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The temperatures in Santa Catarina 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 Santa Catarina 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 Santa Catarina in September 2025.
If you’re planning to visit Santa Catarina in the near future, we highly recommend that you review the 14 day weather forecast for Santa Catarina before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 28° / 21° | 9 | 22 | 0 | 159 mm | Good | Santa Catarina in January |
| February | 29° / 21° | 8 | 21 | 0 | 132 mm | Ok | Santa Catarina in February |
| March | 27° / 20° | 6 | 25 | 0 | 96 mm | Perfect | Santa Catarina in March |
| April | 25° / 18° | 4 | 27 | 0 | 72 mm | Perfect | Santa Catarina in April |
| May | 22° / 15° | 5 | 26 | 0 | 96 mm | Good | Santa Catarina in May |
| June | 20° / 13° | 4 | 26 | 0 | 103 mm | Good | Santa Catarina in June |
| July | 20° / 13° | 5 | 26 | 0 | 77 mm | Good | Santa Catarina in July |
| August | 21° / 13° | 5 | 26 | 0 | 80 mm | Good | Santa Catarina in August |
| September | 22° / 15° | 6 | 24 | 0 | 105 mm | Good | Santa Catarina in September |
| October | 23° / 17° | 6 | 25 | 0 | 95 mm | Perfect | Santa Catarina in October |
| November | 25° / 18° | 5 | 25 | 0 | 78 mm | Perfect | Santa Catarina in November |
| December | 27° / 20° | 7 | 24 | 0 | 115 mm | Good | Santa Catarina in December |
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