Current sea water temperature:
+81.3°F
| Minimum sea water temperature in August: | 83.7°F |
| Maximum sea water temperature in August: | 77.7°F |
| Average sea water temperature in August: | 80.4°F |
| more information | |
14 days
forecast
forecast
| Honolulu |
monthly
weather
weather
| Honolulu |
Sea water temperature for the last 10 days:
| August 14 | 81.3°F | August 9 | 81.1°F |
| August 13 | 81.5°F | August 8 | 81.1°F |
| August 12 | 81.3°F | August 7 | 81.3°F |
| August 11 | 81.3°F | August 6 | 81.1°F |
| August 10 | 81.3°F | August 5 | 81.0°F |
Monthly sea water temperature, °F
When is the warmest sea in Honolulu?
Based on the data about daily sea water temperature for the last three years the warmest sea in Honolulu was noticed in September, October and August.
Monthly Sea Temperatures in Honolulu, °F
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 80.6°F. The highest and lowest sea temperatures during the month were 81.5°F and 80.1°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 80.7°F. The highest and lowest sea temperatures during the month were 81.1°F and 79.9°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 80.8°F. The highest and lowest sea temperatures during the month were 81.3°F and 79.9°F.
current
weather
weather
| Honolulu |
weather in
August
August
| Honolulu |
Best time for vacation in Honolulu
Honolulu on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Honolulu
Local time: 18:34
August 14, friday
2100
77°F
SW
24 mph
24 mph
August 15, saturday
0000
77°F
SW
22 mph
22 mph
0300
77°F
SW
24 mph
24 mph
0600
77°F
SW
25 mph
25 mph
0900
79°F
SW
29 mph
29 mph
1200
81°F
SW
32 mph
32 mph
1500
81°F
SW
31 mph
31 mph
1800
79°F
SW
30 mph
30 mph
