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
In May, Kapaau's weather conditions record an average high-temperature of a still enjoyable 64.2°F (17.9°C), demonstrating little divergence from the preceding month. A mean low-temperature of 55.9°F (13.3°C) is anticipated during the month of May, a slight step down from the daytime high.Humidity
In Kapaau, the average relative humidity in May is 82%.Rainfall
In Kapaau, Hawaii, in May, it is raining for 26.5 days, with typically 2.32" (59mm) of accumulated precipitation. Throughout the year, in Kapaau, there are 280.8 rainfall days, and 33.9" (861mm) of precipitation is accumulated.Daylight
The average length of the day in May is 13h and 6min.On the first day of May in Kapaau, Hawaii, sunrise is at 5:53 am and sunset at 6:47 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 6:59 pm HST.
Sunshine
In May, the average sunshine is 9.5h.UV index
May through October, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: In May, a daily UV index of 5 turns into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
What are May temperatures in Kapaau?
What is the average humidity in May in Kapaau?
How much does it rain in Kapaau in May?
How many hours of daylight does Kapaau have in May?
When is the sunrise / sunset in May in Kapaau?
How many hours of sunshine does Kapaau have in May?
When is the highest UV index in Kapaau?
How high is the UV index in May in Kapaau?
Average temperature in May
Kapaau, HI
- Average high temperature in May: 64.2°F
The warmest month (with the highest average high temperature) is August (67.5°F).
The month with the lowest average high temperature is March (61.9°F).
- Average low temperature in May: 55.9°F
The month with the highest average low temperature is September (59°F).
The coldest month (with the lowest average low temperature) is February (52°F).
Average pressure in May
Kapaau, HI
- Average pressure in May: 30.03"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
Kapaau, HI
- Average wind speed in May: 4.5mph
The windiest months (with the highest average wind speed) are July and August (5.5mph).
The calmest months (with the lowest average wind speed) are January, May and October (4.5mph).
Average humidity in May
Kapaau, HI
- Average humidity in May: 82%
The months with the highest relative humidity are September and October (84%).
The month with the lowest relative humidity is February (78%).
Average rainfall in May
Kapaau, HI
- Average rainfall in May: 2.32"
The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is June (1.57").
Average rainfall days in May
Kapaau, HI
- Average rainfall days in May: 26.5 days
The month with the highest number of rainy days is September (27.3 days).
The month with the least rainy days is January (17.1 days).
Average daylight in May /
Average sunshine in May
Kapaau, HI
- Average daylight in May: 13h and 1min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in May: 9h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in May
Kapaau, HI
- Average sunshine days in May: 3.3 days
The month with the most sunshine days is January (9.7 days).
The month with the least sunshine days is September (0.8 days).
Average UV index in May
Kapaau, HI
- Average UV index in May: 5
The months with the highest UV index are May, June, July, August, September and October (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).
Average cloud cover in May
Kapaau, HI
- Average cloud cover in May: 42
The months with the most cloud cover are April and September (Cloud cover 43).
The month with the least cloud cover is January (Cloud cover 29).
Average visibility in May
Kapaau, 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).
Kapaau, Hawaii, USA
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