Measurements:
°C
°F
Kauai
78°F
W 6 mph
Feels like: 80°F
Precip: 88%
World Resorts USA Kauai Weather

Kauai Sea Water Temperature

Current Sea Water Temperature:
+80.6°F
Maximum Sea Water Temperature in November: 85.0°F
Minimum Sea Water Temperature in November: 80.4°F
Average water temperature in November: 82.7°F

Sea Water Temperature for the Last 10 Days:

November 21 80.6°F November 16 80.8°F
November 20 80.4°F November 15 81.0°F
November 19 80.4°F November 08 81.6°F
November 18 80.4°F November 07 81.8°F
November 17 80.8°F November 06 82.0°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

Sea Water Temperature in September

Select Year: 2024 2023 2022

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

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

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 2 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 76.0 °F
March 76.5 °F
January 77.5 °F
The most rainy months:
January 3 days
March 2 days
May 1 day
The most windy months:
July 12 mph
February 11 mph
August 11 mph

Kauai on the Weather Map

USA Resorts:
NAME
Boston +48
Chicago +34
Hawaii +78
Honolulu +78
Houston +74
Las Vegas +60
Los Angeles +74
Maui +72
Miami +86
New York +48
San Diego +64
San Francisco +58
Sarasota +76
Tampa +74
Washington +52
24 Hours Weather Forecast
Kauai
Local time: 10:24
21 nov, thursday
1200 80°F
W
9 mph
1500 78°F
W
11 mph
1800 76°F
W
9 mph
2100 74°F
W
7 mph
22 nov, friday
0000 72°F
W
7 mph
0300 72°F
NW
6 mph
0600 70°F
NW
5 mph
0900 76°F
NW
6 mph