26.07
sun
sun
Day
77°F
SW 7 mph
Precip.
18%
18%
Night
73°F
S 6 mph
Precip.
23%
23%
27.07
mon
mon
Day
81°F
S 12 mph
Precip.
11%
11%
Night
75°F
S 9 mph
Precip.
27%
27%
28.07
tue
tue
Day
81°F
S 13 mph
Precip.
18%
18%
Night
75°F
S 4 mph
Precip.
28%
28%
29.07
wed
wed
Day
81°F
W 8 mph
Precip.
19%
19%
Night
75°F
NW 7 mph
Precip.
30%
30%
30.07
thu
thu
Day
81°F
W 9 mph
Precip.
4%
4%
Night
73°F
E 2 mph
Precip.
24%
24%
31.07
fri
fri
Day
79°F
SW 11 mph
Precip.
24%
24%
Night
73°F
NW 7 mph
Precip.
25%
25%
01.08
sat
sat
Day
77°F
SW 13 mph
Precip.
36%
36%
Night
72°F
S 6 mph
Precip.
26%
26%
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 80.2°F. The highest and lowest sea temperatures during the month were 80.6°F and 79.7°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 79.9°F. The highest and lowest sea temperatures during the month were 80.6°F and 79.2°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: 08:19
July 26, sunday
0900
75°F
S
7 mph
7 mph
1200
77°F
SW
7 mph
7 mph
1500
77°F
SW
10 mph
10 mph
1800
75°F
SW
11 mph
11 mph
2100
73°F
S
9 mph
9 mph
July 27, monday
0000
73°F
S
6 mph
6 mph
0300
70°F
SE
6 mph
6 mph
0600
68°F
SE
8 mph
8 mph
