Climate Insights for São Sepé

The climate in São Sepé is warm and mild. The average annual temperature is 19°C and approximately 1450mm of precipitation falls per year. São Sepé receives a notable amount of rainfall throughout the year, including during its driest month. São Sepé is in the Southern Hemisphere. The seasons are reversed — summer runs from December to February, while winter falls between June and August. The summer months are: January, February, December. The coldest months are July, June, August, when temperatures can drop to 10°C.

Temperatures in São Sepé vary considerably across the year, with a 21°C difference between the coldest and warmest months. The warmest month is January, when average highs reach 31°C and the mean temperature sits around 25°C. July is the coolest month, with minimum temperatures around 10°C and an average of 13°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 4°C shift in average temperatures.

São Sepé is a fairly wet location, receiving approximately 1450mm of precipitation annually, which averages out to around 121mm per month. The wettest month is September, averaging 175mm of rainfall. May and October also tend to see above-average precipitation. The driest month is February, with just 73mm. That's 101mm less than September, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.

São Sepé is mildly breezy, with an average annual wind speed of 17km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 19km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 15km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4km/h between the calmest and windiest months.

It is currently autumn in São Sepé, which began on March 20, 2026. São Sepé is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in January at around 31°C, while the coldest stretch bottoms out in July near 10°C. Winter is next, beginning on June 21, 2026 — 87 days from now.

The best time to visit São Sepé is during February, April, August and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 89mm per month. By contrast, January can be uncomfortably hot with highs reaching 31°C, while July is the coldest period with lows dropping to 10°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.

The table below shows monthly climate averages for São Sepé 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.