17.05
sun
sun
Day
70°F
S 1 mph
Precip.
64%
64%
Night
64°F
N 9 mph
Precip.
100%
100%
18.05
mon
mon
Day
63°F
N 6 mph
Precip.
100%
100%
Night
59°F
N 6 mph
Precip.
100%
100%
19.05
tue
tue
Day
66°F
N 4 mph
Precip.
0%
0%
Night
61°F
N 3 mph
Precip.
88%
88%
20.05
wed
wed
Day
70°F
SE 4 mph
Precip.
0%
0%
Night
57°F
N 4 mph
Precip.
0%
0%
21.05
thu
thu
Day
64°F
NW 5 mph
Precip.
0%
0%
Night
55°F
N 7 mph
Precip.
0%
0%
22.05
fri
fri
Day
63°F
NW 4 mph
Precip.
0%
0%
Night
57°F
NE 6 mph
Precip.
100%
100%
23.05
sat
sat
Day
59°F
N 6 mph
Precip.
100%
100%
Night
61°F
NW 6 mph
Precip.
100%
100%
24.05
sun
sun
Day
68°F
NW 2 mph
Precip.
100%
100%
Night
63°F
NE 3 mph
Precip.
0%
0%
25.05
mon
mon
Day
72°F
NW 3 mph
Precip.
0%
0%
Night
59°F
N 7 mph
Precip.
0%
0%
26.05
tue
tue
Day
68°F
N 8 mph
Precip.
100%
100%
Night
63°F
NE 5 mph
Precip.
72%
72%
27.05
wed
wed
Day
72°F
SW 3 mph
Precip.
73%
73%
Night
63°F
SE 3 mph
Precip.
100%
100%
28.05
thu
thu
Day
70°F
NW 2 mph
Precip.
88%
88%
Night
64°F
N 6 mph
Precip.
100%
100%
29.05
fri
fri
Day
63°F
N 3 mph
Precip.
0%
0%
Night
61°F
NE 2 mph
Precip.
100%
100%
30.05
sat
sat
Day
63°F
SE 2 mph
Precip.
100%
100%
Night
64°F
S 5 mph
Precip.
100%
100%
Sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 72.1°F. The highest and lowest sea temperatures during the month were 75.2°F and 69.3°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: 15:05
May 17, sunday
1800
66°F
W
4 mph
4 mph
2100
66°F
NW
8 mph
8 mph
May 18, monday
0000
64°F
N
9 mph
9 mph
0300
64°F
NE
4 mph
4 mph
0600
64°F
NE
4 mph
4 mph
0900
64°F
N
5 mph
5 mph
1200
63°F
N
6 mph
6 mph
1500
63°F
NE
5 mph
5 mph
