16.08
sun
sun
Day
79°F
NW 16 mph
Precip.
36%
36%
Night
75°F
NW 6 mph
Precip.
41%
41%
17.08
mon
mon
Day
75°F
W 9 mph
Precip.
70%
70%
Night
75°F
SW 5 mph
Precip.
36%
36%
18.08
tue
tue
Day
75°F
SW 5 mph
Precip.
24%
24%
Night
72°F
E 1 mph
Precip.
26%
26%
19.08
wed
wed
Day
79°F
SW 6 mph
Precip.
23%
23%
Night
75°F
SW 3 mph
Precip.
58%
58%
20.08
thu
thu
Day
79°F
SW 7 mph
Precip.
19%
19%
Night
73°F
E 2 mph
Precip.
16%
16%
21.08
fri
fri
Day
81°F
W 7 mph
Precip.
15%
15%
Night
75°F
N 3 mph
Precip.
21%
21%
22.08
sat
sat
Day
81°F
NW 9 mph
Precip.
11%
11%
Night
75°F
SW 3 mph
Precip.
28%
28%
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 80.9°F. The highest and lowest sea temperatures during the month were 81.3°F and 79.9°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: 09:40
August 16, sunday
1200
79°F
NW
16 mph
16 mph
1500
81°F
NW
14 mph
14 mph
1800
79°F
NW
11 mph
11 mph
2100
75°F
N
7 mph
7 mph
August 17, monday
0000
75°F
NW
6 mph
6 mph
0300
73°F
NW
4 mph
4 mph
0600
73°F
NW
3 mph
3 mph
0900
77°F
W
7 mph
7 mph
