May weather forecastWaimanalo, HI
May
Weather in May
The last month of the spring, May, is another warm month in Waimanalo, Hawaii, with an average temperature ranging between min 74.1°F (23.4°C) and max 77.7°F (25.4°C).Temperature
May's average high-temperature is a still warm 77.7°F (25.4°C), maintaining a close comparison with April's 76.1°F (24.5°C). Waimanalo's nighttime temperature in May experiences a slight dip from daytime highs, falling to an average of 74.1°F (23.4°C).Humidity
In Waimanalo, the average relative humidity in May is 75%.Rainfall
In May, the rain falls for 15.8 days. Throughout May, 0.98" (25mm) of precipitation is accumulated. In Waimanalo, during the entire year, the rain falls for 169.9 days and collects up to 13.15" (334mm) of precipitation.Daylight
The average length of the day in May is 13h and 10min.On the first day of the month, sunrise is at 5:59 am and sunset at 6:56 pm. On the last day of May, sunrise is at 5:48 am and sunset at 7:09 pm HST.
Sunshine
In Waimanalo, the average sunshine in May is 10.8h.UV index
The months with the lowest UV index are January through June, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 6 during May leads to these instructions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Waimanalo, HI
- Average high temperature in May: 77.7°F
The warmest month (with the highest average high temperature) is September (80.6°F).
The month with the lowest average high temperature is February (74.5°F).
- Average low temperature in May: 74.1°F
The months with the highest average low temperature are September and October (77°F).
The coldest month (with the lowest average low temperature) is February (70.5°F).
Average pressure in May
Waimanalo, HI
- Average pressure in May: 30.04"Hg
The month with the highest atmospheric pressure is April (30.06"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in May
Waimanalo, HI
- Average wind speed in May: 11.6mph
The windiest month (with the highest average wind speed) is July (14.1mph).
The calmest month (with the lowest average wind speed) is January (10.7mph).
Average humidity in May
Waimanalo, HI
- Average humidity in May: 75%
The months with the highest relative humidity are April, June, July, August and December (76%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall in May
Waimanalo, HI
- Average rainfall in May: 0.98"
The wettest month (with the highest rainfall) is March (1.69").
The driest month (with the least rainfall) is July (0.55").
Average rainfall days in May
Waimanalo, HI
- Average rainfall days in May: 15.8 days
The month with the highest number of rainy days is March (16.9 days).
The month with the least rainy days is June (11.3 days).
Average daylight in May /
Average sunshine in May
Waimanalo, HI
- Average daylight in May: 13h and 12min
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 54min).
- Average sunshine in May: 10h and 48min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in May
Waimanalo, HI
- Average sunshine days in May: 9.3 days
The month with the most sunshine days is June (13.6 days).
The months with the least sunshine days are March and November (6.6 days).
Average UV index in May
Waimanalo, HI
- Average UV index in May: 6
The months with the highest UV index are July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, November and December (UV index 6).
Average cloud cover in May
Waimanalo, HI
- Average cloud cover in May: 29
The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is September (Cloud cover 27).
Average visibility in May
Waimanalo, 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).
