Measurements:
°C
°F
CURRENT WEATHER
11:45
Kauai
82°F
W 15 mph
Feels like: 86°F
Precip: 20%
World Resorts USA Kauai Weather

14 Day Weather Forecast

08.25
tue
DAY
82°F
W 15 mph
precip
20%
NIGHT
78°F
W 10 mph
precip
22%
08.26
wed
DAY
82°F
W 13 mph
precip
20%
NIGHT
76°F
W 11 mph
precip
27%
08.27
thu
DAY
80°F
W 11 mph
precip
23%
NIGHT
76°F
W 11 mph
precip
36%
08.28
fri
DAY
82°F
W 11 mph
precip
18%
NIGHT
76°F
W 12 mph
precip
32%
08.29
sat
DAY
78°F
W 14 mph
precip
20%
NIGHT
76°F
W 12 mph
precip
36%
08.30
sun
DAY
80°F
W 12 mph
precip
9%
NIGHT
76°F
W 11 mph
precip
37%
08.31
mon
DAY
80°F
W 12 mph
precip
27%
NIGHT
76°F
W 11 mph
precip
43%
09.01
tue
DAY
80°F
W 13 mph
precip
49%
NIGHT
78°F
W 12 mph
precip
40%
09.02
wed
DAY
80°F
W 13 mph
precip
25%
NIGHT
76°F
W 11 mph
precip
30%
09.03
thu
DAY
80°F
W 14 mph
precip
40%
NIGHT
76°F
W 11 mph
precip
21%
09.04
fri
DAY
80°F
W 11 mph
precip
13%
NIGHT
76°F
W 11 mph
precip
50%
09.05
sat
DAY
80°F
W 12 mph
precip
22%
NIGHT
76°F
W 10 mph
precip
27%
09.06
sun
DAY
80°F
W 12 mph
precip
20%
NIGHT
76°F
W 9 mph
precip
19%
09.07
mon
DAY
82°F
W 10 mph
precip
5%
NIGHT
78°F
W 9 mph
precip
7%

Kauai Sea Water Temperature in August, °F

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Kauai was 83.8°F. The maximum and minimum values were 82.6°F and 84.4°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
October 82.4 °F
Warmest sea temperature:
September 83.9 °F
October 83.8 °F
August 83.0 °F
The most cold months:
February 76.2 °F
March 76.9 °F
January 77.4 °F
The most rainy months:
March 2 days
January 2 days
February 2 days
The most windy months:
July 11 mph
June 11 mph
May 11 mph
more details
USA Resorts:
NAME
F°
Boston +80
Chicago +80
Hawaii +84
Houston +106
Las Vegas +116
Los Angeles +96
Maui +70
Miami +92
Myrtle Beach +84
New York +82
San Diego +96
San Francisco +64
Santa Monica +86
Sarasota +92
Washington +84
all resorts
24 Hours Weather Forecast
Kauai
Local time: 11:45
25 aug, tuesday
1200 82°F
W
15 mph
1500 84°F
W
12 mph
1800 80°F
W
12 mph
2100 78°F
W
9 mph
26 aug, wednesday
0000 78°F
W
10 mph
0300 76°F
W
11 mph
0600 76°F
W
11 mph
0900 80°F
W
13 mph