May weather forecastWaipio Acres, HI
May
Weather in May
The last month of the spring, May, is another warm month in Waipio Acres, Hawaii, with an average temperature ranging between min 71.4°F (21.9°C) and max 79.2°F (26.2°C).Temperature
May denotes a minimal variation in the average high-temperature to a still moderately hot 79.2°F (26.2°C) from April's 77.5°F (25.3°C). May nights in Waipio Acres, Hawaii, witness a slight temperature decrease, averaging at an agreeable 71.4°F (21.9°C).Humidity
In May, the average relative humidity is 74%.Rainfall
In Waipio Acres, in May, it is raining for 22.7 days, with typically 2.17" (55mm) of accumulated precipitation. Throughout the year, in Waipio Acres, there are 252.2 rainfall days, and 22.09" (561mm) of precipitation is accumulated.Daylight
In Waipio Acres, the average length of the day in May is 13h and 10min.On the first day of the month, sunrise is at 6:00 am and sunset at 6:57 pm. On the last day of May, sunrise is at 5:49 am and sunset at 7:10 pm HST.
Sunshine
In Waipio Acres, the average sunshine in May is 8.2h.UV index
The months with the highest UV index in Waipio Acres are March through November, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In May, the maximum UV index of 6 transforms into these recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Waipio Acres, HI
- Average high temperature in May: 79.2°F
The warmest month (with the highest average high temperature) is August (82.6°F).
The month with the lowest average high temperature is February (75.6°F).
- Average low temperature in May: 71.4°F
The month with the highest average low temperature is September (74.3°F).
The coldest month (with the lowest average low temperature) is February (66.7°F).
Average pressure in May
Waipio Acres, HI
- Average pressure in May: 30.04"Hg
The month with the highest atmospheric pressure is April (30.06"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in May
Waipio Acres, HI
- Average wind speed in May: 8.3mph
The windiest months (with the highest average wind speed) are June and July (10.2mph).
The calmest month (with the lowest average wind speed) is October (7.6mph).
Average humidity in May
Waipio Acres, HI
- Average humidity in May: 74%
The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is September (73%).
Average rainfall in May
Waipio Acres, HI
- Average rainfall in May: 2.17"
The wettest month (with the highest rainfall) is October (2.6").
The driest month (with the least rainfall) is July (1.26").
Average rainfall days in May
Waipio Acres, HI
- Average rainfall days in May: 22.7 days
The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is January (16 days).
Average daylight in May /
Average sunshine in May
Waipio Acres, HI
- Average daylight in May: 13h and 12min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in May: 8h and 12min
The month with the most sunshine is June (Average sunshine: 8h and 24min).
The month with the least sunshine is November (Average sunshine: 5h and 36min).
Average sunshine days in May
Waipio Acres, HI
- Average sunshine days in May: 5.2 days
The month with the most sunshine days is January (10.8 days).
The month with the least sunshine days is August (3.3 days).
Average UV index in May
Waipio Acres, HI
- Average UV index in May: 6
The months with the highest UV index are March, April, May, June, July, August, September, October and November (UV index 6).
The months with the lowest UV index are January, February and December (UV index 5).
Average cloud cover in May
Waipio Acres, HI
- Average cloud cover in May: 49
The month with the most cloud cover is June (Cloud cover 52).
The month with the least cloud cover is January (Cloud cover 43).
Average visibility in May
Waipio Acres, HI
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





