May weather forecastKeanakolu, HI
May
Weather in May
The last month of the spring, May, is another refreshing month in Keanakolu, Hawaii, with an average temperature fluctuating between 55.9°F (13.3°C) and 64.2°F (17.9°C).Temperature
May's arrival shows an average high-temperature of a still comfortable 64.2°F (17.9°C), hardly different from the previous month. During the May nights, Keanakolu's temperature maintains an average close to the daytime highs, settling at a mild 55.9°F (13.3°C).Humidity
In Keanakolu, the average relative humidity in May is 82%.Rainfall
In Keanakolu, during May, the rain falls for 26.5 days and regularly aggregates up to 2.32" (59mm) of precipitation. Throughout the year, in Keanakolu, 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 5min.On the first day of the month, sunrise is at 5:51 am and sunset at 6:45 pm. On the last day of May, in Keanakolu, sunrise is at 5:41 am and sunset at 6:56 pm HST.
Sunshine
In Keanakolu, the average sunshine in May is 9.5h.UV index
The months with the highest UV index in Keanakolu are May through October, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In May, the maximum UV index of 5 suggests these recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Keanakolu, 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
Keanakolu, 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
Keanakolu, 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
Keanakolu, 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
Keanakolu, 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
Keanakolu, 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
Keanakolu, HI
- Average daylight in May: 13h and 6min
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: 9h and 30min
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
Keanakolu, 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
Keanakolu, 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
Keanakolu, 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
Keanakolu, 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).
