Weather in Hilo: May
Average day temperature: | 74.6°F | |
Average night temperature: | 69.1°F | |
Sea water temperature: | 77.3°F | |
Number of sunny days: | 14 days | |
Day length: | 12.9 - 13.2 hours | |
Number of rainy days: | 4 days | |
Precipitation totals: | 2.3 in. | |
more information |
forecast
Hilo |
temperature
Hilo |
Air temperature in May, °F
The highest day temperature during May of 2024 was 77°F. At the same time the lowest night temperature was 63°F. Day and night temperature averages during May were 70.1°F and 68.9°F.
Sea water temperature in Hilo in May, °F
The average sea water temperature in May of 2024 was 76.2°F. The highest and lowest sea temperatures during the month were 76.8°F and 75.2°F.
Mostly all days in May are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in May, in.
Precipitation total value in Hilo in May is 2.2 in. Other months of the year show relatively similar values.
The average wind speed value in May is 7.0 mph
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 4.8.
Best time for vacation in Hilo
Hilo on a weather map
3 mph
1 mph
2 mph
3 mph
6 mph
4 mph
4 mph
6 mph