Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
Transitioning into May, Kalaheo records an average high-temperature of a still warm 76.8°F (24.9°C), almost identical to April's 74.8°F (23.8°C). May nights in Kalaheo document an average temperature reading of 72.1°F (22.3°C).Humidity
In May, the average relative humidity in Kalaheo is 76%.Rainfall
In Kalaheo, in May, during 18.5 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. Throughout the year, in Kalaheo, there are 218.4 rainfall days, and 22.13" (562mm) of precipitation is accumulated.Daylight
In May, the average length of the day is 13h and 12min.On the first day of the month, sunrise is at 6:05 am and sunset at 7:04 pm. On the last day of May, sunrise is at 5:54 am and sunset at 7:17 pm HST.
Sunshine
The average sunshine in May in Kalaheo is 9.3h.UV index
The months with the lowest UV index in Kalaheo are January through August, October through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 6 during May leads to these advisories:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Frequently asked questions
What is the average May temperature in Kalaheo?
What is the average humidity in May in Kalaheo?
How much does it rain in Kalaheo in May?
How many hours of daylight does Kalaheo have in May?
When is the sunrise / sunset in May in Kalaheo?
How many hours of sunshine does Kalaheo have in May?
What is the month with the lowest UV index in Kalaheo?
How high is the UV index in May in Kalaheo?
Average temperature in May
Kalaheo, HI
- Average high temperature in May: 76.8°F
The warmest month (with the highest average high temperature) is September (79.7°F).
The months with the lowest average high temperature are February and March (73.2°F).
- Average low temperature in May: 72.1°F
The month with the highest average low temperature is September (75.9°F).
The coldest month (with the lowest average low temperature) is February (68.5°F).
Average pressure in May
Kalaheo, HI
- Average pressure in May: 30.05"Hg
The month with the highest atmospheric pressure is April (30.07"Hg).
The months with the lowest atmospheric pressure are September and October (29.98"Hg).
Average wind speed in May
Kalaheo, HI
- Average wind speed in May: 10.5mph
The windiest month (with the highest average wind speed) is July (12.3mph).
The calmest month (with the lowest average wind speed) is January (10mph).
Average humidity in May
Kalaheo, HI
- Average humidity in May: 76%
The months with the highest relative humidity are June, July, August, October and December (77%).
The month with the lowest relative humidity is January (75%).
Average rainfall in May
Kalaheo, HI
- Average rainfall in May: 1.57"
The wettest month (with the highest rainfall) is March (2.52").
The driest month (with the least rainfall) is April (1.3").
Average rainfall days in May
Kalaheo, HI
- Average rainfall days in May: 18.5 days
The month with the highest number of rainy days is August (21.1 days).
The month with the least rainy days is January (12.5 days).
Average daylight in May /
Average sunshine in May
Kalaheo, HI
- Average daylight in May: 13h and 1min
The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 48min).
- Average sunshine in May: 9h and 2min
The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is November (Average sunshine: 6h and 12min).
Average sunshine days in May
Kalaheo, HI
- Average sunshine days in May: 6.7 days
The month with the most sunshine days is January (12.8 days).
The month with the least sunshine days is August (2.9 days).
Average UV index in May
Kalaheo, HI
- Average UV index in May: 6
The month with the highest UV index is September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 6).
Average cloud cover in May
Kalaheo, HI
- Average cloud cover in May: 41
The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are January and September (Cloud cover 38).
Average visibility in May
Kalaheo, 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).
Kalaheo, Hawaii, USA
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