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 sea temperature 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
Waialua experiences a transition to a still warm 78.6°F (25.9°C) in average high-temperatures with the arrival of May, not greatly differing from April's 76.8°F (24.9°C). Waialua upholds a consistent average temperature of 72.9°F (22.7°C) throughout the nights of May.Humidity
The months with the lowest humidity in Waialua are May and September, with an average relative humidity of 74%.Rainfall
In Waialua, during May, the rain falls for 17.2 days and regularly aggregates up to 1.02" (26mm) of precipitation. In Waialua, Hawaii, during the entire year, the rain falls for 190.2 days and collects up to 11.65" (296mm) of precipitation.Ocean temperature
In Waialua, the average seawater temperature in May is 77.7°F (25.4°C).Note: For any water activity, surface water temperatures from 77°F (25°C) to 84.2°F (29°C) are deemed perfect and extremely pleasing for enduring enjoyment.
Daylight
The average length of the day in May in Waialua is 13h and 11min.On the first day of the month, sunrise is at 6:00 am and sunset at 6:58 pm. On the last day of May, in Waialua, Hawaii, sunrise is at 5:49 am and sunset at 7:11 pm HST.
Sunshine
In May, the average sunshine in Waialua is 9.7h.UV index
The months with the lowest UV index in Waialua, Hawaii, are January through June, August, October through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.Note: A maximum high UV index of 6 in May translates into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Warning! The Sun's UV rays intensify with reflections from sand and water.
Frequently asked questions
What are May temperatures in Waialua?
What are the least humid months in Waialua?
What is the average humidity in May in Waialua?
How many days does it rain in May in Waialua?
What is the water temperature in May in Waialua?
What is the average length of the day in May in Waialua?
What time are sunrise and sunset in May in Waialua?
How long on average sun shines in May in Waialua?
When is the lowest UV index in Waialua?
What is the UV index reading in May in Waialua?
Average temperature in May
Waialua, HI
- Average high temperature in May: 78.6°F
The warmest month (with the highest average high temperature) is September (81.7°F).
The month with the lowest average high temperature is February (75°F).
- Average low temperature in May: 72.9°F
The months with the highest average low temperature are August and September (75.7°F).
The coldest month (with the lowest average low temperature) is February (68.5°F).
Average pressure in May
Waialua, HI
- Average pressure in May: 30.04"Hg
The month with the highest atmospheric pressure is April (30.06"Hg).
The month with the lowest atmospheric pressure is October (29.97"Hg).
Average wind speed in May
Waialua, HI
- Average wind speed in May: 9.7mph
The windiest month (with the highest average wind speed) is July (11.6mph).
The calmest month (with the lowest average wind speed) is January (9mph).
Average humidity in May
Waialua, HI
- Average humidity in May: 74%
The months with the highest relative humidity are February and December (76%).
The months with the lowest relative humidity are May and September (74%).
Average rainfall in May
Waialua, HI
- Average rainfall in May: 1.02"
The wettest months (with the highest rainfall) are February and October (1.34").
The driest month (with the least rainfall) is July (0.63").
Average rainfall days in May
Waialua, HI
- Average rainfall days in May: 17.2 days
The month with the highest number of rainy days is March (17.7 days).
The month with the least rainy days is January (12.5 days).
Average sea temperature in May
Waialua, HI
- Average sea temperature in May: 77.7°F
The best month for swimming (with the highest average sea temperature) is September (80.2°F).
The coldest month (with the lowest average sea temperature) is March (75.2°F).
Average daylight in May /
Average sunshine in May
Waialua, HI
- Average daylight in May: 13h and 1min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 48min).
- Average sunshine in May: 9h and 4min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is November (Average sunshine: 6h and 12min).
Average sunshine days in May
Waialua, HI
- Average sunshine days in May: 8.5 days
The month with the most sunshine days is January (12.9 days).
The month with the least sunshine days is September (6.5 days).
Average UV index in May
Waialua, HI
- Average UV index in May: 6
The months with the highest UV index are July and September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, August, October, November and December (UV index 6).
Average cloud cover in May
Waialua, HI
- Average cloud cover in May: 39
The month with the most cloud cover is March (Cloud cover 44).
The months with the least cloud cover are January and September (Cloud cover 37).
Average visibility in May
Waialua, 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).
Waialua, Hawaii, USA
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