May weather forecastHolualoa, HI
May
Weather in May
As May progresses, a considerable increase in temperature is obvious as the average high rises to 74.7°F (23.7°C). Warm and sunny days begin to dominate the weather pattern. The month of May bursts with tropical festivities and vibrant blossoms, thus painting Holualoa, Hawaii in colorful splendor. This month marks the shift towards the warmer side of the year, promising abundant sunshine and perfect beach weather.Temperature
The ushering in of May in Holualoa brings an average high-temperature of a still warm 74.7°F (23.7°C), closely mirroring the 73.4°F (23°C) of April. In Holualoa, the nocturnal temperatures throughout May show a marginal dip from the daytime averages, settling at a pleasant 71.4°F (21.9°C).Humidity
The average relative humidity in May in Holualoa is 77%.Rainfall
In Holualoa, during May, the rain falls for 16.6 days and regularly aggregates up to 0.98" (25mm) of precipitation. Throughout the year, in Holualoa, there are 152.6 rainfall days, and 9.53" (242mm) of precipitation is accumulated.Daylight
In May, the average length of the day is 13h and 4min.On the first day of May, sunrise is at 5:54 am and sunset at 6:47 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 6:58 pm HST.
Sunshine
The month with the most sunshine is May, with an average of 11.2h of sunshine.UV index
January through December, with an average maximum UV index of 6, are months with the highest UV index in Holualoa. The months with the lowest UV index are January through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.Note: In May, the UV index of 6 transforms into the following advice:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Holualoa, HI
- Average high temperature in May: 74.7°F
The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is February (72.7°F).
- Average low temperature in May: 71.4°F
The months with the highest average low temperature are August and October (74.3°F).
The coldest month (with the lowest average low temperature) is January (69.3°F).
Average pressure in May
Holualoa, HI
- Average pressure in May: 30.03"Hg
The month with the highest atmospheric pressure is April (30.04"Hg).
The months with the lowest atmospheric pressure are September and October (29.96"Hg).
Average wind speed in May
Holualoa, HI
- Average wind speed in May: 6.2mph
The windiest months (with the highest average wind speed) are April and May (6.2mph).
The calmest months (with the lowest average wind speed) are July and December (5.5mph).
Average humidity in May
Holualoa, HI
- Average humidity in May: 77%
The months with the highest relative humidity are July and August (79%).
The month with the lowest relative humidity is February (71%).
Average rainfall in May
Holualoa, HI
- Average rainfall in May: 0.98"
The wettest month (with the highest rainfall) is September (1.02").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in May
Holualoa, HI
- Average rainfall days in May: 16.6 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is January (8.3 days).
Average daylight in May /
Average sunshine in May
Holualoa, 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: 11h and 12min
The month with the most sunshine is May (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).
Average sunshine days in May
Holualoa, HI
- Average sunshine days in May: 6.7 days
The month with the most sunshine days is January (17.6 days).
The month with the least sunshine days is May (6.7 days).
Average UV index in May
Holualoa, HI
- Average UV index in May: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
Average cloud cover in May
Holualoa, HI
- Average cloud cover in May: 22
The months with the most cloud cover are June and July (Cloud cover 24).
The month with the least cloud cover is January (Cloud cover 12).
Average visibility in May
Holualoa, 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).





