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Sea Temperature in Florianopolis in September
Complete information on the sea temperature range in the Atlantic Ocean in Florianopolis in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Florianopolis. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Water Temperature Range in Florianopolis in September
16°C
MINIMUN
18.5°C
AVERAGE
21°C
MAXIMUM
Historical Data of Water Temperature in September in Florianopolis
Water Temperature Chart for Atlantic Ocean in Florianopolis in September
Sea Temperature Table in Florianopolis in September Over the Past Years
Day | 2024 | 2023 | 2022 | Average |
---|---|---|---|---|
Sep 1 | 18°C | 18°C | 19°C | 18.0°C |
Sep 2 | 19°C | 18°C | 19°C | 18.5°C |
Sep 3 | 18°C | 18°C | 20°C | 18.5°C |
Sep 4 | 18°C | 18°C | 20°C | 18.5°C |
Sep 5 | 19°C | 18°C | 20°C | 18.8°C |
Sep 6 | 19°C | 18°C | 20°C | 19.0°C |
Sep 7 | 18°C | 18°C | 19°C | 18.5°C |
Sep 8 | 19°C | 18°C | 19°C | 18.8°C |
Sep 9 | 18°C | 18°C | 19°C | 18.3°C |
Sep 10 | 19°C | 18°C | 20°C | 19.0°C |
Sep 11 | 19°C | 18°C | 20°C | 18.8°C |
Sep 12 | 19°C | 18°C | 20°C | 18.8°C |
Sep 13 | 20°C | 18°C | 20°C | 19.0°C |
Sep 14 | 20°C | 19°C | 20°C | 19.3°C |
Sep 15 | 19°C | 19°C | 20°C | 19.0°C |
Sep 16 | 19°C | 19°C | 20°C | 19.3°C |
Sep 17 | 19°C | 19°C | 20°C | 19.3°C |
Sep 18 | 20°C | 19°C | 20°C | 19.3°C |
Sep 19 | 20°C | 20°C | 20°C | 19.5°C |
Sep 20 | 19°C | 20°C | 20°C | 19.3°C |
Sep 21 | 21°C | 20°C | 20°C | 19.8°C |
Sep 22 | 20°C | 19°C | 20°C | 19.3°C |
Sep 23 | 20°C | 20°C | 20°C | 19.5°C |
Sep 24 | 20°C | 19°C | 20°C | 19.3°C |
Sep 25 | 20°C | 19°C | 20°C | 19.5°C |
Sep 26 | 20°C | 19°C | 20°C | 19.3°C |
Sep 27 | 20°C | 19°C | 17°C | 18.8°C |
Sep 28 | 21°C | 19°C | 20°C | 19.8°C |
Sep 29 | 21°C | 19°C | 18°C | 19.5°C |
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
Florianopolis Climate and Swimming Opportunities in September
21°C
Average Day Air Temperature
15°C
Average Night Air Temperature
138 mm
Precipitation Amount per Month
14 days
Number of Rainy Days
12 hrs
Daylight
per Day
4 hrs
Sunshine
per Day
12 km/h
Average Wind Speed
83%
Average
humidity
Florianopolis lies within the Santa Catarina in Brazil. The average daytime temperature in Florianopolis in September is 21°C (69°F), while the nighttime average is 15°C (58°F). There are typically 14 rainy days during the month, with a total precipitation of 138 mm (5.4 inches). The daylight duration in September in Florianopolis is 12 hours, with an average of 4 hours of sunshine per day. The average wind speed in September is 12 km/h (7 mph), and the humidity level is around 83%.
The water temperature in Florianopolis in September ranges from 18°C to 19°C (64°F to 66°F). At the beginning of the month, the average temperature is around 19°C (66°F), shifting to 19°C (66°F) by mid-September and reaching 19°C (66°F) in the last ten days. Overall, the average sea temperature in Florianopolis for September is 19°C (66°F). Very comfortable swimming conditions. The water is fresh but not too cold, and the air temperature is pleasant.
Sea Temperature in September in Nearby Cities
Frequently Asked Questions About Water Temperatures in September in Florianopolis
What is the sea temperature in Florianopolis in September?
The water temperature in the Atlantic Ocean in Florianopolis in September ranges from 18°C to 19°C (64°F to 66°F).
Is it possible to swim in the Atlantic Ocean in Florianopolis in September?
The average sea temperature in Florianopolis in September is 19°C (66°F), and the air temperature is 21°C (69°F), so very comfortable swimming conditions. The water is fresh but not too cold, and the air temperature is pleasant.