Climate Insights for Onitsha

The climate in Onitsha is hot. The average annual temperature is 28°C and approximately 1,223 mm of precipitation falls per year. September is the wettest month, receiving around 232 mm of rainfall. Onitsha sits near the equator, so seasonal temperature differences are minimal throughout the year.The climate in Onitsha is hot. The average annual temperature is 82°F and approximately 48.2 in of precipitation falls per year. September is the wettest month, receiving around 9.1 in of rainfall. Onitsha sits near the equator, so seasonal temperature differences are minimal throughout the year.

Onitsha sees moderate temperature variation throughout the year, ranging from 24°C to 37°C. February is the hottest month, with daytime highs reaching 37°C and an average of 31°C. January is the coolest month, with minimum temperatures around 24°C and an average of 29°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.Onitsha sees moderate temperature variation throughout the year, ranging from 75°F to 99°F. February is the hottest month, with daytime highs reaching 99°F and an average of 87°F. January is the coolest month, with minimum temperatures around 75°F and an average of 85°F. On average, daily temperatures fluctuate by about 15°F between overnight lows and afternoon highs.

Onitsha is a fairly wet location, receiving approximately 1,223 mm of precipitation annually, which averages out to around 102 mm per month. The wettest month is September, averaging 232 mm of rainfall. June and July also tend to see above-average precipitation. The driest month is January, with just 3 mm. That's 228 mm less than September, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.Onitsha is a fairly wet location, receiving approximately 48.2 in of precipitation annually, which averages out to around 4 in per month. The wettest month is September, averaging 9.1 in of rainfall. June and July also tend to see above-average precipitation. The driest month is January, with just 0.1 in. That's 9 in less than September, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Onitsha is relatively calm, with an average annual wind speed of 7km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 6km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months.Onitsha is mildly breezy, with an average annual wind speed of 5mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is March, averaging 6mph, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 4mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2mph gap between the calmest and windiest months.

The table below shows monthly climate averages for Onitsha based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Onitsha based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.