Climate Overview
The climate in São Lourenço do Sul Airport is warm and mild. The average annual temperature is 19°C and approximately 1416mm of precipitation falls per year. São Lourenço do Sul Airport receives a notable amount of rainfall throughout the year, including during its driest month. São Lourenço do Sul Airport 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.
Temperature
São Lourenço do Sul Airport sees moderate temperature variation throughout the year, ranging from 10°C to 29°C. The warmest month is January, when average highs reach 29°C and the mean temperature sits around 24°C. July is the coolest month, with minimum temperatures around 10°C and an average of 13°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between April and May, with a 4°C shift in average temperatures.
Precipitation
São Lourenço do Sul Airport is a fairly wet location, receiving approximately 1416mm of precipitation annually, which averages out to around 118mm per month. The wettest month is September, averaging 205mm of rainfall. October and January also tend to see above-average precipitation. The driest month is June, with just 84mm. That's 121mm 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.
Wind
São Lourenço do Sul Airport is mildly breezy, with an average annual wind speed of 20km/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 22km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in June, with average winds dropping to 18km/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.
Seasons
87 days until Winter
It is currently autumn in São Lourenço do Sul Airport, which began on March 20, 2026. São Lourenço do Sul Airport 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 29°C, while the coldest stretch bottoms out in July near 10°C. Winter is next, beginning on June 21, 2026 — 87 days from now.
Spring
Temperatures range from 13 to 25°C. Rainfall is heavy, totalling around 452mm across the season with a monthly average of 151mm. Winds are moderate at around 22km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 19 to 29°C. Rainfall is heavy, totalling around 312mm across the season with a monthly average of 104mm. Winds are moderate at around 20km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 13 to 27°C. Rainfall is heavy, totalling around 345mm across the season with a monthly average of 115mm. Winds are moderate at around 19km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 10 to 19°C. Rainfall is heavy, totalling around 306mm across the season with a monthly average of 102mm. Winds are moderate at around 19km/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 São Lourenço do Sul Airport is during February, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 22°C with modest rainfall averaging 92mm per month. By contrast, January can be uncomfortably hot with highs reaching 29°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.
Monthly Climate Data
The table below shows monthly climate averages for São Lourenço do Sul Airport 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.