Current sea water temperature:
+78.1°F
| Minimum sea water temperature in January: | 78.6°F |
| Maximum sea water temperature in January: | 74.7°F |
| Average sea water temperature in January: | 76.7°F |
| more information | |
14 days
forecast
forecast
| Honolulu |
monthly
weather
weather
| Honolulu |
Sea water temperature for the last 10 days:
| January 1 | 78.1°F | December 27 | 78.1°F |
| December 31 | 77.9°F | December 26 | 78.3°F |
| December 30 | 77.9°F | December 25 | 78.4°F |
| December 29 | 78.1°F | December 24 | 78.4°F |
| December 28 | 77.9°F | December 23 | 78.4°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
January
January
| Honolulu |
Best time for vacation in Honolulu
Honolulu on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Honolulu
Local time: 23:46
January 01, thursday
0000
73°F
W
17 mph
17 mph
0300
73°F
W
17 mph
17 mph
0600
73°F
W
15 mph
15 mph
0900
75°F
W
15 mph
15 mph
1200
75°F
W
17 mph
17 mph
1500
75°F
SW
16 mph
16 mph
1800
73°F
SW
18 mph
18 mph
2100
73°F
W
21 mph
21 mph
