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
With May's arrival, Nānākuli's weather records an average high-temperature of a still moderately hot 78.6°F (25.9°C), marking little difference from April's 77°F (25°C). Nānākuli registers an average low-temperature of 72.7°F (22.6°C) throughout May, a modest decrease from its daytime highs.Humidity
January, April through June, August through November, with an average relative humidity of 74%, are the least humid months.Rainfall
In Nānākuli, during May, the rain falls for 17.1 days and regularly aggregates up to 1.22" (31mm) of precipitation. Throughout the year, there are 196.3 rainfall days, and 14.72" (374mm) of precipitation is accumulated.Ocean temperature
In May, the average ocean temperature is 78.3°F (25.7°C).Note: Water temperature ranging from 77°F (25°C) to 84.2°F (29°C) is seen as very warm and delightful by everyone. During these temperatures, water activities become enjoyable, without causing discomfort for extended periods.
Daylight
The average length of the day in May is 13h and 10min.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, sunrise is at 5:49 am and sunset at 7:11 pm HST.
Sunshine
In Nānākuli, the average sunshine in May is 10.3h.UV index
January through May, October through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In May, a daily UV index of 6 turns into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be wary! Reflections from sand and water make UV radiation more intense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Nānākuli?
What is the least humid month?
What is the average humidity in May?
How much does it rain in Nānākuli in May?
What is the ocean temperature in May?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How long on average sun shines in May?
When is the lowest UV index?
What is the UV index intensity in May?
Average temperature in May
Nānākuli, HI
- Average high temperature in May: 78.6°F
The warmest months (with the highest average high temperature) are August and September (81.7°F).
The month with the lowest average high temperature is February (75°F).
- Average low temperature in May: 72.7°F
The months with the highest average low temperature are August and September (75.9°F).
The coldest month (with the lowest average low temperature) is February (69.1°F).
Average pressure in May
Nānākuli, 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
Nānākuli, HI
- