Measurements:
°C
°F
CURRENT WEATHER
08:28
Kauai
78°F
W 11 mph
Feels like: 82°F
Precip: 21%
World Resorts USA Kauai Weather

7 Day Weather Forecast

07.15
wed
DAY
82°F
W 12 mph
precip
38%
NIGHT
76°F
NW 9 mph
precip
26%
07.16
thu
DAY
82°F
W 13 mph
precip
31%
NIGHT
78°F
W 12 mph
precip
47%
07.17
fri
DAY
82°F
W 13 mph
precip
23%
NIGHT
76°F
W 11 mph
precip
24%
07.18
sat
DAY
82°F
W 13 mph
precip
22%
NIGHT
76°F
W 11 mph
precip
32%
07.19
sun
DAY
80°F
W 11 mph
precip
14%
NIGHT
76°F
W 9 mph
precip
29%
07.20
mon
DAY
80°F
W 11 mph
precip
12%
NIGHT
76°F
W 9 mph
precip
32%
07.21
tue
DAY
78°F
W 11 mph
precip
37%
NIGHT
76°F
W 9 mph
precip
32%

Kauai Sea Water Temperature in July, °F

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Kauai was 25.9°F. The maximum and minimum values were 25.5°F and 26.3°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 76.2 °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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