Introduction
Kenya is entering a critical period as forecasts warn of a very strong El Niño in 2026–2027. With NOAA placing an 81% probability on extreme conditions during October–December 2026, communities must prepare for flooding, landslides, drought, livestock losses, and food insecurity.
What Is El Niño?
El Niño is a climate phenomenon caused by unusually warm Pacific Ocean temperatures, altering rainfall and temperature patterns worldwide. In Kenya, it can trigger floods in some regions and drought in others, making preparedness complex and urgent.
High-Risk Counties in Kenya (H2)
1. Nairobi, Mombasa & Kisumu (Urban Flooding)
- Flash floods due to poor drainage
- Road closures & transport disruption
- Damage to homes, schools, and businesses
- Informal settlements near rivers face severe risks
2. Coastal Kenya (Flooding & Storm Surges)
Counties: Tana River, Kilifi, Lamu, Mombasa, Kwale
- Riverine flooding in Tana River
- Coastal erosion & storm surges
- Urban flooding in Mombasa
3. Lake Victoria Basin (Floods & Landslides)
Counties: Kisumu, Busia, Siaya, Homa Bay, Migori
- Landslides in steep terrain
- Waterborne disease outbreaks
- Displacement of households
4. Rift Valley (Mixed Hazards)
Counties: Turkana, Baringo, West Pokot, Narok
- Flash floods & landslides
- Drought in pastoral areas
- Livestock losses
5. North Eastern Kenya (Drought & Food Insecurity)
Counties: Garissa, Wajir, Mandera
- Water shortages
- Poor pasture & livestock deaths
- Rising food insecurity
Why El Niño Can Cause Both Floods & Drought (H2)
- Heavy rains destroy crops, contaminate water, and cut off roads.
- Dry spells reduce pasture and water availability.
- Both extremes worsen food insecurity, raising prices and reducing household incomes.
Lessons from Past El Niño Events (H2)
- 1997–1998: Widespread flooding, deaths, and displacement.
- 2015–2016 & 2023–2024: Severe floods affected over 750,000 people, damaging agriculture and infrastructure.
- Key lesson: Preparedness reduces disaster impact.
Preparedness Measures for Kenya (H2)
Communities
- Clear drainage channels before rains.
- Identify evacuation routes.
- Secure important documents.
Farmers & Pastoralists
- Adjust planting based on forecasts.
- Protect livestock by moving them from flood-prone areas.
- Improve drainage in crop fields.
Authorities & Agencies
- Strengthen early-warning systems.
- Pre-position food, medicine, and rescue supplies.
- Protect critical infrastructure (roads, hospitals, schools).
Timeline of El Niño 2026–2027 (H2)
- July–Sept 2026: El Niño strengthening, preparedness phase.
- Oct–Dec 2026: Peak rainfall, flooding, and drought risks.
- Jan–Mar 2027: Continuing impacts, recovery, and monitoring.
Conclusion
Kenya’s 2026 El Niño threat is serious, with risks ranging from urban flooding in Nairobi and Mombasa to drought in Garissa and Mandera. With NOAA forecasting persistence into early 2027, the window for preparation is closing fast.
Early action – clearing drainage, protecting livestock, strengthening health systems – can save lives and reduce losses.
