Climate Overview
The climate in Benjamin Constant is hot. The average annual temperature is 26°C and approximately 2870mm of precipitation falls per year. Benjamin Constant receives a notable amount of rainfall throughout the year, including during its driest month. Benjamin Constant sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Benjamin Constant has relatively stable temperatures year-round, staying within a 9°C range. The warmest month is September, when average highs reach 32°C and the mean temperature sits around 27°C. July is the coolest month, with minimum temperatures around 23°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows.
Precipitation
Benjamin Constant is a very wet location, receiving approximately 2870mm of precipitation annually, which averages out to around 239mm per month. The wettest month is January, averaging 357mm of rainfall. March and February also tend to see above-average precipitation. The driest month is August, with just 105mm. That's 253mm less than January, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.
Wind
Benjamin Constant is relatively calm, with an average annual wind speed of 7km/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 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 7km/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
89 days until Winter
It is currently autumn in Benjamin Constant, which began on March 20, 2026. Benjamin Constant 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 32°C, while the coldest stretch bottoms out in July near 23°C. Winter is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 23 to 32°C. Rainfall is heavy, totalling around 561mm across the season with a monthly average of 187mm. Winds are generally light, averaging 7km/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 1017mm across the season with a monthly average of 339mm. Winds are generally light, averaging 7km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 23 to 30°C. Rainfall is heavy, totalling around 904mm across the season with a monthly average of 301mm. Winds are generally light, averaging 7km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 23 to 31°C. Rainfall is heavy, totalling around 388mm across the season with a monthly average of 129mm. Winds are generally light, averaging 7km/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 Benjamin Constant 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.
