1-10 October, 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 central Sudan, western Eritrea, south and northwestern Ethiopia, and northern Somalia, western and southeastern South Sudan, western parts of Kenya and northwestern parts of Tanzania.

Moderately Dry to Severely Dry Conditions

Countries with pronounced rainfall deficit included a few pockets in the border region between Ethiopia, Sudan and South Sudan, southeastern Ethiopia, central Somalia, 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, parts of Eritrea, Ethiopia, northern Somalia and the equatorial region including eastern Uganda, central to western Kenya and northwestern Tanzania.
  • 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 equatorial and northern parts of the region including Uganda, South Sudan, Ethiopia, Somalia, Eritrea, Kenya and Sudan.

Drier Than Normal Conditions (Yellow and Orange)

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

No Rain (White)

  • No Rain: Indicated in the very northern and eastern dry areas, particularly in northern parts of Sudan, northern Ethiopia, and northwestern Kenya as well as central and southern 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. Rainfall amounts between 101 and 300 mm was observed in isolated pockets within the central region of Ethiopia and western parts of Kenya.
  • 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 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, northwestern and northeastern Kenya, and most parts of Tanzania.
  • Negligible/No Rain (<1 mm or No Data): These dry conditions dominate northern Sudan, parts of Ethiopia, and several parts of Kenya and Tanzania.

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Standardized Precipitation Index
Standardized Precipitation Index

Moderately wet to severely wet conditions were observed eastern part of Sudan, in western Eritrea, in northwestern and southern parts of South Sudan, in northwestern, western, southern and eastern parts of Ethiopia, in parts of …

11 - 20 October 2023 Read More
Recent rainfall totals
Recent rainfall totals

Moderate to heavy rainfall of between 26 - 100 mm was observed in the northern and western parts of South Sudan, in western and southwestern Ethiopia, in a few areas in central Somalia, and in …

1 - 10 October 2023 Read More
Standardized Precipitation Index
Standardized Precipitation Index

Moderately to extremely dry conditions were observed in southern parts of Sudan, in western Eritrea, in northern, eastern and southern parts of South Sudan, in several parts of Ethiopia, in parts of northern and southern …

1 - 10 October 2023 Read More
Recent rainfall anomalies
Recent rainfall anomalies

Drier than usual conditions were observed in southern parts of Sudan, in several parts of Eritrea and Ethiopia, southern parts of South Sudan, in much of northern and southern parts of Somalia, in parts of …

1 - 10 October 2023 Read More
Recent rainfall totals
Recent rainfall totals

Heavy rainfall exceeding 200 mm was observed in parts of western Ethiopia.

Moderate to heavy rainfall of between 26 - 200 mm was observed in the southern parts of Sudan, in much of South Sudan, …

21 - 30 September 2023 Read More
Recent rainfall anomalies
Recent rainfall anomalies

Wetter than usual conditions were observed in southwestern and southeastern Sudan, in southwestern Eritrea, in parts of Djibouti, in northeastern, central and southwestern parts of Ethiopia, in northern Somalia, in parts of southeastern South Sudan, …

21 - 30 September 2023 Read More
Standardized Precipitation Index
Standardized Precipitation Index

Moderately to severely wet conditions were observed in parts of western and southeastern Sudan, in parts of southwestern Eritrea, in much of Djibouti, in several parts of southwestern, central and northeastern Ethiopia, in northern parts …

21 - 30 September 2023 Read More
Standardized Precipitation Index
Standardized Precipitation Index

Moderately to severely wet conditions were observed in a several parts of South Sudan, in western parts of Sudan, in a few areas in western Ethiopia, in much of northern and central parts of Uganda …

11 - 20 September 2023 Read More
Recent rainfall totals
Recent rainfall totals

Heavy rainfall exceeding 100 mm was observed in parts of western Ethiopia, and southern parts of South Sudan.

Moderate to heavy rainfall of between 26 - 100 mm was observed in the most southern parts …

11 - 20 September 2023 Read More
Recent rainfall anomalies
Recent rainfall anomalies

Wetter than usual conditions were observed in several parts of South Sudan, in much of northern and central parts of Uganda, eastern Sudan, in western parts of Kenya, and in much of Rwanda and Burundi. …

11 - 20 September 2023 Read More
Recent rainfall totals
Recent rainfall totals

Moderate to heavy rainfall of between 26 - 200 mm was observed in the most southern parts of Sudan, western and north-western Ethiopia, in several parts of South Sudan and Uganda, in western Rwanda, and …

1 - 10 September 2023 Read More
Recent rainfall anomalies
Recent rainfall anomalies

Wetter than usual conditions were observed in some parts of western Ethiopia, eastern Uganda, and western Kenya.

Drier than usual conditions were observed in central, eastern, south-eastern, and south-western part of Sudan, in coastal and …

1 - 10 September 2023 Read More
Standardized Precipitation Index
Standardized Precipitation Index

Moderately to severely dry conditions were observed in much of central, eastern and southern parts of Sudan, in western and central parts of Eritrea, in northern, north-eastern, central and southern parts of Ethiopia, in north-western …

1 - 10 September 2023 Read More
Recent rainfall totals
Recent rainfall totals

Moderate to heavy rainfall of between 26 - 100 mm was observed in the southern parts of Sudan, western Eritrea, in several parts of South Sudan, in northern, western and central parts of Ethiopia, in …

21 - 31 August 2023 Read More
Standardized Precipitation Index
Standardized Precipitation Index

Moderately to severely dry conditions were observed in southwestern and southeastern parts of Sudan, in northwestern and southern parts of Somalia, in several parts of Ethiopia, in western, central and southern parts of South Sudan, …

21 - 31 August 2023 Read More