21-31, May 2022

Rainfall

Recent rainfall totals

Heavy to moderate rainfall between 50 - 200 mm was observed in south-western Ethiopia, over much of Uganda, in southern parts of South Sudan, in western parts of Kenya, much of Rwanda and Burundi, and in north-western Tanzania.

Light rainfall between 25 - 50 mm was observed in western, southern and eastern parts of South Sudan, south-western Uganda, central parts of Kenya, eastern Burundi, and in coastal parts of Tanzania.

Rainfall between 5 - 25 mm was observed in southern part of Sudan, northern parts of South Sudan; in northern, central and southern Ethiopia; in parts of north-western and southern Somalia, coastal parts of Kenya, and in north-eastern and eastern parts of Tanzania.

Usual dry (usually dry in this time of season) was observed in much of north and central Sudan, in Eritrea, Djibouti, in north-eastern and south-eastern Ethiopia, northern and central Somalia, in northern and eastern Kenya, and in western, central and southern Tanzania.

Recent rainfall anomalies

Wetter than and much wetter than normal conditions were observed in south-eastern part of South Sudan, south-western Ethiopia; much of western, northern and central Uganda; north-western and south-western Kenya, over much of Rwanda and Burundi, and in north-western Tanzania.

Normal rainfall conditions were observed in northern and central parts of Sudan, in Djibouti, in isolated areas in western and north-eastern South Sudan, western and southern Ethiopia, south-eastern Uganda, western and central parts of Kenya, and central and south-western parts of Tanzania.

Drier than normal conditions were observed over southern parts of Sudan, western and central Eritrea; in northern, central and eastern Ethiopia; over much of northern, central and western parts of South Sudan; in central, eastern and coastal Kenya; over much of Somalia, and in western and eastern parts of Tanzania.

Much drier than normal conditions were observed in some areas of southern Sudan, eastern Ethiopia, and central Somalia.

Standardized Precipitation Index

Moderately to extremely wet conditions were observed in south-eastern part of South Sudan, south-western Ethiopia; in much of northern, western and central Uganda; in north-western and south-western parts of Kenya; over much of Rwanda and Burundi, and in parts of north-western Tanzania.

Normal rainfall conditions were observed over northern, central, south-western, south-central and eastern parts of Sudan; western Eritrea, northern, southern and eastern Ethiopia; north-eastern and central parts of South Sudan; in south-eastern Uganda; in much of northern, eastern, western and central Kenya; in south-western Somalia, and in north-eastern, central and south-western Tanzania.

Moderately to severely drier than normal conditions were observed in southern parts of Sudan, southern Eritrea, in much of Djibouti, Somalia, in north-western and western parts of South Sudan, north-western and north-eastern Ethiopia, in coastal Kenya, and in western and coastal Tanzania.

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Recent rainfall totals
Recent rainfall totals

High Rainfall Accumulation (Light Green to Dark Green)

  • Highest Rainfall (101–200 mm): These values were concentrated in southwestern parts of the region including western parts of Tanzania.
  • Significant Rainfall (26–50 mm & 51–100 mm): …
11 - 20 January 2026 Read More
Recent rainfall anomalies
Recent rainfall anomalies

Wetter Than Normal Conditions (Green and Light Green)

  • Much Wetter than Normal (Dark Green): Concentrated heavily over the southern parts of the region including western Tanzania, and Burundi.
  • Wetter than Normal (Light Green): …
11 - 20 January 2026 Read More
Recent rainfall totals
Recent rainfall totals

High Rainfall Accumulation (Dark Green to Light Green)

  • Significant Rainfall (51–100 mm and 26–50 mm): These categories cover areas, in the southwestern parts of the region, including:
    • Several parts of Rwanda and Burundi.
    • Several …
1 - 10 January 2026 Read More
Recent rainfall anomalies
Recent rainfall anomalies

Wetter Than Normal Conditions (Green and Light Green)

