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 parts of Djibouti, in northeastern and eastern Ethiopia, in central and part of northern Somalia, in southeastern part of South Sudan, in part of western Uganda, …

11 - 20 April 2024 Read More
Recent rainfall totals
Recent rainfall totals

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

Moderate to heavy rainfall of between 51-200 mm was observed in southwestern Ethiopia, in central and eastern parts of Uganda, in western, central and …

11 - 20 April 2024 Read More
Recent rainfall anomalies
Recent rainfall anomalies

Wetter than and much wetter than usual conditions were observed in much of Djibouti, in central and southern parts of Eritrea, in northwestern and southern Somalia, in parts of northeastern, central and southern Ethiopia, in …

1 - 10 April 2024 Read More
Standardized Precipitation Index
Standardized Precipitation Index

Moderately wet to extremely wet conditions were observed in the northern, central, eastern and parts of western Kenya, in northeastern and eastern South Sudan, in northwestern, western and coastal parts of Tanzania, in southern Somalia, …

1 - 10 April 2024 Read More
Recent rainfall totals
Recent rainfall totals

Heavy rainfall exceeding 200mm was observed in central parts of Kenya and in part of southwestern Tanzania.

Moderate to heavy rainfall of between 51-200 mm was observed in central Eritrea, in southern Ethiopia, in northern, …

1 - 10 April 2024 Read More
Standardized Precipitation Index
Standardized Precipitation Index

Moderately wet to extremely wet conditions were observed in the southern parts of Burundi, in northwestern, western and eastern Tanzania, in central and south-central parts of Kenya, in central and southern Eritrea, in several parts …

21 - 31 March 2024 Read More
Recent rainfall anomalies
Recent rainfall anomalies

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

21 - 31 March 2024 Read More
Recent rainfall totals
Recent rainfall totals

Moderate to heavy rainfall of between 51-200 mm was observed in several parts of Rwanda and Burundi, in northwestern, western, eastern and southern Tanzania, in parts of southeastern Uganda, in parts of western and southern …

21 - 31 March 2024 Read More
Recent rainfall anomalies
Recent rainfall anomalies

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

11 - 20 March 2024 Read More
Recent rainfall totals
Recent rainfall totals

Moderate rainfall of between 26 - 100 mm was observed in Rwanda, western and southern Burundi, and in western southern and coastal parts of Tanzania.

Light rainfall of between 6- 25 mm occurred in western …

11 - 20 March 2024 Read More
Standardized Precipitation Index
Standardized Precipitation Index

Moderately dry to extremely dry conditions were observed in southern and central parts of South Sudan, northeastern and southwestern parts of Ethiopia, in much of Uganda, in western Kenya, in parts of southern Rwanda, and …

11 - 20 March 2024 Read More
Standardized Precipitation Index
Standardized Precipitation Index

Moderately wet to severely wet conditions were observed in some parts of central and northeastern Ethiopia, in southeastern part of South Sudan, in southeastern part of Uganda, and in part of western Kenya.

Moderately dry …

1 - 10 March 2024 Read More
Recent rainfall anomalies
Recent rainfall anomalies

Wetter than and much wetter than usual conditions were observed some parts of central and northeastern Ethiopia, in part of south eastern South Sudan, in southeastern part of Uganda, and in part of western Kenya. …

1 - 10 March 2024 Read More
Recent rainfall totals
Recent rainfall totals

Moderate to heavy rainfall of between 51-200 mm was observed in parts of western Kenya, and in parts of western and southern Tanzania.

Moderate rainfall of between 26 - 50 mm was observed in central …

1 - 10 March 2024 Read More
Standardized Precipitation Index
Standardized Precipitation Index

Moderately wet to severely wet conditions were observed in several parts of Uganda, in much of western, central and southern parts of Kenya, in central, western and southern Tanzania, and in parts of central and …

21 - 29 February 2024 Read More