Click on a day for an hourly weather forecast
The temperatures in Florianopolis in September are comfortable with low of 15°C and and high up to 22°C.
You can expect about 3 to 8 days of rain in Florianopolis during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Florianopolis in September 2025.
If you’re planning to visit Florianopolis in the near future, we highly recommend that you review the 14 day weather forecast for Florianopolis before you arrive.
Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
---|---|---|---|---|---|---|---|
January | 28° / 21° | 9 | 22 | 0 | 159 mm | Good | Florianopolis in January |
February | 29° / 21° | 8 | 21 | 0 | 132 mm | Ok | Florianopolis in February |
March | 27° / 20° | 6 | 25 | 0 | 96 mm | Perfect | Florianopolis in March |
April | 25° / 18° | 4 | 27 | 0 | 72 mm | Perfect | Florianopolis in April |
May | 22° / 15° | 5 | 26 | 0 | 96 mm | Good | Florianopolis in May |
June | 20° / 13° | 4 | 26 | 0 | 103 mm | Good | Florianopolis in June |
July | 20° / 13° | 5 | 26 | 0 | 77 mm | Good | Florianopolis in July |
August | 21° / 13° | 5 | 26 | 0 | 80 mm | Good | Florianopolis in August |
September | 22° / 15° | 6 | 24 | 0 | 105 mm | Good | Florianopolis in September |
October | 23° / 17° | 6 | 25 | 0 | 95 mm | Perfect | Florianopolis in October |
November | 25° / 18° | 5 | 25 | 0 | 78 mm | Perfect | Florianopolis in November |
December | 27° / 20° | 7 | 24 | 0 | 115 mm | Good | Florianopolis in December |