Climate Insights for Atibaia

The climate in Atibaia is hot. The average annual temperature is 26°C and approximately 275mm of precipitation falls per year. September is the wettest month, receiving around 33mm of rainfall. Atibaia 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: July, May, June. The coldest months are March, April, May, when temperatures can drop to 20°C.

Atibaia sees moderate temperature variation throughout the year, ranging from 20°C to 32°C. The warmest month is July, when average highs reach 32°C and the mean temperature sits around 27°C. March 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 4°C between highs and lows. The sharpest temperature change occurs between March and April, with a 3°C shift in average temperatures.

Atibaia is a quite dry location, receiving approximately 275mm of precipitation annually, which averages out to around 23mm per month. The wettest month is March, averaging 33mm of rainfall. April and May also tend to see above-average precipitation. The driest month is December, with just 4mm. That's 29mm less than March, 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.

Atibaia is relatively calm, with an average annual wind speed of 4km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is September, averaging 7km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 6km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans.

It is currently winter in Atibaia, which began on June 21, 2026. Atibaia 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 July at around 32°C, while the coldest stretch bottoms out in March near 20°C. Spring is next, beginning on September 23, 2026 — 16 days from now.

The best time to visit Atibaia is during February and March, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 21mm per month. By contrast, July can be uncomfortably hot with temperatures reaching 32°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Atibaia 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.