24.12
wed
wed
Day
75°F
W 12 mph
Precip.
0%
0%
Night
70°F
NW 11 mph
Precip.
0%
0%
25.12
thu
thu
Day
75°F
W 11 mph
Precip.
0%
0%
Night
70°F
NW 9 mph
Precip.
85%
85%
26.12
fri
fri
Day
77°F
NW 9 mph
Precip.
80%
80%
Night
70°F
NW 5 mph
Precip.
0%
0%
27.12
sat
sat
Day
77°F
SW 2 mph
Precip.
78%
78%
Night
70°F
NE 2 mph
Precip.
0%
0%
28.12
sun
sun
Day
77°F
W 2 mph
Precip.
24%
24%
Night
72°F
NW 4 mph
Precip.
27%
27%
29.12
mon
mon
Day
75°F
NW 4 mph
Precip.
100%
100%
Night
72°F
SE 1 mph
Precip.
41%
41%
30.12
tue
tue
Day
75°F
S 6 mph
Precip.
100%
100%
Night
72°F
SW 6 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 78.4°F. The highest and lowest sea temperatures during the month were 79.3°F and 77.7°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 75.0°F. The highest and lowest sea temperatures during the month were 75.7°F and 73.6°F.
Air temperature in Kauai, °F
Precipitation total in Kauai, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Kauai
Kauai on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Kauai
Local time: 00:07
December 24, wednesday
0300
70°F
W
12 mph
12 mph
0600
70°F
NW
12 mph
12 mph
0900
73°F
W
12 mph
12 mph
1200
75°F
W
12 mph
12 mph
1500
75°F
W
13 mph
13 mph
1800
72°F
NW
11 mph
11 mph
2100
70°F
NW
11 mph
11 mph
December 25, thursday
0000
70°F
NW
11 mph
11 mph
