15.09
tue
tue
Day
66°F
SW 1 mph
Precip.
20%
20%
Night
61°F
NE 2 mph
Precip.
33%
33%
16.09
wed
wed
Day
63°F
N 4 mph
Precip.
49%
49%
Night
59°F
NW 2 mph
Precip.
43%
43%
17.09
thu
thu
Day
66°F
NW 4 mph
Precip.
21%
21%
Night
63°F
W 1 mph
Precip.
48%
48%
18.09
fri
fri
Day
70°F
W 3 mph
Precip.
38%
38%
Night
66°F
W 2 mph
Precip.
70%
70%
19.09
sat
sat
Day
66°F
SE 1 mph
Precip.
79%
79%
Night
64°F
W 1 mph
Precip.
83%
83%
20.09
sun
sun
Day
77°F
SW 2 mph
Precip.
19%
19%
Night
66°F
NE 2 mph
Precip.
78%
78%
21.09
mon
mon
Day
84°F
SW 2 mph
Precip.
3%
3%
Night
68°F
SE 2 mph
Precip.
43%
43%
22.09
tue
tue
Day
79°F
NW 6 mph
Precip.
18%
18%
Night
68°F
N 2 mph
Precip.
51%
51%
23.09
wed
wed
Day
68°F
N 3 mph
Precip.
47%
47%
Night
64°F
N 1 mph
Precip.
43%
43%
24.09
thu
thu
Day
79°F
W 4 mph
Precip.
11%
11%
Night
64°F
E 2 mph
Precip.
43%
43%
25.09
fri
fri
Day
81°F
W 6 mph
Precip.
6%
6%
Night
66°F
NE 1 mph
Precip.
43%
43%
26.09
sat
sat
Day
79°F
W 4 mph
Precip.
16%
16%
Night
68°F
SE 1 mph
Precip.
42%
42%
27.09
sun
sun
Day
77°F
NW 6 mph
Precip.
18%
18%
Night
70°F
NE 4 mph
Precip.
78%
78%
28.09
mon
mon
Day
88°F
NW 4 mph
Precip.
13%
13%
Night
68°F
SE 2 mph
Precip.
54%
54%
sea water
temperature
temperature
| Guaratuba |
monthly
weather
weather
| Guaratuba |
current
weather
weather
| Guaratuba |
7 days
forecast
forecast
| Guaratuba |
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 67.6°F. The highest and lowest sea temperatures during the month were 69.1°F and 65.3°F.
Air temperature in Guaratuba, °F
Precipitation total in Guaratuba, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Guaratuba
Guaratuba on a weather map
Places in Brazil:
Name
°F
24 Hours Forecast
Guaratuba
Local time: 05:48
September 15, tuesday
0600
55°F
E
2 mph
2 mph
0900
63°F
S
1 mph
1 mph
1200
66°F
SW
1 mph
1 mph
1500
70°F
W
4 mph
4 mph
1800
61°F
W
4 mph
4 mph
2100
61°F
NW
2 mph
2 mph
September 16, wednesday
0000
61°F
NE
2 mph
2 mph
0300
59°F
NE
2 mph
2 mph
