Kenya
Narrative updated. “El Niño is strengthening over the Greater Horn — and Kenya's short rains are next in line”
El Niño conditions have strengthened across the Greater Horn of Africa, and Kenya is expected to face heavy rainfall from October as the short-rains season begins. The July–October window was Kenya's normal dry season, with temperatures running about +0.8°C above average, so the concern is not current rainfall but the projected OND deluge and its flood risk along the Tana and in the Rift Valley. Analysts warn the wet signal is arriving alongside rising global commodity prices, compounding food and input-cost pressures on farmers and insurers.
7.7 mm vs 18.6 mm normal — too little rain in this window for a % to mean anything
The July–October window is Kenya's climatological dry season, so no meaningful rainfall anomaly applies; articles instead project well-above-normal short rains (OND) with heavy rainfall from October, consistent with the canonical El Niño signal.
News source27.26°C mean vs 26.41°C normal
Mean temperatures for the dry-season window ran about +0.8°C above normal, and El Niño conditions are expected to keep conditions warmer than average into the short-rains season.
The short-rains planting calendar remains on schedule, but projected heavy OND rainfall is expected to waterlog fields, delay harvesting and raise post-harvest losses in low-lying and flood-prone areas.
NASA POWER (MERRA-2) reanalysis, 9 Jul 2026 – 6 Oct 2026, sampled at the country centroid (1.0°, 38.0°). Normals are 1991–2020. How this is computed
When it matters
Agricultural calendar for Kenya and where the El Niño impact window falls
Last 12 months vs normal
Observed monthly rainfall against the 1991–2020 climatology
Sector by sector
Projected above-normal OND rains should boost short-rains yields but risk waterlogging, delayed harvests and post-harvest losses, while higher global commodity prices raise input costs.
Heavy rainfall is expected to recharge dams and aquifers but also to trigger flash floods along the Tana and in the Rift Valley, with contamination risks for surface supplies.
Standing floodwater is expected to raise cholera, malaria and waterborne disease risks, while crop losses and higher food prices threaten nutrition.
Above-normal rains should lift hydropower output on the Seven Forks cascade, though flooding can damage transmission lines and force outages.
Flooding and turbid, fast-flowing rivers may disrupt inland and lake fishing, damage landing sites and push fish stocks away from usual grounds.
What happened last time
Past El Niño episodes and how Kenya responded. See the full ENSO timeline →
2023-24
El Niño-driven short rains caused severe flooding in northern and eastern Kenya, displacing thousands and damaging roads, schools and farmland.
unsourced background2015-16
A strong El Niño produced well-above-normal OND rains in Kenya, with flooding, displacement and livestock and crop losses in several counties.
unsourced background1997-98
One of the strongest El Niño events on record brought exceptional short rains to Kenya, causing widespread flooding along the Tana and in the Rift Valley and major crop and infrastructure losses.
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