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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Showing 489 results
Recent rainfall anomalies
Recent rainfall anomalies
  • Much Wetter than normal conditions observed over south-western South Sudan, and isolated parts of Ethiopia.
  • Wetter than normal conditions observed over isolated parts of Tanzania.
  • Normal rainfall conditions observed in most of Rwanda, northern Burundi, …
1 - 10 March 2022 Read More
Recent rainfall totals
Recent rainfall totals
  • Heavy rainfall (between 101 - 200 mm) observed in southern Tanzania.
  • Heavy to moderate rainfall (between 51 - 100 mm) observed in western Burundi, and south-western and southern Tanzania.
  • Light rainfall between (26 - 50 …
1 - 10 March 2022 Read More
Recent rainfall totals
Recent rainfall totals
  • Heavy to moderate rainfall (between 50 - 100 mm) observed in western parts of Kenya, eastern Burundi, and in central, south-western, and southern Tanzania.
  • Light rainfall between (25 - 50 mm) observed in south-western Ethiopia, …
21 - 28 February 2022 Read More
Recent rainfall anomalies
Recent rainfall anomalies
  • Wetter than normal conditions observed over most of Tanzania, central and eastern Rwanda, eastern Burundi, most of southern Kenya, south-eastern Uganda, and south-western Ethiopia.
  • Normal rainfall conditions observed in most of western Uganda, western Burundi, …
21 - 28 February 2022 Read More
Standardized Precipitation Index
Standardized Precipitation Index
  • Moderately to severely wetter than normal conditions observed in most of Tanzania, eastern Rwanda, north-eastern Burundi, central and south-eastern Uganda, western and southern Kenya, and in south-western Ethiopia.
  • Normal rainfall conditions observed in several parts …
21 - 28 February 2022 Read More
Standardized Precipitation Index
Standardized Precipitation Index
  • Moderate to severely wetter than normal conditions were not observed in Rwanda, central and southern parts of Uganda, western Kenya, northern Burundi; and north-west, north, central and southern parts of Tanzania.
  • Normal rainfall conditions were …
11 - 20 February 2022 Read More
Recent rainfall totals
Recent rainfall totals
  • Heavy to very heavy rainfall between 100 - 300mm was observed in the southern parts of Tanzania.
  • Heavy to moderate rainfall between 50 - 100 mm was observed in north-western Rwanda, south-western parts of Kenya; …
11 - 20 February 2022 Read More
Recent rainfall anomalies
Recent rainfall anomalies
  • Wetter than normal to much wetter than normal conditions were observed in central and southern Uganda, western Kenya, much of Rwanda, northern and central Burundi; and in much of north, central, eastern and southern Tanzania. …
11 - 20 February 2022 Read More
Standardized Precipitation Index
Standardized Precipitation Index
  • Moderate to severely wetter than usual conditions were observed in south-west Uganda, northern Burundi, south-western Kenya, and northern, eastern, and southern Tanzania.
  • Usual rainfall conditions were observed in Sudan, Djibouti, Eritrea, South Sudan, Somalia, northern …
1 - 10 February 2022 Read More
Recent rainfall totals
Recent rainfall totals
  • Moderate to heavy rainfall (between 200 - 300 mm) was not recorded in the region.
  • Moderate rainfall (between 100 - 200 mm) was recorded in southern parts of Tanzania.
  • Light rainfall (between 10 - 100 …
1 - 10 February 2022 Read More
Recent rainfall anomalies
Recent rainfall anomalies
  • Wetter to much wetter than usual conditions were observed in south-western Uganda, northern Rwanda, parts of western Kenya, and northern, eastern, and southern Tanzania.
  • Usual rainfall conditions were observed over most of Sudan, Somalia, South …
1 - 10 February 2022 Read More
Recent rainfall totals
Recent rainfall totals
  • Moderate to heavy rainfall (between 50 - 200 mm) recorded in southern Rwanda, most of Burundi, and Tanzania.
  • Moderate rainfall (between 25 - 50 mm) recorded in northern Rwanda, south-western Kenya, north-western Tanzania, and isolated …
21 - 31 January 2022 Read More
Recent rainfall anomalies
Recent rainfall anomalies

Much wetter than usual conditions observed in most parts of Rwanda, and north-western, central and eastern Tanzania.

Wetter than usual conditions observed in most of Burundi, coastal parts of Kenya, and north-western parts of Tanzania. …

21 - 31 January 2022 Read More
Standardized Precipitation Index
Standardized Precipitation Index
  • Moderately to severely wetter than usual conditions observed in several parts of Tanzania, Rwanda, north-western Burundi, and central and western Uganda.
  • Usual rainfall conditions observed over most parts of Sudan, South Sudan, Eritrea, Djibouti, Ethiopia, …
11 - 20 January 2022 Read More