  • Much Wetter than Normal (Dark Green): Observed over the southwestern parts of including in Rwanda, Burundi and most parts of Tanzania.
  • Wetter than Normal (Light …
1 - 10 January 2026 Read More
Recent rainfall totals
Recent rainfall totals

High Rainfall Accumulation (Dark Green to Light Green)

  • Highest Rainfall (201–300 mm and 101–200 mm): Rainfall amounts between 101 and 300 mm was observed Tanzania, and southern Kenya.
  • Significant Rainfall (51–100 mm and …
21 - 31 December 2025 Read More
Recent rainfall anomalies
Recent rainfall anomalies

Wetter Than Normal Conditions (Green and Light Green)

  • Much Wetter than Normal (Dark Green): Concentrated heavily in Kenya, Rwanda, Burundi, and Tanzania.
  • Wetter than Normal (Light Green): Forms a wide band surrounding …
21 - 31 December 2025 Read More
Recent rainfall anomalies
Recent rainfall anomalies

Wetter Than Normal Conditions (Green and Light Green)

  • Much Wetter than Normal (Dark Green): Concentrated heavily over the southern parts of the region including Tanzania, Burundi, Uganda, and Kenya.
  • Wetter than …
11 - 20 December 2025 Read More
Recent rainfall totals
Recent rainfall totals

High Rainfall Accumulation (Light Green to Dark Green)

  • Highest Rainfall (101–200 mm): These values were concentrated in northwestern and southeastern parts of Tanzania.
  • Significant Rainfall (26–50 mm & 51–100 mm): These values were recorded …
11 - 20 December 2025 Read More
Recent rainfall totals
Recent rainfall totals

High Rainfall Accumulation (Dark Green to Light Green)

  • Significant Rainfall (51–100 mm and 26–50 mm): These categories cover areas, in the southwestern parts of the region, including:
    • A few pockets in western Uganda
    • Several parts …
1 - 10 December 2025 Read More
Recent rainfall anomalies
Recent rainfall anomalies

Wetter Than Normal Conditions (Green and Light Green)

  • Much Wetter than Normal (Dark Green): Observed over the northeastern parts of Sudan.
  • Wetter than Normal (Light Green): Observed in some parts of western Tanzania.

Near …

1 - 10 December 2025 Read More
Recent rainfall totals
Recent rainfall totals

High Rainfall Accumulation (Dark Green to Light Green)

  • Highest Rainfall (201–300 mm and 101–200 mm): Rainfall amounts between 101 and 300 mm was observed Rwanda, Burundi, and central Kenya.
  • Significant Rainfall (51–100 …
21 - 30 November 2025 Read More
Recent rainfall anomalies
Recent rainfall anomalies

Wetter Than Normal Conditions (Green and Light Green)

  • Much Wetter than Normal (Dark Green): Concentrated heavily in Kenya, Rwanda, Burundi, and a few patches in northern Sudan.
  • Wetter than Normal (Light Green): …
21 - 30 November 2025 Read More
Standardized Precipitation Index
Standardized Precipitation Index

Moderately Wet to severely Wet Conditions

Only a few pockets in the region observed these conditions in the region.

Moderately Dry to Severely Dry Conditions

These conditions were observed in most countries including Tanzania, …

21 - 30 November 2025 Read More
Recent rainfall totals
Recent rainfall totals

High Rainfall Accumulation (Light Green to Dark Green)

  • Highest Rainfall (101–200 mm & 201–300 mm): These values are extremely high for a 10-day period. Rainfall amounts between 101 and 300 mm was observed in southwestern …
11 - 20 November 2025 Read More
Recent rainfall anomalies
Recent rainfall anomalies

Wetter Than Normal Conditions (Green and Light Green)

  • Much Wetter than Normal (Dark Green): Concentrated heavily over the northeastern parts of Sudan, South Sudan, parts of Eritrea, Djibouti, central to eastern parts …
11 - 20 November 2025 Read More