Climate Insights for Mwanza

The climate in Mwanza is warm and mild. The average annual temperature is 23°C and approximately 1421mm of precipitation falls per year. November is the wettest month, receiving around 257mm of rainfall. Mwanza sits near the equator, so seasonal temperature differences are minimal throughout the year.

Mwanza has relatively stable temperatures year-round, staying within a 6°C range. The warmest month is March, when average highs reach 26°C and the mean temperature sits around 24°C. July is the coolest month, with minimum temperatures around 20°C and an average of 23°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows.

Mwanza is a fairly wet location, receiving approximately 1421mm of precipitation annually, which averages out to around 118mm per month. The wettest month is November, averaging 257mm of rainfall. October and April also tend to see above-average precipitation. The driest month is July, with just 14mm. That's 244mm less than November, 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 mildly breezy, with an average annual wind speed of 18km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 23km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in December, with average winds dropping to 14km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 9km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 21km/h in winter, 17km/h in spring, 15km/h in summer, 17km/h in autumn.

It is currently autumn in Mwanza, which began on March 20, 2026. Mwanza sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in March at around 26°C, while the coldest stretch bottoms out in July near 20°C. Winter is next, beginning on June 21, 2026 — 90 days from now.

The best time to visit Mwanza is during February, May, June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 42mm per month. By contrast, March can be uncomfortably hot with temperatures reaching 26°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

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.