Burundi
Narrative updated. “Strong El Niño points to heavier OND rains over Burundi — and a higher flood risk”
A strong El Niño, with the latest ONI at +2.16, is expected to enhance Burundi's October–December short rains, the canonical wet signal for the country. The July–October window was the climatological dry season, so the measured -80% rainfall deficit against normal carries little weight, while temperatures ran +1.5°C above average. Regional alerts from WMO, OCHA and FEWS NET warn that the same enhanced rains bring a heightened risk of flooding, displacement and crop damage in Burundi and the wider Eastern Africa region.
15.2 mm vs 75.3 mm normal
The July–October window is Burundi's climatological dry season, so the measured -80% deficit versus the 1991–2020 normal is not meaningful; the articles instead point to enhanced October–December short rains under a strong El Niño.
News source20.49°C mean vs 18.98°C normal
Mean temperatures over the same window ran +1.5°C above normal, consistent with the warm ENSO phase and with the above-average heat flagged in regional El Niño alerts.
News sourceEl Niño typically makes Burundi wetter. Observed rainfall is running -80% — against the canonical response; local factors are dominating.
NASA POWER (MERRA-2) reanalysis, 9 Jul 2026 – 6 Oct 2026, sampled at the country centroid (-3.5°, 30.0°). Normals are 1991–2020. How this is computed
When it matters
Agricultural calendar for Burundi and where the El Niño impact window falls
Last 12 months vs normal
Observed monthly rainfall against the 1991–2020 climatology
Sector by sector
Above-average OND rains should support planting and the January–February short-rains harvest, but waterlogging and flooding could damage crops and delay field work.
Enhanced rainfall is likely to recharge rivers, lakes and reservoirs, yet heavy downpours raise the risk of flash floods and contamination of drinking-water sources.
Wetter conditions are expected to expand mosquito breeding and raise cholera and waterborne disease risk, while heat stress and nutrition pressures persist.
Increased inflows can boost hydropower generation on Burundi's rivers, though flood damage to small hydro and grid infrastructure remains a risk.
Higher river and lake levels may improve fish habitat but make fishing conditions more dangerous, with stronger currents and flood debris in Lake Tanganyika and inland waters.
What happened last time
Past El Niño episodes and how Burundi responded. See the full ENSO timeline →
2023-24
El Niño conditions were linked to destructive floods and landslides in Burundi, including the events described in IOM reporting on families losing homes and livelihoods.
Source2015-16
A very strong El Niño contributed to above-average OND rainfall and flooding across Burundi and neighbouring countries, displacing communities and damaging farmland.
unsourced background1997-98
One of the strongest El Niño events on record brought exceptionally heavy short rains to Burundi and the Great Lakes region, causing widespread flooding, landslides and crop losses.
unsourced backgroundLatest coverage
RSSStrong El Niño Signals Wetter Short Rains for Burundi — and a Sharper Flood Risk
A strong El Niño, with the latest ONI at +2.16, is expected to enhance Burundi's October–December short rains, the canonical wet signal for the country. The July–October window was the climatological
Highly variable seasonal conditions and developing El Niño signals concerns across East Africa
The Night the Floods Took Everything from a Mother in Burundi
Eastern Africa: El Niño Preparedness Alert - August 2026
Eight things to know about the humanitarian risks of El Niño across Southern and Eastern Africa
Nearby
Neighbouring countries