Climate Overview
The climate in Sirinhaém is hot. The average annual temperature is 26°C and approximately 1207mm of precipitation falls per year. Sirinhaém receives a notable amount of rainfall throughout the year, including during its driest month. Sirinhaém sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Sirinhaém has relatively stable temperatures year-round, staying within a 6°C range. The warmest month is March, when average highs reach 29°C and the mean temperature sits around 27°C. August 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 3°C between highs and lows.
Precipitation
Sirinhaém is a fairly wet location, receiving approximately 1207mm of precipitation annually, which averages out to around 101mm per month. The wettest month is June, averaging 190mm of rainfall. May and July also tend to see above-average precipitation. The driest month is November, with just 40mm. That's 149mm less than June, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.
Wind
Sirinhaém 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 August, averaging 6km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 5km/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
12 days until Winter
It is currently autumn in Sirinhaém, which began on March 20, 2026. Sirinhaém sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in March at around 29°C, while the coldest stretch bottoms out in August near 23°C. Winter is next, beginning on June 21, 2026 — 12 days from now.
Spring
Temperatures range from 23 to 28°C. Rainfall is relatively light, with around 147mm over the season and a monthly average of 49mm. Winds are generally light, averaging 6km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 25 to 29°C. Precipitation is moderate at around 203mm for the season, averaging 68mm per month. Winds are generally light, averaging 5km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 25 to 29°C. Rainfall is heavy, totalling around 422mm across the season with a monthly average of 141mm. Winds are generally light, averaging 5km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 23 to 27°C. Rainfall is heavy, totalling around 435mm across the season with a monthly average of 145mm. Winds are generally light, averaging 6km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit Sirinhaém is during August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 25°C with modest rainfall averaging 80mm per month. By contrast, March can be uncomfortably hot with temperatures reaching 29°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.
Monthly Climate Data
The table below shows monthly climate averages for Sirinhaém 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.
