Climate Insights for Nioro

The climate in Nioro is hot. The average annual temperature is 30°C and approximately 337mm of precipitation falls per year. August is the wettest month, receiving around 163mm of rainfall. Nioro is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: May, April, June. The coldest months are January, December, February, when temperatures can drop to 17°C.

Temperatures in Nioro vary considerably across the year, with a 25°C difference between the coldest and warmest months. May is the hottest month, with daytime highs reaching 42°C and an average of 36°C. January is the coolest month, with minimum temperatures around 17°C and an average of 24°C. On average, daily temperatures fluctuate by about 13°C between overnight lows and afternoon highs. The sharpest temperature change occurs between June and July, with a 4°C shift in average temperatures.

Nioro is a quite dry location, receiving approximately 337mm of precipitation annually, which averages out to around 28mm per month. The wettest month is August, averaging 163mm of rainfall. September and July also tend to see above-average precipitation. The driest month is December, with just 0mm. That's 163mm less than August, 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.

Nioro is mildly breezy, with an average annual wind speed of 16km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 19km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 14km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 5km/h between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 16km/h in winter, 17km/h in spring, 18km/h in summer, 14km/h in autumn.

It is currently spring in Nioro, which began on March 20, 2026. Nioro is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in May at around 42°C, while the coldest stretch bottoms out in January near 17°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Nioro is during January and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 0mm per month. By contrast, May can be uncomfortably hot with temperatures reaching 42°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Nioro 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.