Climate Insights for Mwanza

The climate in Mwanza is warm and mild. The average annual temperature is 24°C and approximately 1008mm of precipitation falls per year. January is the wettest month, receiving around 286mm of rainfall. Mwanza is in the Southern Hemisphere. The seasons are reversed — summer runs from December to February, while winter falls between June and August. The summer months are: November, October, September. The coldest months are July, June, August, when temperatures can drop to 14°C.

Mwanza sees moderate temperature variation throughout the year, ranging from 14°C to 33°C. The warmest month is November, when average highs reach 33°C and the mean temperature sits around 28°C. July is the coolest month, with minimum temperatures around 14°C and an average of 19°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between August and September, with a 3°C shift in average temperatures.

Mwanza is a moderately rainy area, receiving approximately 1008mm of precipitation annually, which averages out to around 84mm per month. The wettest month is January, averaging 286mm of rainfall. March and December also tend to see above-average precipitation. The driest month is September, with just 6mm. That's 280mm less than January, 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.

Mwanza is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in February, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.

It is currently winter in Mwanza, which began on June 21, 2026. Mwanza is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in November at around 33°C, while the coldest stretch bottoms out in July near 14°C. Spring is next, beginning on September 23, 2026 — 92 days from now.

The best time to visit Mwanza is during April, May, June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 22°C with modest rainfall averaging 18mm per month. By contrast, November can be uncomfortably hot with temperatures reaching 33°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Mwanza 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.