Climate Overview
The climate in Careiro da Várzea is hot. The average annual temperature is 27°C and approximately 2799mm of precipitation falls per year. Careiro da Várzea receives a notable amount of rainfall throughout the year, including during its driest month. Careiro da Várzea sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Careiro da Várzea has relatively stable temperatures year-round, staying within a 8°C range. The warmest month is August, when average highs reach 33°C and the mean temperature sits around 28°C. December is the coolest month, with minimum temperatures around 25°C and an average of 27°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows.
Precipitation
Careiro da Várzea is a very wet location, receiving approximately 2799mm of precipitation annually, which averages out to around 233mm per month. The wettest month is March, averaging 402mm of rainfall. December and April also tend to see above-average precipitation. The driest month is August, with just 66mm. That's 336mm 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.
Wind
Careiro da Várzea is relatively calm, with an average annual wind speed of 1km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 1km/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
84 days until Spring
It is currently winter in Careiro da Várzea, which began on June 21, 2026. Careiro da Várzea sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in August at around 33°C, while the coldest stretch bottoms out in December near 25°C. Spring is next, beginning on September 23, 2026 — 84 days from now.
Spring
Temperatures range from 25 to 33°C. Rainfall is heavy, totalling around 486mm across the season with a monthly average of 162mm. Winds are generally light, averaging 1km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 25 to 30°C. Rainfall is heavy, totalling around 920mm across the season with a monthly average of 307mm. 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 1088mm across the season with a monthly average of 363mm. Winds are generally light, averaging 1km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 25 to 33°C. Rainfall is heavy, totalling around 305mm across the season with a monthly average of 102mm. Winds are generally light, averaging 1km/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 Careiro da Várzea 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.
