Climate Overview
The climate in Barreiros is hot. The average annual temperature is 26°C and approximately 1161mm of precipitation falls per year. Barreiros receives a notable amount of rainfall throughout the year, including during its driest month. Barreiros sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Barreiros has relatively stable temperatures year-round, staying within a 6°C range. The warmest month is February, when average highs reach 29°C and the mean temperature sits around 27°C. August is the coolest month, with minimum temperatures around 23°C and an average of 24°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows.
Precipitation
Barreiros is a moderately rainy area, receiving approximately 1161mm of precipitation annually, which averages out to around 97mm per month. The wettest month is June, averaging 180mm of rainfall. May and March also tend to see above-average precipitation. The driest month is November, with just 40mm. That's 139mm less than June, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.
Wind
Barreiros is relatively calm, with an average annual wind speed of 5km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is November, averaging 6km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.
Seasons
12 days until Winter
It is currently autumn in Barreiros, which began on March 20, 2026. Barreiros sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in February at around 29°C, while the coldest stretch bottoms out in August near 23°C. Winter is next, beginning on June 21, 2026 — 12 days from now.
Spring
Temperatures range from 23 to 29°C. Rainfall is relatively light, with around 142mm over the season and a monthly average of 47mm. Winds are generally light, averaging 6km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 25 to 29°C. Precipitation is moderate at around 190mm for the season, averaging 63mm per month. Winds are generally light, averaging 5km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 24 to 29°C. Rainfall is heavy, totalling around 422mm across the season with a monthly average of 141mm. Winds are generally light, averaging 4km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 23 to 27°C. Rainfall is heavy, totalling around 407mm across the season with a monthly average of 136mm. Winds are generally light, averaging 5km/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 Barreiros is during August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 25°C with modest rainfall averaging 76mm per month. By contrast, February can be uncomfortably hot with temperatures reaching 29°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.
Monthly Climate Data
The table below shows monthly climate averages for Barreiros 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.
