Resilience Scanner
Cities / Onitsha

Onitsha

Nigeria

Onitsha is projected to face multiple climate hazards that pose threats to its public health and environment. The city will likely experience extreme heat and prolonged drought conditions, leading to reduced water availability and adverse impacts on agriculture. High arbovirus transmission risk is expected, which could facilitate the spread of mosquito-borne diseases. Additionally, there will be an elevated risk of malaria due to increased temperatures and changing mosquito behavior, potentially exacerbating health challenges in the region. The interplay of these hazards underscores the urgency of addressing these vulnerabilities to safeguard the community against the impending consequences of climate change.

Hazard Outlook

How will Onitsha's projected climate hazards compare to other cities under a 3.0°C future warming scenario?

Maximum Temperature

62nd percentile Elevated exposure

Onitsha's projected maximum temperature of 9.9°C is higher than most cities globally under a 3.0°C warming scenario.

Onitsha
5.0 Cooler → Hotter 13

Elevation

42nd percentile Elevated exposure

At 58 m elevation, Onitsha faces elevated risk from coastal flooding and sea level rise.

Onitsha
-8.0 Lower → Higher 4k

Maximum Rainfall

44th percentile Moderate exposure

Onitsha's projected maximum rainfall of 10 mm is near the median of cities globally.

Onitsha
0.0 Lower → Higher 35

Longest Heatwave

20th percentile Lower exposure

Onitsha may experience heatwaves lasting up to 4 days, lower than most other cities.

Onitsha
0.0 Shorter → Longer 92

Heavy Rainfall Days

13th percentile Lower exposure

With 9 days of heavy rainfall expected, Onitsha ranks lower than most cities for extreme precipitation events.

Onitsha
0.0 Fewer → More 36

Exposure Summary

Max Temp
Elevation
Max Rain
Heatwave
Heavy Rain

Adaptation Priorities

Onitsha faces elevated exposure to max temp, elevation. These areas may warrant priority attention in adaptation planning.

Data source: Climate projections from the IPCC AR6 scenario analysis. See our methodology for details on how we process and interpret this data.

Deployed Solutions

Deployed climate adaptation technologies identified in Onitsha.

No solutions have been documented for Onitsha.

This is an archived snapshot of the database.

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