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 extremely wet conditions were observed in several parts of Tanzania, northwestern and eastern parts of Uganda, and in southwestern South Sudan.

Moderately dry conditions were observed in the southern parts of Ethiopia, …

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

Heavy rainfall exceeding 200mm was observed in parts of eastern Kenya.

Heavy rainfall of between 51-200 mm was observed in southwestern parts of South Sudan, in western and southern parts of Uganda, in western, central, …

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

Wetter than usual conditions were observed in western, central and southeastern part of South Sudan, in central Eritrea, in western and southern parts of Uganda, in southwestern, central, southeastern and coastal parts of Kenya, in …

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

Moderately wet to extremely wet conditions were observed in western, central, eastern and southern parts of South Sudan, in parts of western, central and southeastern Uganda, in southwestern, central and southeastern parts of Kenya, in …

21 - 30 November 2023 Read More
Recent rainfall totals
Recent rainfall totals

Heavy rainfall of between 51-200 mm was observed in southwestern and southern parts of Ethiopia, in central and southern parts of Somalia, in eastern, central, coastal and western parts of Kenya, in western and southern …

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

Wetter than usual conditions were observed in western and central Eritrea, in several parts of South Sudan, in northwestern, western, southern and eastern Ethiopia, in several parts of Somalia and Kenya, in southeastern and central …

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

Very heavy rainfall of between 200-300mm was observed in the central parts of Kenya.

Heavy rainfall of between 51-200 mm was observed in southwestern and south-central parts of Ethiopia, in southern parts of Somalia, in …

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

Wetter than usual conditions were observed in western and central Eritrea, in much of South Sudan, in northwestern, western, southern and eastern Ethiopia, in several parts of Somalia and Kenya, in southeastern Uganda, southern Burundi, …

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

Moderately wet to extremely wet conditions were observed in western and central parts of Eritrea, in southern parts of Sudan, in several parts of South Sudan and Somalia, in northwestern, western, southern and eastern Ethiopia, …

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

Heavy rainfall of between 51-200 mm was observed in northwestern, western and southern parts of Ethiopia, in central and southern parts of Somalia, in northeastern, central western and parts of coastal Kenya, in western parts …

21 - 31 October 2023 Read More
Recent rainfall anomalies
Recent rainfall anomalies

Wetter than usual conditions were observed in southern parts of Sudan in much of Eritrea and Djibouti, in several parts of Ethiopia, in several parts of Somalia, in northeastern Kenya, and in coastal Tanzania.

Drier …

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

Moderately wet to severely wet conditions were observed in southern and southeastern parts of Sudan, in much parts of Eritrea and Djibouti, in several parts of Ethiopia and Somalia, in northeastern Kenya, and in eastern …

21 - 31 October 2023 Read More
Recent rainfall totals
Recent rainfall totals

Heavy rainfall exceeding 100 mm was observed in a few areas in southwestern South Sudan, in northwestern Uganda, and southwestern Ethiopia.

Moderate to heavy rainfall of between 26 - 100 mm was observed in much …

11 - 20 October 2023 Read More
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