Measurements:
°C
°F
Itajai
66°F
W 4 mph
Feels like: 66°F
Precip: 0%
World Resorts Brazil Itajai Weather

7 Day Weather Forecast

12.17
wed
DAY
78°F
W 9 mph
precip
0%
NIGHT
66°F
W 2 mph
precip
60%
12.18
thu
DAY
80°F
SW 10 mph
precip
0%
NIGHT
70°F
S 4 mph
precip
79%
12.19
fri
DAY
84°F
SW 9 mph
precip
0%
NIGHT
72°F
SW 4 mph
precip
86%
12.20
sat
DAY
82°F
SW 7 mph
precip
84%
NIGHT
76°F
SW 9 mph
precip
100%
12.21
sun
DAY
84°F
SW 9 mph
precip
63%
NIGHT
78°F
SW 7 mph
precip
100%
12.22
mon
DAY
88°F
SW 7 mph
precip
100%
NIGHT
78°F
S 2 mph
precip
100%
12.23
tue
DAY
90°F
SW 2 mph
precip
100%
NIGHT
76°F
SE 3 mph
precip
53%

Itajai Sea Water Temperature in December, °F

Select Year: 2025 2024 2023

The average sea surface temperature in December 2025 for Itajai was 23.7°F. The maximum and minimum values were 22.8°F and 24.5°F respectively.

Itajai on the Weather Map

Best Time to Visit Itajai
The most sunny months:
July 13 days
May 10 days
June 9 days
The most warm months:
February 84.4 °F
January 83.6 °F
March 83.0 °F
Warmest sea temperature:
February 83.8 °F
January 82.7 °F
March 82.7 °F
The most cold months:
July 67.5 °F
August 68.7 °F
June 69.5 °F
The most rainy months:
January 8 days
October 5 days
November 5 days
The most windy months:
December 7 mph
November 6 mph
October 6 mph