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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Standardized Precipitation Index
Standardized Precipitation Index

Moderately dry to severely dry conditions were observed in southern parts of Sudan, in southern Eritrea, in several parts of South Sudan, in isolated parts of western, southwestern, central, northeastern and eastern Ethiopia, in parts …

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

Moderately dry to severely dry conditions were observed in southeastern and south-central parts of Sudan, in northeastern, eastern, central and parts of western South Sudan, in northwestern, western and parts of central Ethiopia, in several …

21 - 31 August 2024 Read More
Standardized Precipitation Index
Standardized Precipitation Index

Moderately wet to severely wet conditions were observed in several parts of Eritrea and Djibouti, in much of the central western to eastern Sudan, in northeastern part of Ethiopia, in central and parts of southern …

10 - 20 August 2024 Read More
Standardized Precipitation Index
Standardized Precipitation Index

Moderately dry to severely dry conditions were observed in southwestern, south-central and southeastern Sudan, in much of western South Sudan, in western and central Ethiopia, in northwestern, northern and southwestern Uganda and in parts of …

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

Moderately dry to severely dry conditions were observed in southeastern parts of Sudan, in southwestern Eritrea, in northwestern and western Ethiopia, in southeastern Somalia, in parts of eastern and southwestern South Sudan, and part of …

21 - 31 July 2024 Read More
Standardized Precipitation Index
Standardized Precipitation Index

Moderately wet to severely wet conditions were observed in central to southwestern parts of Sudan, in western, central and northeastern Ethiopia, in southern Djibouti, in central, eastern and southeastern South Sudan, and in eastern Uganda. …

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

Moderately wet to severely wet conditions were observed in some parts of southern, central and eastern Sudan, in several parts of South Sudan and Uganda, in western parts of Eritrea, in southwestern, central to northeastern …

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

Moderately dry to severely dry conditions were observed in several parts of Uganda and South Sudan, in a few areas in central and south-central Sudan, in central and southwestern Ethiopia and in northern coast of …

21 - 30 June 2024 Read More
Standardized Precipitation Index
Standardized Precipitation Index

Moderately dry to severely dry conditions were observed in several parts of South Sudan, in part of southwestern, central and northeastern Ethiopia, in parts of north western and southeastern Tanzania, in northeastern and southwestern Uganda, …

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

Moderately dry to severely dry conditions were observed in part of southwest Sudan and northwest South Sudan, in western and parts of eastern Ethiopia, in parts of northwestern and southeastern Somalia, in southwestern Uganda, in …

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

Moderately dry to severely dry conditions were observed in southern parts of Sudan, in southwestern Eritrea, in northwestern, western, central and northeastern parts of Ethiopia extending into the northern parts of Somalia, in southwestern part …

21 - 31 May 2024 Read More
Standardized Precipitation Index
Standardized Precipitation Index

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

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

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

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

Moderately wet to severely wet conditions were observed in parts of Djibouti, in parts of central and southern Eritrea, in parts of northeastern, southeastern and southwestern Ethiopia, in part of southeastern South Sudan, in central …

21 - 30 April 2024 Read More
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