18.12
thu
thu
Day
79°F
SW 9 mph
Precip.
0%
0%
Night
70°F
S 4 mph
Precip.
89%
89%
19.12
fri
fri
Day
82°F
SW 9 mph
Precip.
0%
0%
Night
72°F
SW 6 mph
Precip.
100%
100%
20.12
sat
sat
Day
79°F
SW 10 mph
Precip.
61%
61%
Night
73°F
SW 8 mph
Precip.
100%
100%
21.12
sun
sun
Day
82°F
SW 8 mph
Precip.
0%
0%
Night
73°F
SW 7 mph
Precip.
100%
100%
22.12
mon
mon
Day
81°F
SW 6 mph
Precip.
43%
43%
Night
73°F
SW 6 mph
Precip.
100%
100%
23.12
tue
tue
Day
86°F
SW 7 mph
Precip.
0%
0%
Night
75°F
SE 3 mph
Precip.
0%
0%
24.12
wed
wed
Day
90°F
W 6 mph
Precip.
0%
0%
Night
75°F
N 3 mph
Precip.
100%
100%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 74.7°F. The highest and lowest sea temperatures during the month were 76.1°F and 73.0°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 78.7°F. The highest and lowest sea temperatures during the month were 81.3°F and 77.2°F.
Air temperature in Itajai, °F
Precipitation total in Itajai, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Itajai
Itajai on a weather map
Places in Brazil:
Name
°F
24 Hours Forecast
Itajai
Local time: 22:58
December 19, friday
0000
70°F
S
4 mph
4 mph
0300
70°F
SE
2 mph
2 mph
0600
72°F
E
3 mph
3 mph
0900
79°F
S
4 mph
4 mph
1200
82°F
SW
9 mph
9 mph
1500
79°F
SW
11 mph
11 mph
1800
73°F
SW
9 mph
9 mph
2100
72°F
SW
7 mph
7 mph
