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Kenya

Nairobi River Basin

Current risk score

Updated 6 days ago

Score breakdown — every point explained

This score is the sum of the factors below. Nothing is hidden.

  • 24-hour rainfall
    9.1 mm in the last 24h vs threshold 50 mm (18% of threshold)
    +9
  • 7-day rainfall
    94.8 mm over the last 7 days vs threshold 150 mm (63% of threshold)
    +32
  • Dam infrastructure
    Ndakaini (Thika Dam) at near-capacity — increased compounding risk
    +10
Total risk score51

Rainfall trend

24h totals (bars) and 7-day totals (line) vs region thresholds.

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History of past changes

  • Oct 23, 2026 07:00High51Live9.1 mm in the last 24h vs threshold 50 mm (18% of threshold)
  • Oct 23, 2026 06:00High51Live9.1 mm in the last 24h vs threshold 50 mm (18% of threshold)
  • Oct 23, 2026 05:00High52Live12.5 mm in the last 24h vs threshold 50 mm (25% of threshold)
  • Oct 23, 2026 04:00High52Live12.5 mm in the last 24h vs threshold 50 mm (25% of threshold)
  • Oct 23, 2026 03:00High52Live12.5 mm in the last 24h vs threshold 50 mm (25% of threshold)
  • Oct 23, 2026 02:00High52Live12.5 mm in the last 24h vs threshold 50 mm (25% of threshold)
  • Oct 23, 2026 01:00Low11Live0.4 mm in the last 24h vs threshold 50 mm (1% of threshold)
  • Oct 23, 2026 00:00Low11Live0.4 mm in the last 24h vs threshold 50 mm (1% of threshold)
Thresholds: 24h 50 mm · 7d 150 mm.
Dam monitoring: Enabled.