05.08
wed
wed
Day
79°F
W 12 mph
Precip.
21%
21%
Night
75°F
W 11 mph
Precip.
33%
33%
06.08
thu
thu
Day
79°F
W 12 mph
Precip.
21%
21%
Night
75°F
W 9 mph
Precip.
31%
31%
07.08
fri
fri
Day
79°F
W 12 mph
Precip.
21%
21%
Night
75°F
W 11 mph
Precip.
17%
17%
08.08
sat
sat
Day
79°F
W 13 mph
Precip.
17%
17%
Night
75°F
W 12 mph
Precip.
32%
32%
09.08
sun
sun
Day
79°F
W 12 mph
Precip.
19%
19%
Night
75°F
W 11 mph
Precip.
32%
32%
10.08
mon
mon
Day
79°F
W 11 mph
Precip.
15%
15%
Night
75°F
W 8 mph
Precip.
14%
14%
11.08
tue
tue
Day
81°F
W 11 mph
Precip.
12%
12%
Night
75°F
W 10 mph
Precip.
31%
31%
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 79.1°F. The highest and lowest sea temperatures during the month were 81.3°F and 76.1°F.
Air temperature in Kauai, °F
Precipitation total in Kauai, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Kauai
Kauai on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Kauai
Local time: 09:00
August 05, wednesday
1200
79°F
W
12 mph
12 mph
1500
79°F
W
11 mph
11 mph
1800
77°F
W
10 mph
10 mph
2100
75°F
W
9 mph
9 mph
August 06, thursday
0000
75°F
W
11 mph
11 mph
0300
73°F
W
9 mph
9 mph
0600
73°F
W
8 mph
8 mph
0900
77°F
W
10 mph
10 mph
