Measurements:
°C
°F
CURRENT WEATHER
11:35
Kauai
82°F
W 15 mph
Feels like: 86°F
Precip: 20%
World Resorts USA Kauai Weather

7 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%

Kauai Sea Water Temperature in August, °F

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Kauai was 26.9°F. The maximum and minimum values were 26.3°F and 27.2°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
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