Measurements:
°C
°F
Florianopolis
68°F
SE 6 mph
Feels like: 68°F
Precip: 75%
World Resorts Brazil Florianopolis Weather

Florianopolis Sea Water Temperature

Current Sea Water Temperature:
+66.8°F
Maximum Sea Water Temperature in September: 74.6°F
Minimum Sea Water Temperature in September: 63.0°F
Average water temperature in September: 68.0°F

Sea Water Temperature for the Last 10 Days:

September 28 66.8°F September 23 67.2°F
September 27 68.2°F September 22 67.2°F
September 26 67.8°F September 21 67.4°F
September 25 67.6°F September 20 66.0°F
September 24 67.2°F September 19 66.4°F

When is the Warmest Sea for Florianopolis?

According to our data for the last three years for Florianopolis the highest average sea water temperature was in February, January and March.

Average Water Temperature by Month, °F

Sea Water Temperature in February

Select Year: 2026 2025 2024

The average sea surface temperature in February 2026 for Florianopolis was 84.8°F. The maximum and minimum values were 82.0°F and 86.2°F respectively.

Sea Water Temperature in January

Select Year: 2026 2025 2024

The average sea surface temperature in January 2026 for Florianopolis was 81.8°F. The maximum and minimum values were 78.2°F and 84.2°F respectively.

Sea Water Temperature in March

Select Year: 2026 2025 2024

The average sea surface temperature in March 2026 for Florianopolis was 83.1°F. The maximum and minimum values were 80.4°F and 85.0°F respectively.

Best Time to Visit Florianopolis
The most sunny months:
July 16 days
June 14 days
August 14 days
The most warm months:
February 86.1 °F
January 85.7 °F
March 83.7 °F
Warmest sea temperature:
February 82.2 °F
January 81.7 °F
March 80.9 °F
The most cold months:
July 69.3 °F
June 70.0 °F
August 70.2 °F
The most rainy months:
January 7 days
February 7 days
December 6 days
The most windy months:
November 7 mph
October 7 mph
September 7 mph

Florianopolis on the Weather Map

24 Hours Weather Forecast
Florianopolis
Local time: 19:33
28 sep, monday
2100 68°F
SE
6 mph
29 sep, tuesday
0000 66°F
S
4 mph
0300 68°F
S
5 mph
0600 68°F
S
6 mph
0900 68°F
S
9 mph
1200 70°F
S
5 mph
1500 70°F
W
4 mph
1800 70°F
S
6 mph