29.04
wed
wed
Day
73°F
SW 11 mph
Precip.
100%
100%
Night
70°F
SW 6 mph
Precip.
100%
100%
30.04
thu
thu
Day
73°F
SW 11 mph
Precip.
100%
100%
Night
70°F
SW 7 mph
Precip.
100%
100%
01.05
fri
fri
Day
73°F
SW 10 mph
Precip.
88%
88%
Night
70°F
SE 3 mph
Precip.
100%
100%
02.05
sat
sat
Day
75°F
W 9 mph
Precip.
100%
100%
Night
70°F
W 2 mph
Precip.
100%
100%
03.05
sun
sun
Day
75°F
W 8 mph
Precip.
100%
100%
Night
72°F
SW 2 mph
Precip.
100%
100%
04.05
mon
mon
Day
75°F
W 7 mph
Precip.
100%
100%
Night
72°F
SW 2 mph
Precip.
100%
100%
05.05
tue
tue
Day
75°F
W 7 mph
Precip.
100%
100%
Night
72°F
NE 2 mph
Precip.
100%
100%
06.05
wed
wed
Day
75°F
W 7 mph
Precip.
100%
100%
Night
72°F
W 4 mph
Precip.
100%
100%
07.05
thu
thu
Day
75°F
W 7 mph
Precip.
64%
64%
Night
72°F
SW 3 mph
Precip.
68%
68%
08.05
fri
fri
Day
75°F
W 6 mph
Precip.
76%
76%
Night
72°F
W 3 mph
Precip.
100%
100%
09.05
sat
sat
Day
77°F
W 8 mph
Precip.
100%
100%
Night
73°F
NW 2 mph
Precip.
100%
100%
10.05
sun
sun
Day
79°F
W 9 mph
Precip.
84%
84%
Night
73°F
N 4 mph
Precip.
0%
0%
11.05
mon
mon
Day
79°F
W 9 mph
Precip.
81%
81%
Night
73°F
W 6 mph
Precip.
100%
100%
Sea water temperature in April, °F
Show year:
2026
2025
2024
The average sea water temperature in April of 2026 was 77.0°F. The highest and lowest sea temperatures during the month were 78.4°F and 75.6°F.
Sea water temperature in May, °F
Show year:
2025
2024
2023
The average sea water temperature in May of 2025 was 77.7°F. The highest and lowest sea temperatures during the month were 78.3°F and 77.2°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: 02:12
April 29, wednesday
0300
68°F
S
7 mph
7 mph
0600
68°F
S
8 mph
8 mph
0900
72°F
SW
9 mph
9 mph
1200
73°F
SW
11 mph
11 mph
1500
72°F
SW
12 mph
12 mph
1800
70°F
SW
10 mph
10 mph
2100
70°F
SW
7 mph
7 mph
April 30, thursday
0000
70°F
SW
6 mph
6 mph
