Nigeria could experience higher temperatures and shifts in rainfall patterns as a strengthening El Niño event raises concerns about agriculture, water availability, electricity generation and public health.
The World Meteorological Organisation (WMO) said in September 2026 that El Niño was expected to develop into a very strong event and continue into early 2027. The Nigerian Meteorological Agency (NiMet) has also warned that the phenomenon could influence rainfall distribution, including the duration and end of the rainy season.
The potential effects have prompted questions about what El Niño means, how it could affect Nigeria and what steps individuals and authorities can take to prepare.
What is El Niño?
El Niño is a naturally occurring climate phenomenon associated with warmer-than-average surface waters in the central and eastern tropical Pacific Ocean.
The warming influences atmospheric circulation and can change weather patterns across different parts of the world. Depending on the region, the effects may include increased temperatures, below-average or excessive rainfall and changes in seasonal conditions.
El Niño forms part of the El Niño-Southern Oscillation (ENSO), a climate pattern that also includes La Niña, its cooler phase, and neutral conditions.
According to the WMO, El Niño generally occurs every two to seven years and lasts between nine and 12 months.
Although it develops far from Nigeria, its influence on global atmospheric circulation can affect weather conditions in West Africa. However, the effects vary by location, and an El Niño event does not automatically mean every part of Nigeria will experience drought or extreme heat.
What could El Niño mean for Nigeria?
NiMet’s August 2026 seasonal climate update identified the onset of a strong El Niño event and outlined possible consequences for rainfall, farming, water resources and energy production.
For August to October 2026, the agency forecast normal to above-normal rainfall across much of northern Nigeria. Some parts of the South-West and Cross River State, however, were expected to record normal to below-normal rainfall.
These projections suggest that the effects could differ significantly across the country.
1. Rising temperatures and public health risks
Higher temperatures are among the concerns associated with the developing climate event.
In October 2026, the Climate Impact Lab projected that Nigeria could experience an additional 31,400 heat-related deaths between September 2026 and February 2027 compared with an average year.
The figure is a model-based estimate of potential excess deaths, not a confirmed death toll or a guarantee that the projected deaths will occur.
Extreme heat can cause dehydration, heat exhaustion and potentially fatal heatstroke. Children, older people and outdoor workers may face particular risks.
Health authorities can help reduce these dangers by issuing timely heat warnings, educating the public and preparing health facilities to respond to heat-related emergencies.
Residents are advised to drink water regularly, seek shade, reduce strenuous outdoor activities during the hottest periods where possible and check on vulnerable relatives and neighbours.
2. Agriculture and food production
Changes in rainfall could disrupt planting schedules and crop development. Extended dry spells or an early end to the rainy season may reduce harvests, while excessive rainfall could cause flooding and damage farmland.
NiMet has highlighted possible agricultural risks in areas expecting below-normal rainfall, including parts of Borno and Yobe states.
Farmers can reduce potential losses by following updated weather forecasts, considering early-maturing or drought-tolerant crop varieties where suitable and consulting agricultural extension officers.
In areas expecting heavier rainfall, maintaining drainage channels may help limit flooding and waterlogging on farms.
Government agencies also have a role in ensuring that farmers receive timely weather information and practical agricultural advice.
3. Water availability and electricity generation
Prolonged rainfall deficits can reduce river flows, reservoir levels and groundwater replenishment, potentially placing pressure on household water supplies and irrigation.
Hydropower generation may also be affected if water flowing into dams declines. NiMet has identified reduced water availability and lower reservoir inflows as possible risks, although these projections do not establish that Nigeria will experience nationwide water shortages or electricity disruptions.
Water authorities should monitor reservoirs and groundwater levels, identify vulnerable communities and prepare contingency plans for potential shortages.
Households can also help conserve available supplies by repairing leaking taps and avoiding unnecessary water use.
4. Food prices and household expenses
Adverse weather conditions could affect food production, damage farms and disrupt transportation, potentially putting pressure on food availability and prices.
However, El Niño alone does not mean food prices will rise throughout Nigeria. Actual prices will also depend on harvest levels, storage facilities, transportation costs and broader market conditions.
Authorities can help reduce avoidable losses by monitoring food supplies, supporting farmers in vulnerable locations and strengthening storage and distribution systems.
How Nigeria can prepare
Preparing for the potential effects of El Niño requires coordinated action from government agencies, state authorities, farmers, healthcare workers, businesses and residents.
NiMet should continue providing updated, location-specific forecasts and ensure that warnings reach rural communities and farmers, including those without reliable internet access.
Health authorities should intensify public education on heat-related illnesses and strengthen emergency responses, particularly for vulnerable groups.
Agricultural ministries and extension officers should provide guidance on planting schedules, crop selection, irrigation and drainage based on the latest forecasts.
Water agencies should monitor dams and reservoirs, reduce distribution losses and prepare for communities that may experience shortages. At the same time, emergency plans must account for heavy rainfall and flooding rather than focus exclusively on drought.
Government agencies, broadcasters and journalists should communicate climate information clearly, distinguish projections from confirmed developments and update the public as new information becomes available.
Does El Niño mean Nigeria is heading for a disaster?
Not necessarily. El Niño can increase the likelihood of certain climate-related impacts, but it cannot determine exactly what will happen in every state.
The WMO has emphasised that even a very strong El Niño event does not produce equally severe effects everywhere. Local weather patterns and other climate influences can change its impact.
Nigeria’s priority should therefore be to identify areas most vulnerable to heat and rainfall changes and prepare accordingly. Following NiMet’s updates and adopting practical precautions can help reduce risks to public health, agriculture, water resources and electricity generation.
Ultimately, the challenge is not only the strength of the El Niño event but also how effectively Nigeria prepares for its possible consequences.
Source: Vanguard
