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
The average high-temperature for May is a still warm 77°F (25°C), closely aligning with the temperature of the preceding month. Nighttime temperatures record an average of 73.4°F (23°C) throughout May.Humidity
The average relative humidity in May is 75%.Rainfall
In Waikapu, in May, it is raining for 8.3 days, with typically 0.43" (11mm) of accumulated precipitation. In Waikapu, during the entire year, the rain falls for 103.4 days and collects up to 6.57" (167mm) of precipitation.Daylight
In May, the average length of the day is 13h and 8min.On the first day of the month, sunrise is at 5:55 am and sunset at 6:50 pm. On the last day of May, sunrise is at 5:44 am and sunset at 7:03 pm HST.
Sunshine
In Waikapu, the average sunshine in May is 11h.UV index
January through June, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index, 6 during May, leads to the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
How much does it rain in May?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Waikapu have in May?
What is the month with the lowest UV index?
How high is the UV index in May?
Average temperature in May
Waikapu, HI
- Average high temperature in May: 77°F
The warmest month (with the highest average high temperature) is September (79.9°F).
The month with the lowest average high temperature is February (73.9°F).
- Average low temperature in May: 73.4°F
The month with the highest average low temperature is October (76.5°F).
The coldest months (with the lowest average low temperature) are February and March (70.7°F).
Average pressure in May
Waikapu, HI
- Average pressure in May: 30.04"Hg
The month with the highest atmospheric pressure is April (30.05"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in May
Waikapu, HI
- Average wind speed in May: 11.7mph
The windiest month (with the highest average wind speed) is June (13.6mph).
The calmest month (with the lowest average wind speed) is January (10.4mph).
Average humidity in May
Waikapu, HI
- Average humidity in May: 75%
The months with the highest relative humidity are July and August (76%).
The months with the lowest relative humidity are January and February (74%).
Average rainfall in May
Waikapu, HI
- Average rainfall in May: 0.43"
The wettest months (with the highest rainfall) are March and December (0.87").
The driest month (with the least rainfall) is June (0.2").
Average rainfall days in May
Waikapu, HI
- Average rainfall days in May: 8.3 days
The month with the highest number of rainy days is March (11.9 days).
The month with the least rainy days is June (6.6 days).
Average daylight in May /
Average sunshine in May
Waikapu, HI
- Average daylight in May: 13h and 1min
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: 11h and 0min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in May
Waikapu, HI
- Average sunshine days in May: 18.5 days
The month with the most sunshine days is June (19.9 days).
The month with the least sunshine days is March (15.2 days).
Average UV index in May
Waikapu, 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
Waikapu, HI
- Average cloud cover in May: 25
The month with the most cloud cover is March (Cloud cover 30).
The months with the least cloud cover are June and September (Cloud cover 21).
Average visibility in May
Waikapu, 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).
Waikapu, Hawaii, USA
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