Climate Overview
The climate in Barreirinha is hot. The average annual temperature is 28°C and approximately 2701mm of precipitation falls per year. Barreirinha receives a notable amount of rainfall throughout the year, including during its driest month. Barreirinha sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Barreirinha has relatively stable temperatures year-round, staying within a 9°C range. The warmest month is September, when average highs reach 33°C and the mean temperature sits around 29°C. January is the coolest month, with minimum temperatures around 24°C and an average of 27°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows.
Precipitation
Barreirinha is a very wet location, receiving approximately 2701mm of precipitation annually, which averages out to around 225mm per month. The wettest month is April, averaging 391mm of rainfall. March and February also tend to see above-average precipitation. The driest month is September, with just 57mm. That's 334mm less than April, 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
Barreirinha is relatively calm, with an average annual wind speed of 2km/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 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, 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
13 days until Winter
It is currently autumn in Barreirinha, which began on March 20, 2026. Barreirinha sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in September at around 33°C, while the coldest stretch bottoms out in January near 24°C. Winter is next, beginning on June 21, 2026 — 13 days from now.
Spring
Temperatures range from 25 to 33°C. Rainfall is heavy, totalling around 315mm across the season with a monthly average of 105mm. Winds are generally light, averaging 3km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 24 to 30°C. Rainfall is heavy, totalling around 1007mm across the season with a monthly average of 336mm. Winds are generally light, averaging 2km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 25 to 30°C. Rainfall is heavy, totalling around 1062mm across the season with a monthly average of 354mm. Winds are generally light, averaging 2km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 25 to 32°C. Rainfall is heavy, totalling around 317mm across the season with a monthly average of 106mm. Winds are generally light, averaging 2km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Barreirinha 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.
