Current sea water temperature:
+79.9°F
| Minimum sea water temperature in December: | 80.8°F |
| Maximum sea water temperature in December: | 75.6°F |
| Average sea water temperature in December: | 78.5°F |
| more information | |
14 days
forecast
forecast
| Kailua Kona |
monthly
weather
weather
| Kailua Kona |
Sea water temperature for the last 10 days:
| December 4 | 79.9°F | November 29 | 79.5°F |
| December 3 | 79.7°F | November 28 | 79.3°F |
| December 2 | 79.5°F | November 27 | 79.5°F |
| December 1 | 79.5°F | November 26 | 79.5°F |
| November 30 | 79.7°F | November 25 | 79.7°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
December
December
| 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: 18:34
December 04, thursday
2100
75°F
N
9 mph
9 mph
December 05, friday
0000
73°F
NW
4 mph
4 mph
0300
73°F
S
9 mph
9 mph
0600
73°F
S
6 mph
6 mph
0900
77°F
N
6 mph
6 mph
1200
79°F
E
8 mph
8 mph
1500
77°F
SE
11 mph
11 mph
1800
75°F
N
4 mph
4 mph
