May weather forecastKahakuloa, HI
May
Weather in May
The last month of the spring, May, is also a moderately hot month in Kahakuloa, Hawaii, with temperature in the range of an average low of 73°F (22.8°C) and an average high of 76.8°F (24.9°C).Temperature
The onset of May manifests an average high-temperature of a still warm 76.8°F (24.9°C), demonstrating a minor variation from the preceding month. Kahakuloa's nocturnal average in May closely mirrors its daytime temperatures, settling at an agreeable 73°F (22.8°C).Humidity
In Kahakuloa, the average relative humidity in May is 76%.Rainfall
In Kahakuloa, in May, it is raining for 10.3 days, with typically 0.55" (14mm) of accumulated precipitation. Throughout the year, in Kahakuloa, there are 112.6 rainfall days, and 7.91" (201mm) of precipitation is accumulated.Daylight
In Kahakuloa, the average length of the day in May is 13h and 9min.On the first day of May in Kahakuloa, sunrise is at 5:55 am and sunset at 6:51 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 7:03 pm HST.
Sunshine
In Kahakuloa, Hawaii, the average sunshine in May is 10.6h.UV index
The months with the lowest UV index are January through June, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 6 in May interprets into the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Kahakuloa, HI
- Average high temperature in May: 76.8°F
The warmest month (with the highest average high temperature) is September (79.7°F).
The month with the lowest average high temperature is February (73.9°F).
- Average low temperature in May: 73°F
The months with the highest average low temperature are August and October (76.5°F).
The coldest month (with the lowest average low temperature) is March (70.7°F).
Average pressure in May
Kahakuloa, 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
Kahakuloa, HI
- Average wind speed in May: 11.7mph
The windiest month (with the highest average wind speed) is July (13.9mph).
The calmest month (with the lowest average wind speed) is January (10.6mph).
Average humidity in May
Kahakuloa, HI
- Average humidity in May: 76%
The month with the highest relative humidity is July (77%).
The months with the lowest relative humidity are January, February, March, September and November (75%).
Average rainfall in May
Kahakuloa, HI
- Average rainfall in May: 0.55"
The wettest month (with the highest rainfall) is March (1.1").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in May
Kahakuloa, HI
- Average rainfall days in May: 10.3 days
The month with the highest number of rainy days is March (13.4 days).
The month with the least rainy days is November (7.7 days).
Average daylight in May /
Average sunshine in May
Kahakuloa, HI
- Average daylight in May: 13h and 6min
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 36min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in May
Kahakuloa, HI
- Average sunshine days in May: 17.2 days
The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is March (12.6 days).
Average UV index in May
Kahakuloa, HI
- Average UV index in May: 6
The months with the highest UV index are July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, November and December (UV index 6).
Average cloud cover in May
Kahakuloa, HI
- Average cloud cover in May: 30
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is September (Cloud cover 25).
Average visibility in May
Kahakuloa, 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).





