Current sea water temperature:
+80.6°F
| Minimum sea water temperature in July: | 82.4°F |
| Maximum sea water temperature in July: | 77.2°F |
| Average sea water temperature in July: | 80.1°F |
| more information | |
14 days
forecast
forecast
| Kailua Kona |
monthly
weather
weather
| Kailua Kona |
Sea water temperature for the last 10 days:
| July 20 | 80.6°F | July 15 | 80.2°F |
| July 19 | 80.6°F | July 14 | 80.2°F |
| July 18 | 81.0°F | July 13 | 80.6°F |
| July 17 | 80.6°F | July 12 | 81.1°F |
| July 16 | 80.6°F | July 11 | 80.8°F |
Monthly sea water temperature, °F
When is the warmest sea in Kailua Kona?
Based on the data about daily sea water temperature for the last three years the warmest sea in Kailua Kona was noticed in September, October and August.
Monthly Sea Temperatures in Kailua Kona, °F
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 80.9°F. The highest and lowest sea temperatures during the month were 81.3°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 80.9°F. The highest and lowest sea temperatures during the month were 81.3°F and 80.4°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 80.9°F. The highest and lowest sea temperatures during the month were 81.1°F and 80.6°F.
current
weather
weather
| Kailua Kona |
weather in
July
July
| Kailua Kona |
Best time for vacation in Kailua Kona
Kailua Kona on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Kailua Kona
Local time: 15:39
July 20, monday
1800
79°F
NE
5 mph
5 mph
2100
79°F
NE
2 mph
2 mph
July 21, tuesday
0000
77°F
E
3 mph
3 mph
0300
77°F
SE
3 mph
3 mph
0600
77°F
NE
2 mph
2 mph
0900
79°F
N
4 mph
4 mph
1200
81°F
NE
7 mph
7 mph
1500
81°F
NE
7 mph
7 mph
