May weather forecastHalaula, HI
May
Weather in May
The last month of the spring, May, is another refreshing month in Halaula, Hawaii, with an average temperature ranging between min 55.9°F (13.3°C) and max 64.2°F (17.9°C).Temperature
The ushering in of May brings an average high-temperature of a still comfortable 64.2°F (17.9°C), closely mirroring the 63°F (17.2°C) of April. May witnesses a minor deviation from daytime peaks, with an average nighttime temperature of 55.9°F (13.3°C).Humidity
In Halaula, the average relative humidity in May is 82%.Rainfall
In Halaula, in May, during 26.5 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. Throughout the year, there are 280.8 rainfall days, and 33.9" (861mm) of precipitation is accumulated.Daylight
In May, the average length of the day in Halaula, Hawaii, is 13h and 7min.On the first day of May, sunrise is at 5:52 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 Halaula, the average sunshine in May 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 threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In May, the maximum UV index of 5 translates into these guidelines:
Guard yourself - An obligation to protect skin and eyes from harm exists. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Halaula, 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
Halaula, 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
Halaula, 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
Halaula, 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
Halaula, 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
Halaula, 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
Halaula, 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: 10h and 54min).
- 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
Halaula, 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
Halaula, 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
Halaula, 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
Halaula, 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).
