Measurements:
°C
°F
Kauai
76°F
E 1 mph
Feels like: 80°F
Precip: 0%
World Resorts USA Kauai Weather

7 Day Weather Forecast

01.09
fri
DAY
80°F
SW 4 mph
precip
67%
NIGHT
74°F
S 1 mph
precip
86%
01.10
sat
DAY
80°F
SE 4 mph
precip
100%
NIGHT
74°F
E 3 mph
precip
67%
01.11
sun
DAY
80°F
SE 3 mph
precip
63%
NIGHT
74°F
NE 9 mph
precip
0%
01.12
mon
DAY
74°F
S 14 mph
precip
0%
NIGHT
68°F
S 6 mph
precip
0%
01.13
tue
DAY
72°F
W 8 mph
precip
0%
NIGHT
68°F
N 6 mph
precip
0%
01.14
wed
DAY
76°F
N 7 mph
precip
100%
NIGHT
72°F
E 14 mph
precip
100%
01.15
thu
DAY
74°F
SE 10 mph
precip
0%
NIGHT
68°F
SW 8 mph
precip
100%

Kauai Sea Water Temperature in January, °F

Select Year: 2025 2024 2023

The average sea surface temperature in January 2025 for Kauai was 23.9°F. The maximum and minimum values were 23.1°F and 24.3°F respectively.

Kauai on the Weather Map

Best Time to Visit Kauai
The most sunny months:
January 6 days
December 5 days
February 4 days
The most warm months:
September 83.7 °F
August 83.4 °F
July 82.5 °F
Warmest sea temperature:
September 83.9 °F
October 83.8 °F
August 82.9 °F
The most cold months:
February 76.6 °F
March 76.9 °F
January 77.5 °F
The most rainy months:
March 2 days
January 2 days
November 1 day
The most windy months:
July 11 mph
June 11 mph
May 11 mph