Climate Insights for Barro Alto

The climate in Barro Alto is warm and mild. The average annual temperature is 23°C and approximately 413mm of precipitation falls per year. November is the wettest month, receiving around 89mm of rainfall. Barro Alto 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: October, December, March. The coldest months are July, August, June, when temperatures can drop to 16°C.

Barro Alto sees moderate temperature variation throughout the year, ranging from 16°C to 32°C. The warmest month is October, when average highs reach 32°C and the mean temperature sits around 25°C. July is the coolest month, with minimum temperatures around 16°C and an average of 21°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs.

Barro Alto is a relatively dry area, receiving approximately 413mm of precipitation annually, which averages out to around 34mm per month. The wettest month is November, averaging 89mm of rainfall. January and December also tend to see above-average precipitation. The driest month is August, with just 2mm. That's 86mm 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.

Barro Alto is mildly breezy, with an average annual wind speed of 16km/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 19km/h, though still comfortable for most outdoor activities. The calmest conditions occur in February, with average winds dropping to 13km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 6km/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 18km/h in winter, 16km/h in spring, 13km/h in summer, 15km/h in autumn.

It is currently autumn in Barro Alto, which began on March 20, 2026. Barro Alto 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 October at around 32°C, while the coldest stretch bottoms out in July near 16°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Barro Alto is during January, February, March, April, May, June, July, August, September, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 35mm per month. By contrast, October can be uncomfortably hot with temperatures reaching 32°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 Barro Alto 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.