Current sea water temperature:
+79.5°F
| Minimum sea water temperature in May: | 80.8°F |
| Maximum sea water temperature in May: | 76.1°F |
| Average sea water temperature in May: | 78.4°F |
| more information | |
14 days
forecast
forecast
| Kailua Kona |
monthly
weather
weather
| Kailua Kona |
Sea water temperature for the last 10 days:
| May 17 | 79.5°F | May 12 | 79.2°F |
| May 16 | 79.3°F | May 11 | 79.3°F |
| May 15 | 79.3°F | May 10 | 79.7°F |
| May 14 | 79.2°F | May 9 | 79.7°F |
| May 13 | 79.5°F | May 8 | 79.9°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
May
May
| 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: 10:33
May 17, sunday
1200
81°F
E
7 mph
7 mph
1500
81°F
E
7 mph
7 mph
1800
79°F
NE
5 mph
5 mph
2100
79°F
N
6 mph
6 mph
May 18, monday
0000
77°F
N
4 mph
4 mph
0300
75°F
E
4 mph
4 mph
0600
75°F
S
6 mph
6 mph
0900
79°F
E
2 mph
2 mph
