Climate Overview
The climate in São Gonçalo do Amarante is hot. The average annual temperature is 27°C and approximately 955mm of precipitation falls per year. January is the wettest month, receiving around 236mm of rainfall. São Gonçalo do Amarante sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
São Gonçalo do Amarante has relatively stable temperatures year-round, staying within a 5°C range. The warmest month is October, when average highs reach 30°C and the mean temperature sits around 27°C. August 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 4°C between highs and lows.
Precipitation
São Gonçalo do Amarante is a moderately rainy area, receiving approximately 955mm of precipitation annually, which averages out to around 80mm per month. The wettest month is January, averaging 236mm of rainfall. April and February also tend to see above-average precipitation. The driest month is September, with just 6mm. That's 229mm less than January, 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
São Gonçalo do Amarante is relatively calm, with an average annual wind speed of 6km/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 7km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months.
Seasons
61 days until Spring
It is currently winter in São Gonçalo do Amarante, which began on June 21, 2026. São Gonçalo do Amarante sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in October at around 30°C, while the coldest stretch bottoms out in August near 25°C. Spring is next, beginning on September 23, 2026 — 61 days from now.
Spring
Temperatures range from 25 to 30°C. Precipitation is minimal, with only around 30mm for the entire season. Winds are generally light, averaging 7km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 25 to 30°C. Rainfall is heavy, totalling around 456mm across the season with a monthly average of 152mm. Winds are generally light, averaging 5km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 26 to 30°C. Rainfall is heavy, totalling around 413mm across the season with a monthly average of 138mm. Winds are generally light, averaging 5km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 25 to 30°C. Rainfall is relatively light, with around 57mm over the season and a monthly average of 19mm. Winds are generally light, averaging 6km/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 São Gonçalo do Amarante 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.