Climate Insights for Byumba

The climate in Byumba is warm and mild. The average annual temperature is 19°C and approximately 1510mm of precipitation falls per year. April is the wettest month, receiving around 248mm of rainfall. Byumba sits near the equator, so seasonal temperature differences are minimal throughout the year.

Byumba has relatively stable temperatures year-round, staying within a 10°C range. August is the warmest month, though highs remain moderate at 24°C with a mean of 19°C. November is the coolest month, with minimum temperatures around 14°C and an average of 18°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs.

Byumba is a fairly wet location, receiving approximately 1510mm of precipitation annually, which averages out to around 126mm per month. The wettest month is April, averaging 248mm of rainfall. November and March also tend to see above-average precipitation. The driest month is July, with just 11mm. That's 237mm less than April, 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.

Byumba is relatively calm, with an average annual wind speed of 11km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is August, averaging 13km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h 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 13km/h in winter, 12km/h in spring, 10km/h in summer, 10km/h in autumn.

It is currently autumn in Byumba, which began on March 20, 2026. Byumba sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in August at around 24°C, while the coldest stretch bottoms out in November near 14°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Byumba is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 27mm per month. By contrast, November can be quite cold with temperatures dropping to 14°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Byumba 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.