Current sea water temperature:
+80.4°F
| Minimum sea water temperature in October: | 82.0°F |
| Maximum sea water temperature in October: | 78.4°F |
| Average sea water temperature in October: | 80.2°F |
| more information | |
14 days
forecast
forecast
| Oahu |
monthly
weather
weather
| Oahu |
Sea water temperature for the last 10 days:
| October 4 | 80.4°F | September 29 | 80.1°F |
| October 3 | 80.2°F | September 28 | 80.4°F |
| October 2 | 79.9°F | September 27 | 80.8°F |
| October 1 | 79.7°F | September 26 | 80.8°F |
| September 30 | 79.9°F | September 25 | 80.8°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:
2026
2025
2024
The average sea water temperature in September of 2026 was 80.4°F. The highest and lowest sea temperatures during the month were 80.8°F and 79.3°F.
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 80.3°F. The highest and lowest sea temperatures during the month were 81.0°F and 79.7°F.
current
weather
weather
| Oahu |
weather in
October
October
| Oahu |
Best time for vacation in Oahu
Oahu on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Oahu
Local time: 15:54
October 04, sunday
1800
73°F
SW
12 mph
12 mph
2100
73°F
SW
12 mph
12 mph
October 05, monday
0000
72°F
SW
9 mph
9 mph
0300
72°F
SW
8 mph
8 mph
0600
72°F
SW
6 mph
6 mph
0900
75°F
SW
9 mph
9 mph
1200
77°F
SW
10 mph
10 mph
1500
79°F
SW
9 mph
9 mph
