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Weather in Florianópolis for September 2026

Your guide to Florianópolis weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Florianópolis at the beginning of September is 20.1 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 22 °C by the end of September.

    • Rain 🌧️

  • Florianópolis experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 89.4 mm.

Average dry days
20
Dry days
Average rainy days
10
Rainy days
Average snowy days
0
Snow days
Average temperatures
23°/16°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
82 %
Avg humidity

Florianópolis Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Cloudy
22°
2
Patchy rain possible
20°
3
Sunny
23°
4
Sunny
23°
5
Heavy rain at times
17°
6
Overcast
16°
7
Sunny
20°
8
Sunny
22°
9
Sunny
22°
10
Sunny
23°
11
Sunny
26°
12
Cloudy
22°
13
Moderate rain at times
22°
14
Moderate or heavy rain shower
22°
15
Moderate or heavy rain shower
19°
16
Patchy rain possible
20°
17
Patchy rain possible
21°
18
Patchy rain possible
22°
19
Heavy rain at times
23°
20
Moderate or heavy rain shower
24°
21
Cloudy
23°
22
Sunny
22°
23
Sunny
23°
24
Patchy rain possible
23°
25
Sunny
22°
26
Heavy rain at times
21°
27
Moderate or heavy rain shower
22°
28
Cloudy
20°
29
Sunny
23°
30
Partly cloudy
23°

Temperatures trend during September in Florianópolis

See the weather trend as well as the moving average line

September weather in Florianópolis day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Cloudy
Cloudy
 22° /16° 3.5 mm 6
2 Sept. Patchy rain possible
Patchy rain possible
 20° /15° 1.5 mm 6
3 Sept. Sunny
Sunny
 23° /15° 0.2 mm 7
4 Sept. Sunny
Sunny
 23° /15° 0.4 mm 7
5 Sept. Heavy rain at times
Heavy rain at times
 17° /13° 6.5 mm 5
6 Sept. Overcast
Overcast
 16° /11° 2.2 mm 5
7 Sept. Sunny
Sunny
 20° /13° 0.2 mm 7
8 Sept. Sunny
Sunny
 22° /16° 2.6 mm 7
9 Sept. Sunny
Sunny
 22° /15° 3 mm 7
10 Sept. Sunny
Sunny
 23° /15° 0 mm 7
11 Sept. Sunny
Sunny
 26° /15° 0 mm 8
12 Sept. Cloudy
Cloudy
 22° /15° 0 mm 6
13 Sept. Moderate rain at times
Moderate rain at times
 22° /13° 0.6 mm 6
14 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 22° /14° 6.5 mm 7
15 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 19° /15° 19 mm 6
16 Sept. Patchy rain possible
Patchy rain possible
 20° /14° 3.9 mm 6
17 Sept. Patchy rain possible
Patchy rain possible
 21° /15° 0.8 mm 6
18 Sept. Patchy rain possible
Patchy rain possible
 22° /16° 0.8 mm 6
19 Sept. Heavy rain at times
Heavy rain at times
 23° /16° 1.5 mm 6
20 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 24° /17° 5.1 mm 7
21 Sept. Cloudy
Cloudy
 23° /16° 4.3 mm 6
22 Sept. Sunny
Sunny
 22° /15° 18.5 mm 7
23 Sept. Sunny
Sunny
 23° /14° 0 mm 8
24 Sept. Patchy rain possible
Patchy rain possible
 23° /16° 1 mm 7
25 Sept. Sunny
Sunny
 22° /16° 0.8 mm 7
26 Sept. Heavy rain at times
Heavy rain at times
 21° /16° 6.7 mm 6
27 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 22° /15° 4.9 mm 6
28 Sept. Cloudy
Cloudy
 20° /14° 1.1 mm 6
29 Sept. Sunny
Sunny
 23° /14° 0.1 mm 7
30 Sept. Partly cloudy
Partly cloudy
 23° /16° 2.4 mm 7
Next
Important Notice
Our weather forecast for Florianópolis 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 Florianópolis forecast closer to your planned date for the most up-to-date weather information.
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Florianópolis in September - FAQ

What are the expected maximum and minimum temperatures in Florianópolis 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 Florianópolis during September?
Moderate rainfall is anticipated in Florianópolis during September, with a total of 89.4 mm spread over approximately 10 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Florianópolis during September?
The average wind speed in Florianópolis during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Florianópolis

Explore the daily rainfall trends and prepare for Florianópoliss September weather 💧

UV exposure in Florianópolis during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Florianópolis?

Get accurate weather forecasts for Florianópolis, located at latitude -27.597 and longitude -48.549. Stay updated with localized weather information tailored for Florianópolis.

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