Current sea water temperature:
+76.8°F
| Minimum sea water temperature in January: | 77.9°F |
| Maximum sea water temperature in January: | 75.0°F |
| Average sea water temperature in January: | 76.5°F |
| more information | |
14 days
forecast
forecast
| Oahu |
monthly
weather
weather
| Oahu |
Sea water temperature for the last 10 days:
| January 13 | 76.8°F | January 8 | 76.3°F |
| January 12 | 76.8°F | January 7 | 75.9°F |
| January 11 | 76.6°F | January 6 | 75.9°F |
| January 10 | 76.5°F | January 5 | 76.3°F |
| January 9 | 76.1°F | January 4 | 76.3°F |
Monthly sea water temperature, °F
When is the warmest sea in Oahu?
Based on the data about daily sea water temperature for the last three years the warmest sea in Oahu was noticed in October, September and August.
Monthly Sea Temperatures in Oahu, °F
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 79.8°F. The highest and lowest sea temperatures during the month were 80.2°F and 79.0°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 79.8°F. The highest and lowest sea temperatures during the month were 80.6°F and 79.3°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 79.5°F. The highest and lowest sea temperatures during the month were 80.2°F and 78.6°F.
current
weather
weather
| Oahu |
weather in
January
January
| Oahu |
Best time for vacation in Oahu
Oahu on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Oahu
Local time: 01:24
January 13, tuesday
0300
63°F
SW
6 mph
6 mph
0600
63°F
SW
5 mph
5 mph
0900
68°F
SW
6 mph
6 mph
1200
73°F
W
5 mph
5 mph
1500
75°F
NW
2 mph
2 mph
1800
70°F
W
2 mph
2 mph
2100
68°F
NW
3 mph
3 mph
January 14, wednesday
0000
68°F
NW
2 mph
2 mph
