Measurements:
°C
°F
Kauai
78°F
SW 17 mph
Feels like: 82°F
Precip: 100%
World Resorts USA Kauai Weather

Kauai Sea Water Temperature

Current Sea Water Temperature:
+77.0°F
Maximum Sea Water Temperature in April: 80.8°F
Minimum Sea Water Temperature in April: 77.0°F
Average water temperature in April: 78.9°F

Sea Water Temperature for the Last 10 Days:

April 11 77.0°F April 06 77.8°F
April 10 77.4°F April 05 78.2°F
April 09 77.2°F April 04 78.4°F
April 08 77.0°F April 03 78.6°F
April 07 77.2°F April 02 78.6°F

When is the Warmest Sea for Kauai?

According to our data for the last three years for Kauai the highest average sea water temperature was in September, October and August.

Average Water Temperature by Month, °F

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0
14
28
42
56
70
84
98
112
80.5
82.5
83.6
83.7
83.1
82.3
81.6
80.2
78.9
78.1
78.5
79.5

Sea Water Temperature in September

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
78
80
82
84
86
88
90

The average sea surface temperature in September 2024 for Kauai was 82.6°F. The maximum and minimum values were 82.4°F and 83.0°F respectively.

Sea Water Temperature in October

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
78
80
82
84
86
88
90

The average sea surface temperature in October 2024 for Kauai was 82.4°F. The maximum and minimum values were 82.0°F and 82.8°F respectively.

Sea Water Temperature in August

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
77
79
81
83
85
87
89

The average sea surface temperature in August 2024 for Kauai was 81.8°F. The maximum and minimum values were 81.0°F and 82.4°F respectively.

Best Time to Visit Kauai
The most sunny months:
January 6 days
December 5 days
February 4 days
The most warm months:
September 83.5 °F
August 83.0 °F
July 82.3 °F
Warmest sea temperature:
September 83.7 °F
October 83.6 °F
August 83.0 °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 12 mph
August 11 mph
June 11 mph

Kauai on the Weather Map

USA Resorts:
NAME
Boston +38
Chicago +38
Hawaii +78
Honolulu +78
Houston +82
Las Vegas +96
Los Angeles +80
Miami +76
New York +44
Orlando +76
San Diego +68
San Francisco +54
Sarasota +72
Tampa +74
Washington +46
24 Hours Weather Forecast
Kauai
Local time: 15:31
11 apr, friday
1800 76°F
SW
16 mph
2100 76°F
SW
15 mph
12 apr, saturday
0000 76°F
W
14 mph
0300 76°F
W
13 mph
0600 76°F
W
13 mph
0900 78°F
W
12 mph
1200 78°F
W
14 mph
1500 78°F
W
15 mph