Current sea water temperature:
+78.4°F
| Minimum sea water temperature in June: | 79.9°F |
| Maximum sea water temperature in June: | 75.2°F |
| Average sea water temperature in June: | 78.0°F |
| more information | |
14 days
forecast
forecast
| Kauai |
monthly
weather
weather
| Kauai |
Sea water temperature for the last 10 days:
| June 25 | 78.4°F | June 20 | 78.3°F |
| June 24 | 78.8°F | June 19 | 78.1°F |
| June 23 | 78.6°F | June 18 | 77.9°F |
| June 22 | 78.6°F | June 17 | 78.1°F |
| June 21 | 78.6°F | June 16 | 78.1°F |
Monthly sea water temperature, °F
When is the warmest sea in Kauai?
Based on the data about daily sea water temperature for the last three years the warmest sea in Kauai was noticed in September, October and August.
Monthly Sea Temperatures in Kauai, °F
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 81.5°F. The highest and lowest sea temperatures during the month were 81.9°F and 81.1°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 81.3°F. The highest and lowest sea temperatures during the month were 81.9°F and 80.4°F.
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.
current
weather
weather
| Kauai |
weather in
June
June
| Kauai |
Best time for vacation in Kauai
Kauai on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Kauai
Local time: 21:12
June 26, friday
0000
73°F
W
12 mph
12 mph
0300
73°F
W
11 mph
11 mph
0600
72°F
W
10 mph
10 mph
0900
77°F
W
12 mph
12 mph
1200
79°F
W
12 mph
12 mph
1500
79°F
W
14 mph
14 mph
1800
77°F
W
12 mph
12 mph
2100
73°F
W
11 mph
11 mph
