30.12
tue
tue
Day

75°F
W 11 mph
Precip.
62%
62%
Night

72°F
W 9 mph
Precip.
61%
61%
31.12
wed
wed
Day

75°F
W 11 mph
Precip.
89%
89%
Night

72°F
W 10 mph
Precip.
100%
100%
01.01
thu
thu
Day

75°F
W 11 mph
Precip.
100%
100%
Night

72°F
W 13 mph
Precip.
100%
100%
02.01
fri
fri
Day

75°F
W 14 mph
Precip.
100%
100%
Night

70°F
W 14 mph
Precip.
100%
100%
03.01
sat
sat
Day

73°F
W 14 mph
Precip.
100%
100%
Night

70°F
W 14 mph
Precip.
100%
100%
04.01
sun
sun
Day

73°F
W 14 mph
Precip.
100%
100%
Night

72°F
W 14 mph
Precip.
100%
100%
05.01
mon
mon
Day

72°F
NW 13 mph
Precip.
80%
80%
Night

70°F
NW 12 mph
Precip.
21%
21%
06.01
tue
tue
Day

73°F
W 10 mph
Precip.
0%
0%
Night

68°F
W 7 mph
Precip.
25%
25%
07.01
wed
wed
Day

73°F
W 6 mph
Precip.
74%
74%
Night

68°F
NE 2 mph
Precip.
0%
0%
08.01
thu
thu
Day

73°F
SE 3 mph
Precip.
0%
0%
Night

70°F
E 6 mph
Precip.
0%
0%
09.01
fri
fri
Day

68°F
NE 11 mph
Precip.
100%
100%
Night

63°F
NW 5 mph
Precip.
100%
100%
10.01
sat
sat
Day

68°F
S 10 mph
Precip.
100%
100%
Night

64°F
SW 4 mph
Precip.
0%
0%
11.01
sun
sun
Day

70°F
W 8 mph
Precip.
0%
0%
Night

64°F
NW 6 mph
Precip.
0%
0%
12.01
mon
mon
Day

72°F
NE 4 mph
Precip.
0%
0%
Night

66°F
E 6 mph
Precip.
0%
0%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 78.2°F. The highest and lowest sea temperatures during the month were 79.3°F and 77.5°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: 12:55
December 30, tuesday
1500

75°F
W
11 mph
11 mph
1800

73°F
W
9 mph
9 mph
2100

72°F
W
9 mph
9 mph
December 31, wednesday
0000

72°F
W
9 mph
9 mph
0300

72°F
W
9 mph
9 mph
0600

70°F
W
10 mph
10 mph
0900

73°F
W
9 mph
9 mph
1200

75°F
W
11 mph
11 mph




























