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
With the advent of May, Keaau's high-temperatures adjust to a still agreeable 72.1°F (22.3°C), closely aligning with the preceding month. Keaau registers a small shift from peak daytime temperatures, with a consistent average low-temperature of 66.2°F (19°C) during May.Humidity
The months with the lowest humidity in Keaau are January, May through July, with an average relative humidity of 78%.Rainfall
In May, in Keaau, Hawaii, the rain falls for 20.2 days. Throughout May, 1.38" (35mm) of precipitation is accumulated. In Keaau, Hawaii, during the entire year, the rain falls for 227.7 days and collects up to 27.83" (707mm) of precipitation.Daylight
The average length of the day in May in Keaau is 13h and 4min.On the first day of the month, sunrise is at 5:50 am and sunset at 6:43 pm. On the last day of May, sunrise is at 5:40 am and sunset at 6:55 pm HST.
Sunshine
In Keaau, the average sunshine in May is 10.6h.UV index
May through December, with an average maximum UV index of 6, are months with the highest UV index in Keaau, Hawaii. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index, 6 during May, leads to the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Keaau?
What is the least humid month in Keaau?
What is the average humidity in May in Keaau?
How many days does it rain in May in Keaau?
What is the average length of the day in May in Keaau?
What time are sunrise and sunset in May in Keaau?
How long on average sun shines in May in Keaau?
What are the months with the highest UV index in Keaau?
How high is the UV index in May in Keaau?
Average temperature in May
Keaau, HI
- Average high temperature in May: 72.1°F
The warmest month (with the highest average high temperature) is August (75.4°F).
The month with the lowest average high temperature is March (69.6°F).
- Average low temperature in May: 66.2°F
The month with the highest average low temperature is September (70°F).
The coldest month (with the lowest average low temperature) is March (64°F).
Average pressure in May
Keaau, 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
Keaau, HI
- Average wind speed in May: 7mph
The windiest month (with the highest average wind speed) is August (7.6mph).
The calmest month (with the lowest average wind speed) is October (6.7mph).
Average humidity in May
Keaau, HI
- Average humidity in May: 78%
The month with the highest relative humidity is March (80%).
The months with the lowest relative humidity are January, May, June and July (78%).
Average rainfall in May
Keaau, HI
- Average rainfall in May: 1.38"
The wettest month (with the highest rainfall) is February (3.78").
The driest month (with the least rainfall) is June (1.1").
Average rainfall days in May
Keaau, HI
- Average rainfall days in May: 20.2 days
The month with the highest number of rainy days is March (22.9 days).
The month with the least rainy days is January (13.3 days).
Average daylight in May /
Average sunshine in May
Keaau, 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: 11h and 0min).
- Average sunshine in May: 10h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in May
Keaau, HI
- Average sunshine days in May: 3.3 days
The month with the most sunshine days is January (12.1 days).
The month with the least sunshine days is August (1.8 days).
Average UV index in May
Keaau, HI
- Average UV index in May: 6
The months with the highest UV index are May, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January, February, March and April (UV index 5).
Average cloud cover in May
Keaau, HI
- Average cloud cover in May: 33
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is January (Cloud cover 26).
Average visibility in May
Keaau, 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).
Keaau, Hawaii, USA
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