Santa Catarina (Florianópolis)
September
Weather in Santa Catarina for September 2025
Your guide to Santa Catarina weather in September - trends and predictions
In general, the average temperature in Santa Catarina at the beginning of September is 21.3 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 23.6 °C by the end of September.
The climate of Santa Catarina in September is notably wet, with an average of 12 rainy days, and a total of 89.4 mm of precipitation.
Temperatures
Rain 🌧️
18
Dry days
12
Rainy days
0
Snow days
23°/16°
Temperatures
21 km/h
Avg max wind
82 %
Avg humidity
Santa Catarina Weather September
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Temperatures trend during September in Santa Catarina
See the weather trend as well as the moving average line
September weather in Santa Catarina day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Cloudy | 23° /15° | 0 mm | 6 | |
| 2 Sept. |  Patchy rain possible | 19° /14° | 0.1 mm | 5 | |
| 3 Sept. |  Sunny | 23° /14° | 0 mm | 7 | |
| 4 Sept. | Sunny | 23° /15° | 0.5 mm | 7 | |
| 5 Sept. |  Heavy rain at times | 17° /13° | 3.9 mm | 5 | |
| 6 Sept. |  Overcast | 19° /11° | 0.1 mm | 5 | |
| 7 Sept. | Sunny | 25° /15° | 0 mm | 8 | |
| 8 Sept. | Sunny | 25° /17° | 0 mm | 8 | |
| 9 Sept. | Sunny | 23° /16° | 0 mm | 7 | |
| 10 Sept. | Sunny | 25° /17° | 0 mm | 8 | |
| 11 Sept. | Sunny | 30° /17° | 0 mm | 9 | |
| 12 Sept. | Cloudy | 24° /17° | 0 mm | 6 | |
| 13 Sept. |  Moderate rain at times | 25° /16° | 1.3 mm | 6 | |
| 14 Sept. | Moderate or heavy rain shower | 23° /16° | 13 mm | 6 | |
| 15 Sept. | Moderate or heavy rain shower | 16° /15° | 30.4 mm | 5 | |
| 16 Sept. | Patchy rain possible | 18° /14° | 4.1 mm | 5 | |
| 17 Sept. | Patchy rain possible | 20° /14° | 1.2 mm | 6 | |
| 18 Sept. | Patchy rain possible | 20° /15° | 0.9 mm | 6 | |
| 19 Sept. | Heavy rain at times | 22° /16° | 2.4 mm | 6 | |
| 20 Sept. | Moderate or heavy rain shower | 22° /18° | 9.8 mm | 6 | |
| 21 Sept. | Cloudy | 22° /16° | 0 mm | 6 | |
| 22 Sept. | Sunny | 25° /16° | 0 mm | 8 | |
| 23 Sept. | Sunny | 25° /17° | 0 mm | 8 | |
| 24 Sept. | Patchy rain possible | 25° /18° | 0.2 mm | 7 | |
| 25 Sept. | Sunny | 26° /18° | 0 mm | 8 | |
| 26 Sept. | Heavy rain at times | 23° /18° | 12.1 mm | 6 | |
| 27 Sept. | Moderate or heavy rain shower | 23° /16° | 9.2 mm | 6 | |
| 28 Sept. | Cloudy | 21° /13° | 0 mm | 6 | |
| 29 Sept. | Sunny | 23° /14° | 0 mm | 7 | |
| 30 Sept. |  Partly cloudy | 24° /17° | 0.2 mm | 7 | |
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Important Notice
Our weather forecast for Santa Catarina in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Santa Catarina forecast closer to your planned date for the most up-to-date weather information.
Change Month
Santa Catarina in September - FAQ
What are the expected maximum and minimum temperatures in Santa Catarina during September?
During September, expect a variety of temperatures with highs around 23° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Santa Catarina during September?
Moderate rainfall is anticipated in Santa Catarina during September, with a total of 89.4 mm spread over approximately 12 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Santa Catarina during September?
The average wind speed in Santa Catarina during September is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Santa Catarina
Explore the daily rainfall trends and prepare for Santa Catarinas September weather 💧
UV exposure in Santa Catarina during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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