Current sea water temperature:
+74.3°F
| Minimum sea water temperature in April: | 78.1°F |
| Maximum sea water temperature in April: | 74.1°F |
| Average sea water temperature in April: | 75.9°F |
| more information | |
14 days
forecast
forecast
| Oahu |
monthly
weather
weather
| Oahu |
Sea water temperature for the last 10 days:
| April 6 | 74.3°F | April 1 | 74.3°F |
| April 5 | 74.5°F | March 31 | 74.3°F |
| April 4 | 74.1°F | March 30 | 74.7°F |
| April 3 | 74.1°F | March 29 | 74.8°F |
| April 2 | 74.3°F | March 28 | 75.0°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
April
April
| 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
April 06, monday
0300
68°F
W
5 mph
5 mph
0600
66°F
W
4 mph
4 mph
0900
72°F
W
5 mph
5 mph
1200
77°F
NW
5 mph
5 mph
1500
75°F
NW
3 mph
3 mph
1800
72°F
W
4 mph
4 mph
2100
68°F
W
6 mph
6 mph
April 07, tuesday
0000
68°F
W
3 mph
3 mph
