Hot and muggy weekend in SC
Start of summer in the Southern Hemisphere: December 21, 2025 at 12:03 pm
Friday (12/19):
Tempo: steady and sunny in SC. In Greater Florianópolis and the north of the state, clouds increase at the end of the day due to maritime circulation.
Temperature: in elevation, with highs close to and above 30°C.
Vento: northeast, weak to moderate, with gusts on the South Coast and Greater Florianópolis (40 to 50km/h).
System: high pressure (dry air mass) moves away to the high seas.
Saturday (12/20):
Tempo: sun and some clouds in SC. In Greater Florianópolis and the north of the State, isolated rain conditions, especially at the ends of the day, due to maritime circulation.
Temperature: high, with maximum temperatures above 30°C, stuffy air.
Vento: east to northeast, weak to moderate, with gusts between Greater Florianópolis and Litoral Sul (40 to 50km/h).
System: hot air mass in SC.
Domingo (21/12):
Tempo: beginning of summer with sun and lots of heat in SC, with instability and isolated thunderstorms from the afternoon onwards, especially in the west and south of the State, due to low pressure areas in Argentina and RS. In Greater Florianópolis and the north, isolated rain conditions, especially at the ends of the day, due to maritime circulation.
Temperature: high, with highs close to and above 30°C, stuffy air.
Vento: northeast to northwest, weak to moderate, with gusts between Greater Florianópolis and Litoral Sul (40 to 60km/h).
Monday and Tuesday (22 and 23/12):
Tempo: variable cloudiness with sunny openings in SC. Conditions of isolated rain showers in the afternoon and early evening, especially in the West, Planalto Sul and Litoral Sul, due to instability in RS with the approach of a cold front. The risk of localized storms cannot be ruled out.
Temperature: high, with highs close to and above 30°C, stuffy air.
Vento: northeast, with variation to the south on Tuesday, weak to moderate, with gusts.
Gilsânia Cruz – Meteorologist (Epagri/Ciram)
The map presented on this website does not follow the IBGE political-administrative divisions. It was prepared based on climatological criteria, grouping the regions of Santa Catarina according to similarities in rainfall and temperature, which allows a more precise approach for weather forecasting and climate monitoring purposes.
