11-20 September, 2025

Rainfall

Standardized Precipitation Index

Moderately Wet to severely Wet Conditions

A large area stretching across the northern and central parts of the region was characterized by moderately to severely wet conditions. These areas include western Sudan, western Eritrea, much of Ethiopia, Djibouti and northern Somalia, western South Sudan, northeastern parts of Kenya and northeastern parts of Tanzania.

Moderately Dry to Severely Dry Conditions

Countries with pronounced rainfall deficit included a few pockets of northern Sudan, western South Sudan, southeastern Ethiopia, central Somalia, coastal parts of Kenya and a few pockets in Tanzania.

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, Eritrea, Ethiopia, Djibouti and northern Somalia as well as a few pockets in Uganda.
  • 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 found in the equatorial band of the region, including large parts of Uganda, Ethiopia, western Kenya, central and southern South Sudan, and in Sudan.

Drier Than Normal Conditions (Yellow and Orange)

  • Drier than Normal (Yellow) and Much Drier than Normal (Orange): These conditions dominate the eastern and the Horn of Africa.
    • 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, eastern 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) is focused 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:
    • Most of southern Sudan and South Sudan.
    • Large sections of Ethiopia (especially the western highlands).
    • Western Kenya and Uganda.

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 central Kenya, southern Somalia, Sudan, Ethiopia, and 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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Recent rainfall totals
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) is focused in isolated pockets within …
11 - 20 September 2025 Read More
Recent rainfall totals
Recent rainfall totals

Moderate to high rainfall exceeding 100mm occurred in northwestern parts of Ethiopia.

Moderate rainfall of between 26-100mm occurred in southern parts of Sudan, in southwestern Eritrea, in much of South Sudan, western and central Ethiopia, …

1 - 10 September 2025 Read More
Recent rainfall totals
Recent rainfall totals

Moderate to high rainfall exceeding 100mm occurred in northern, western, and central parts of Ethiopia.

Moderate rainfall of between 26-100mm occurred in southern parts of Sudan, in southwestern Eritrea, in much of South Sudan, in …

1 - 10 August 2025 Read More
Recent rainfall totals
Recent rainfall totals

Moderate to high rainfall exceeding 100mm occurred in isolated part of western Ethiopia.

Moderate rainfall of between 26-100mm occurred in western, southern and eastern Sudan, western and central Eritrea, in several parts of South Sudan, …

21 - 31 July 2025 Read More
Recent rainfall totals
Recent rainfall totals

Moderate rainfall of between 26-100mm occurred in several parts of South Sudan, Uganda, in parts of western Ethiopia, in south-central parts of Sudan, in parts of western Kenya and northern coast of Kenya.

Light rainfall …

21 - 30 June 2025 Read More
Recent rainfall totals
Recent rainfall totals

Moderate to high rainfall exceeding 100mm occurred in isolated part of western Ethiopia.

Moderate rainfall of between 26-100mm occurred in western and northwestern parts of South Sudan, in parts of southwestern and southeastern Sudan, in …

11 - 20 June 2025 Read More
Recent rainfall totals
Recent rainfall totals

Moderate rainfall of between 26-50mm and exceeding 50mm was recorded in western to southwestern parts of South Sudan, western Ethiopia, parts of western and coastal Kenya, and northern, central to western Uganda.

Light rainfall of …

1 - 10 June 2025 Read More
Recent rainfall totals
Recent rainfall totals

Moderate to high rainfall of between 26-200mm was recorded in some parts of western Ethiopia, in parts of western and eastern South Sudan, in northern, central, western and southeastern Uganda, and in parts of western …

21 - 31 May 2025 Read More
Recent rainfall totals
Recent rainfall totals

Moderate to high rainfall of between 26-200mm was recorded in many parts of South Sudan, in western Ethiopia, in in northern, central and eastern Uganda, in western, central and coastal Kenya, in western and central …

11 - 20 May 2025 Read More
Recent rainfall totals
Recent rainfall totals

Moderate to high rainfall of between 25-200mm was recorded in southern and eastern Ethiopia, in northwestern, central and southern Somlai, in western eastern and southern parts of South Sudan, in several parts of Uganda, Rwanda …

1 - 10 May 2025 Read More
Recent rainfall totals
Recent rainfall totals

Moderate to high rainfall of between 25-200mm was recorded in southwestern Ethiopia, in southeastern Somalia, in southern Uganda, in western, central eastern southern and coastal Kenya, in much of Kenya and Burundi, and in northern …

21 - 30 April 2025 Read More
Recent rainfall totals
Recent rainfall totals

Rainfall exceeding 200mm was recorded in isolated part of southern Tanzania.

High rainfall of between 50-200mm was recorded in southern Ethiopia, in southeastern South Sudan, in northern Uganda, in southern Somalia, in much of north, …

11 - 20 April 2025 Read More
Recent rainfall totals
Recent rainfall totals

High rainfall of between 100-200mm was recorded in some places in central Kenya and in coastal and southern part of Tanzania.

Moderate to high rainfall of between 26-100 mm was observed southwestern, central to eastern …

1 - 10 April 2025 Read More
Recent rainfall totals
Recent rainfall totals

High rainfall of between 50-200mm was recorded in southwestern Ethiopia, in southern Uganda, in western, central and eastern parts of Kenya, in southern Burundi, and in several parts of northwestern, western and southern Tanzania.

Moderate …

21 - 31 March 2025 Read More
Recent rainfall totals
Recent rainfall totals

High rainfall of between 50-300mm was recorded in southwestern Ethiopia, in eastern and southeastern Uganda, in western, central and southwestern Kenya, and in much of Burundi and Tanzania.

Moderate rainfall of between 26-50 mm was …

11 - 20 March 2025 Read More