Climate Insights for Santa Catarina

The climate in Santa Catarina is warm and mild. The average annual temperature is 21°C and approximately 828mm of precipitation falls per year. Santa Catarina receives a notable amount of rainfall throughout the year, including during its driest month. Santa Catarina is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, December, February, when temperatures can drop to 9°C.

Temperatures in Santa Catarina vary considerably across the year, with a 24°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 33°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 9°C and an average of 14°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 4°C shift in average temperatures.

Santa Catarina is a moderately rainy area, receiving approximately 828mm of precipitation annually, which averages out to around 69mm per month. The wettest month is September, averaging 147mm of rainfall. May and April also tend to see above-average precipitation. The driest month is August, with just 32mm. That's 115mm less than September, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.

Santa Catarina is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.

It is currently summer in Santa Catarina, which began on June 21, 2026. Santa Catarina is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 33°C, while the coldest stretch bottoms out in January near 9°C. Autumn is next, beginning on September 23, 2026 — 93 days from now.

The best time to visit Santa Catarina is during February, March, April, October and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 58mm per month. By contrast, August can be uncomfortably hot with highs reaching 33°C, while January is the coldest period with lows dropping to 9°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Santa Catarina 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.