18.12
thu
thu
Day
79°F
NE 8 mph
Precip.
76%
76%
Night
73°F
N 3 mph
Precip.
66%
66%
19.12
fri
fri
Day
79°F
SE 8 mph
Precip.
0%
0%
Night
75°F
SW 3 mph
Precip.
0%
0%
20.12
sat
sat
Day
79°F
E 8 mph
Precip.
0%
0%
Night
73°F
NE 2 mph
Precip.
69%
69%
21.12
sun
sun
Day
77°F
E 7 mph
Precip.
77%
77%
Night
73°F
E 2 mph
Precip.
0%
0%
22.12
mon
mon
Day
77°F
E 5 mph
Precip.
26%
26%
Night
73°F
N 2 mph
Precip.
0%
0%
23.12
tue
tue
Day
77°F
S 5 mph
Precip.
82%
82%
Night
73°F
N 4 mph
Precip.
100%
100%
24.12
wed
wed
Day
75°F
NE 7 mph
Precip.
100%
100%
Night
72°F
NW 7 mph
Precip.
70%
70%
25.12
thu
thu
Day
75°F
NE 7 mph
Precip.
100%
100%
Night
72°F
N 7 mph
Precip.
100%
100%
26.12
fri
fri
Day
73°F
SE 7 mph
Precip.
100%
100%
Night
72°F
SE 4 mph
Precip.
100%
100%
27.12
sat
sat
Day
77°F
SE 4 mph
Precip.
0%
0%
Night
72°F
NW 2 mph
Precip.
0%
0%
28.12
sun
sun
Day
75°F
E 4 mph
Precip.
87%
87%
Night
72°F
E 2 mph
Precip.
20%
20%
29.12
mon
mon
Day
75°F
N 5 mph
Precip.
100%
100%
Night
72°F
N 1 mph
Precip.
100%
100%
30.12
tue
tue
Day
75°F
N 6 mph
Precip.
100%
100%
Night
72°F
NW 2 mph
Precip.
100%
100%
31.12
wed
wed
Day
75°F
E 6 mph
Precip.
100%
100%
Night
73°F
NW 2 mph
Precip.
0%
0%
sea water
temperature
temperature
| Kailua Kona |
monthly
weather
weather
| Kailua Kona |
current
weather
weather
| Kailua Kona |
7 days
forecast
forecast
| Kailua Kona |
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 79.4°F. The highest and lowest sea temperatures during the month were 79.9°F and 79.0°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 78.2°F. The highest and lowest sea temperatures during the month were 78.8°F and 77.7°F.
Air temperature in Kailua Kona, °F
Precipitation total in Kailua Kona, in.
* Charts above show average data for the last 3 years.
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: 06:41
December 18, thursday
0900
77°F
N
2 mph
2 mph
1200
79°F
NE
8 mph
8 mph
1500
77°F
NE
8 mph
8 mph
1800
75°F
N
6 mph
6 mph
2100
75°F
N
4 mph
4 mph
December 19, friday
0000
73°F
N
3 mph
3 mph
0300
73°F
NW
1 mph
1 mph
0600
73°F
S
2 mph
2 mph
