Climate Insights for Brasília

The climate in Brasília is warm and mild. The average annual temperature is 22°C and approximately 1250mm of precipitation falls per year. December is the wettest month, receiving around 228mm of rainfall. Brasília 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: September, October, August. The coldest months are July, June, August, when temperatures can drop to 14°C.

Brasília sees moderate temperature variation throughout the year, ranging from 14°C to 31°C. The warmest month is September, when average highs reach 31°C and the mean temperature sits around 24°C. July is the coolest month, with minimum temperatures around 14°C and an average of 20°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.

Brasília is a fairly wet location, receiving approximately 1250mm of precipitation annually, which averages out to around 104mm per month. The wettest month is December, averaging 228mm of rainfall. February and November also tend to see above-average precipitation. The driest month is July, with just 0mm. That's 227mm 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.

Brasília is mildly breezy, with an average annual wind speed of 13km/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 15km/h, though still comfortable for most outdoor activities. The calmest conditions occur in March, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4km/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 15km/h in winter, 13km/h in spring, 12km/h in summer, 12km/h in autumn.

It is currently autumn in Brasília, which began on March 20, 2026. Brasília 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 September at around 31°C, while the coldest stretch bottoms out in July near 14°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Brasília 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 23mm per month. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Brasília 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.