Climate Overview
The climate in Visconde do Rio Branco is warm and mild. The average annual temperature is 22°C and approximately 1371mm of precipitation falls per year. December is the wettest month, receiving around 248mm of rainfall. Visconde do Rio Branco 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: February, January, March. The coldest months are July, August, June, when temperatures can drop to 13°C.
Temperature
Visconde do Rio Branco sees moderate temperature variation throughout the year, ranging from 13°C to 29°C. The warmest month is February, when average highs reach 29°C and the mean temperature sits around 24°C. July is the coolest month, with minimum temperatures around 13°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 2°C shift in average temperatures.
Precipitation
Visconde do Rio Branco is a fairly wet location, receiving approximately 1371mm of precipitation annually, which averages out to around 114mm per month. The wettest month is December, averaging 248mm of rainfall. January and November also tend to see above-average precipitation. The driest month is July, with just 10mm. That's 237mm less than December, 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.
Wind
Visconde do Rio Branco is relatively calm, with an average annual wind speed of 3km/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 April, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.
Seasons
12 days until Winter
It is currently autumn in Visconde do Rio Branco, which began on March 20, 2026. Visconde do Rio Branco 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 February at around 29°C, while the coldest stretch bottoms out in July near 13°C. Winter is next, beginning on June 21, 2026 — 12 days from now.
Spring
Temperatures range from 16 to 27°C. Rainfall is heavy, totalling around 382mm across the season with a monthly average of 127mm. Winds are generally light, averaging 3km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 20 to 29°C. Rainfall is heavy, totalling around 679mm across the season with a monthly average of 226mm. Winds are generally light, averaging 3km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 15 to 29°C. Precipitation is moderate at around 253mm for the season, averaging 84mm per month. Winds are generally light, averaging 3km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 13 to 25°C. Rainfall is relatively light, with around 58mm over the season and a monthly average of 19mm. Winds are generally light, averaging 3km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit Visconde do Rio Branco is during April, May, June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 37mm per month. By contrast, February can be uncomfortably hot with temperatures reaching 29°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.
Monthly Climate Data
The table below shows monthly climate averages for Visconde do Rio Branco 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.