15.09
tue
tue
Day

66°F
NW 7 mph
Precip.
15%
15%
Night

57°F
N 6 mph
Precip.
42%
42%
16.09
wed
wed
Day

66°F
W 4 mph
Precip.
13%
13%
Night

59°F
N 4 mph
Precip.
27%
27%
17.09
thu
thu
Day

66°F
SW 5 mph
Precip.
13%
13%
Night

61°F
S 5 mph
Precip.
32%
32%
18.09
fri
fri
Day

64°F
SW 8 mph
Precip.
46%
46%
Night

63°F
SW 5 mph
Precip.
44%
44%
19.09
sat
sat
Day

64°F
SW 9 mph
Precip.
82%
82%
Night

66°F
SW 8 mph
Precip.
51%
51%
20.09
sun
sun
Day

68°F
S 7 mph
Precip.
76%
76%
Night

66°F
SE 2 mph
Precip.
68%
68%
21.09
mon
mon
Day

77°F
W 5 mph
Precip.
17%
17%
Night

66°F
E 1 mph
Precip.
38%
38%
22.09
tue
tue
Day

73°F
SW 9 mph
Precip.
10%
10%
Night

66°F
S 4 mph
Precip.
38%
38%
23.09
wed
wed
Day

79°F
S 4 mph
Precip.
17%
17%
Night

68°F
SE 3 mph
Precip.
43%
43%
24.09
thu
thu
Day

70°F
SE 4 mph
Precip.
28%
28%
Night

68°F
S 8 mph
Precip.
16%
16%
25.09
fri
fri
Day

84°F
S 6 mph
Precip.
14%
14%
Night

70°F
NE 2 mph
Precip.
30%
30%
26.09
sat
sat
Day

79°F
SW 9 mph
Precip.
19%
19%
Night

70°F
N 6 mph
Precip.
32%
32%
27.09
sun
sun
Day

63°F
N 11 mph
Precip.
95%
95%
Night

59°F
N 8 mph
Precip.
55%
55%
28.09
mon
mon
Day

61°F
W 6 mph
Precip.
65%
65%
Night

63°F
W 6 mph
Precip.
77%
77%
sea water
temperature
temperature
| Florianopolis |
monthly
weather
weather
| Florianopolis |
current
weather
weather
| Florianopolis |
7 days
forecast
forecast
| Florianopolis |
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 64.6°F. The highest and lowest sea temperatures during the month were 67.1°F and 63.0°F.
Air temperature in Florianopolis, °F
Precipitation total in Florianopolis, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Florianopolis
Florianopolis on a weather map
Places in Brazil:
Name
°F
24 Hours Forecast
Florianopolis
Local time: 12:51
September 15, tuesday
1500

64°F
NW
8 mph
8 mph
1800

61°F
N
7 mph
7 mph
2100

59°F
N
6 mph
6 mph
September 16, wednesday
0000

57°F
N
6 mph
6 mph
0300

57°F
N
4 mph
4 mph
0600

55°F
NE
1 mph
1 mph
0900

61°F
NE
1 mph
1 mph
1200

66°F
W
4 mph
4 mph




























