the central region of Ethiopia.
  • Significant Rainfall (51–100 mm and 26–50 mm): These categories cover vast areas, forming a wide, central-to-western band across the region, including:
    • A few pockets in Eritrea, Djibouti and Somalia
    • Most of southern Sudan and South Sudan.
    • Large sections of Ethiopia (especially the western highlands).
    • Western Kenya, Uganda, Rwanda, Burundi and a few pockets in Tanzania.

Moderate to Low Rainfall (Yellow and Orange)

  • Low Rainfall (11–25 mm and 6–10 mm): These values typically ring the high-rainfall areas and transition into the driest zones. They are concentrated over:
    • All countries in the GHA region.

Very Low or No Rain (Light Grey and White)

  • Very Low Rainfall (1–5 mm): Forms a major transitional zone across northern Sudan, parts of Eritrea, Ethiopia, much of Somalia, central Kenya, and most parts of Tanzania.
  • Negligible/No Rain (<1 mm or No Data): These dry conditions dominate the Sudan, parts of Eritrea, eastern half of Somalia, and several parts of Kenya and Tanzania.

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Showing 172 results
Recent rainfall anomalies
Recent rainfall anomalies
  • Much wetter than usual conditions observed in isolated parts of highland of central and northern Ethiopia, north-eastern Burundi and Rwanda, and western and south-eastern Tanzania.
  • Usual rainfall conditions observed over southern Uganda, south-western and north-western …
11 - 20 April 2021 Read More
Recent rainfall anomalies
Recent rainfall anomalies
  • Much wetter than usual conditions observed in isolated parts of northern Tanzania, western and north-eastern Uganda, highland parts of western Kenya, and costal parts of southern Somalia.
  • Wetter than usual conditions observed in sporadic parts …
1 - 10 April 2021 Read More
Recent rainfall anomalies
Recent rainfall anomalies
  • Much wetter than usual conditions observed in eastern parts of South Sudan, isolated areas in southern and northern parts of Tanzania.
  • Wetter than usual conditions observed in most parts of western parts of South Sudan, …
21 - 31 March 2021 Read More
Recent rainfall anomalies
Recent rainfall anomalies
  • Much wetter than usual conditions observed over western and southern parts of Ethiopia, eastern parts of South Sudan, north-eastern Kenya, and south-western Somalia.
  • Usual rainfall conditions observed in northern Burundi, most parts of Rwanda, south-western …
11 - 20 March 2021 Read More
Recent rainfall anomalies
Recent rainfall anomalies
  • Much wetter than usual conditions observed over south-western and the highland of central Ethiopia; northern, central and southern parts of Kenya; southern and western Uganda, southern Burundi, and most parts of Tanzania.
  • Wetter than usual …
21 - 28 February 2021 Read More
Recent rainfall anomalies
Recent rainfall anomalies
  • Much wetter than usual conditions observed over south-western and southern Uganda, and south-western Kenya.
  • Wetter than usual conditions observed in western Tanzania, parts of central Kenya, and Uganda.
  • Usual rainfall conditions observed in most parts …
11 - 20 February 2021 Read More
Recent rainfall anomalies
Recent rainfall anomalies
  • Much wetter than usual conditions observed over central, north-western, and eastern parts of Tanzania.
  • Wetter than usual conditions observed in central and northern Tanzania, central Kenya, most parts of south-western Burundi, and southern and eastern …
1 - 10 February 2021 Read More
Recent rainfall anomalies
Recent rainfall anomalies

  • Much wetter than usual conditions observed over southeast Tanzania and south-central Uganda.
  • Wetter than usual conditions observed in southwestern Tanzania, over much of Lake Victoria peripheral, and in central Uganda.
  • Usual rainfall conditions observed in …
11 - 20 January 2021 Read More
Recent rainfall anomalies
Recent rainfall anomalies
  • Much wetter than usual conditions observed over southern and south-eastern Kenya, isolated areas in south-western and north-eastern Uganda, and central, eastern and north-eastern Tanzania.
  • Wetter than usual conditions observed in most parts of southern and …
11 - 20 January 2021 Read More
Recent rainfall anomalies
Recent rainfall anomalies
  • Much wetter than usual conditions observed over south-east Tanzania and south-central Uganda.
  • Wetter than usual conditions observed in south-western Tanzania, over much of Lake Victoria peripheral, and in central Uganda.
  • Usual rainfall conditions observed in …
11 - 20 January 2021 Read More
Recent rainfall anomalies
Recent rainfall anomalies
  • Much wetter than usual conditions observed over eastern and north-eastern Kenya, and isolated areas in southern Tanzania.
  • Wetter than usual conditions observed in most parts of southern and central Tanzania.
  • Usual rainfall conditions observed in …
21 - 31 December 2020 Read More
Recent rainfall anomalies
Recent rainfall anomalies
  • Much wetter than usual conditions observed Tata Taveta and Kwale counties in Kenya, north-eastern Burundi, extreme north-western Tanzania, and isolated area in central equatoria state in South Sudan.
  • Wetter than usual conditions observed in most …
1 - 10 December 2020 Read More
Recent rainfall anomalies
Recent rainfall anomalies
  • Much wetter than usual conditions observed over coastal parts of northern Somalia and Eritrea, south-western Ethiopia, south-eastern parts of South Sudan, western Kenya, south-eastern Uganda, and isolated areas in central Tanzania.
  • Wetter than usual conditions …
21 - 30 November 2020 Read More
Recent rainfall anomalies
Recent rainfall anomalies

  • Much wetter than usual conditions observed over central and western Tanzania, highland of Lake Victoria region of Kenya.
  • Wetter than usual conditions observed in isolated areas in Rwanda and central Burundi, north-western Tanzania and central …
11 - 20 November 2020 Read More
Recent rainfall anomalies
Recent rainfall anomalies
  • Much wetter than usual conditions observed over Red Sea coastal parts of Sudan and northern Eritrea, south-eastern South Sudan, northern parts of Turkana region and coastal parts of Kenya, coastal parts of Tanzania, southern and …
1 - 10 November 2020 Read More