Measurements:
°C
°F
CURRENT WEATHER
17:46
Florianopolis
64°F
SW 5 mph
Feels like: 64°F
Precip: 12%
World Resorts Brazil Florianopolis Weather

7 Day Weather Forecast

09.08
tue
DAY
70°F
S 6 mph
precip
4%
NIGHT
60°F
SE 2 mph
precip
15%
09.09
wed
DAY
74°F
S 4 mph
precip
7%
NIGHT
66°F
NE 2 mph
precip
32%
09.10
thu
DAY
68°F
S 4 mph
precip
76%
NIGHT
66°F
SE 1 mph
precip
52%
09.11
fri
DAY
70°F
S 7 mph
precip
43%
NIGHT
68°F
SE 4 mph
precip
38%
09.12
sat
DAY
70°F
N 11 mph
precip
13%
NIGHT
60°F
N 6 mph
precip
24%
09.13
sun
DAY
66°F
N 10 mph
precip
15%
NIGHT
60°F
W 6 mph
precip
69%
09.14
mon
DAY
62°F
SW 14 mph
precip
83%
NIGHT
62°F
W 7 mph
precip
87%

Florianopolis Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Florianopolis was 19.1°F. The maximum and minimum values were 17.8°F and 20.5°F respectively.

Florianopolis on the Weather Map

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
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