21.12
sun
sun
Day
75°F
W 7 mph
Precip.
0%
0%
Night
70°F
S 2 mph
Precip.
100%
100%
22.12
mon
mon
Day
73°F
W 7 mph
Precip.
100%
100%
Night
70°F
SW 5 mph
Precip.
100%
100%
23.12
tue
tue
Day
72°F
SW 9 mph
Precip.
80%
80%
Night
70°F
SW 7 mph
Precip.
100%
100%
24.12
wed
wed
Day
70°F
SW 5 mph
Precip.
70%
70%
Night
68°F
SW 5 mph
Precip.
83%
83%
25.12
thu
thu
Day
72°F
W 7 mph
Precip.
100%
100%
Night
66°F
NE 2 mph
Precip.
100%
100%
26.12
fri
fri
Day
72°F
W 7 mph
Precip.
100%
100%
Night
68°F
W 4 mph
Precip.
100%
100%
27.12
sat
sat
Day
73°F
W 7 mph
Precip.
100%
100%
Night
68°F
N 3 mph
Precip.
73%
73%
28.12
sun
sun
Day
73°F
NW 9 mph
Precip.
0%
0%
Night
70°F
N 5 mph
Precip.
100%
100%
29.12
mon
mon
Day
73°F
NW 7 mph
Precip.
100%
100%
Night
70°F
NW 3 mph
Precip.
100%
100%
30.12
tue
tue
Day
73°F
W 9 mph
Precip.
100%
100%
Night
70°F
NW 5 mph
Precip.
82%
82%
31.12
wed
wed
Day
73°F
NW 9 mph
Precip.
0%
0%
Night
68°F
NE 7 mph
Precip.
100%
100%
01.01
thu
thu
Day
75°F
NW 12 mph
Precip.
100%
100%
Night
72°F
N 11 mph
Precip.
58%
58%
02.01
fri
fri
Day
79°F
N 9 mph
Precip.
100%
100%
Night
73°F
NE 1 mph
Precip.
0%
0%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 78.1°F. The highest and lowest sea temperatures during the month were 78.8°F and 77.5°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 77.2°F. The highest and lowest sea temperatures during the month were 77.7°F and 76.6°F.
Air temperature in Hilo, °F
Precipitation total in Hilo, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Hilo
Hilo on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Hilo
Local time: 01:33
December 21, sunday
0300
70°F
E
2 mph
2 mph
0600
70°F
E
2 mph
2 mph
0900
73°F
W
3 mph
3 mph
1200
75°F
W
7 mph
7 mph
1500
75°F
SW
8 mph
8 mph
1800
70°F
SW
3 mph
3 mph
2100
72°F
S
2 mph
2 mph
December 22, monday
0000
70°F
S
2 mph
2 mph
