Climate Overview
The climate in Itacoatiara is hot. The average annual temperature is 28°C and approximately 2231mm of precipitation falls per year. Itacoatiara receives a notable amount of rainfall throughout the year, including during its driest month. Itacoatiara sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Itacoatiara has relatively stable temperatures year-round, staying within a 10°C range. The warmest month is September, when average highs reach 34°C and the mean temperature sits around 30°C. June 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 7°C between highs and lows.
Precipitation
Itacoatiara is a very wet location, receiving approximately 2231mm of precipitation annually, which averages out to around 186mm per month. The wettest month is April, averaging 343mm of rainfall. March and December also tend to see above-average precipitation. The driest month is August, with just 40mm. That's 303mm 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
Itacoatiara is relatively calm, with an average annual wind speed of 3km/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 April, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.
Seasons
13 days until Winter
It is currently autumn in Itacoatiara, which began on March 20, 2026. Itacoatiara 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 34°C, while the coldest stretch bottoms out in June near 24°C. Winter is next, beginning on June 21, 2026 — 13 days from now.
Spring
Temperatures range from 25 to 34°C. Precipitation is moderate at around 284mm for the season, averaging 95mm per month. 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 31°C. Rainfall is heavy, totalling around 823mm across the season with a monthly average of 274mm. Winds are generally light, averaging 3km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 24 to 30°C. Rainfall is heavy, totalling around 925mm across the season with a monthly average of 308mm. Winds are generally light, averaging 3km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 24 to 33°C. Precipitation is moderate at around 199mm for the season, averaging 66mm per month. Winds are generally light, averaging 3km/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 Itacoatiara 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.
