Current sea water temperature:
+78.6°F
| Minimum sea water temperature in January: | 79.2°F |
| Maximum sea water temperature in January: | 75.6°F |
| Average sea water temperature in January: | 77.4°F |
| more information | |
14 days
forecast
forecast
| Kailua Kona |
monthly
weather
weather
| Kailua Kona |
Sea water temperature for the last 10 days:
| January 4 | 78.6°F | December 30 | 78.6°F |
| January 3 | 79.0°F | December 29 | 78.6°F |
| January 2 | 78.8°F | December 28 | 78.6°F |
| January 1 | 78.6°F | December 27 | 78.8°F |
| December 31 | 78.6°F | December 26 | 79.0°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
January
January
| 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: 20:22
January 04, sunday
2100
70°F
S
6 mph
6 mph
January 05, monday
0000
72°F
S
7 mph
7 mph
0300
72°F
NE
4 mph
4 mph
0600
70°F
E
3 mph
3 mph
0900
70°F
SE
2 mph
2 mph
1200
72°F
SE
3 mph
3 mph
1500
70°F
E
4 mph
4 mph
1800
70°F
SE
2 mph
2 mph
