May weather forecastWaikane, HI
May
Weather in May
The last month of the spring, May, is another warm month in Waikane, Hawaii, with an average temperature fluctuating between 77.5°F (25.3°C) and 73.2°F (22.9°C).Temperature
May brings an average high-temperature of a still moderately hot 77.5°F (25.3°C), nearly identical to the preceding month. Waikane observes a minimal variance in temperature, with a consistent average low of 73.2°F (22.9°C) during the nights of May.Humidity
January, May, June, September and November, with an average relative humidity of 75%, are the least humid months.Rainfall
In Waikane, during May, the rain falls for 17.2 days and regularly aggregates up to 1.34" (34mm) of precipitation. In Waikane, Hawaii, during the entire year, the rain falls for 187.1 days and collects up to 15.83" (402mm) of precipitation.Daylight
In Waikane, Hawaii, the average length of the day in May is 13h and 10min.On the first day of the month, sunrise is at 5:59 am and sunset at 6:57 pm. On the last day of May, sunrise is at 5:48 am and sunset at 7:09 pm HST.
Sunshine
In May, the average sunshine is 10.3h.UV index
The months with the lowest UV index are January through June, October through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 6 during May morphs into the following directions:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Waikane, HI
- Average high temperature in May: 77.5°F
The warmest months (with the highest average high temperature) are August and September (81°F).
The month with the lowest average high temperature is February (74.3°F).
- Average low temperature in May: 73.2°F
The month with the highest average low temperature is August (76.6°F).
The coldest month (with the lowest average low temperature) is February (69.6°F).
Average pressure in May
Waikane, 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
Waikane, HI
- Average wind speed in May: 11.2mph
The windiest month (with the highest average wind speed) is July (13.5mph).
The calmest month (with the lowest average wind speed) is January (10.3mph).
Average humidity in May
Waikane, HI
- Average humidity in May: 75%
The months with the highest relative humidity are February, March, April, July, August, October and December (76%).
The months with the lowest relative humidity are January, May, June, September and November (75%).
Average rainfall in May
Waikane, HI
- Average rainfall in May: 1.34"
The wettest month (with the highest rainfall) is March (2.01").
The driest month (with the least rainfall) is July (0.71").
Average rainfall days in May
Waikane, HI
- Average rainfall days in May: 17.2 days
The month with the highest number of rainy days is March (18.3 days).
The month with the least rainy days is June (13.5 days).
Average daylight in May /
Average sunshine in May
Waikane, 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: 10h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in May
Waikane, HI
- Average sunshine days in May: 8.9 days
The month with the most sunshine days is June (12.2 days).
The month with the least sunshine days is April (6.5 days).
Average UV index in May
Waikane, HI
- Average UV index in May: 6
The months with the highest UV index are July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, October, November and December (UV index 6).
Average cloud cover in May
Waikane, HI
- Average cloud cover in May: 35
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in May
Waikane, 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).





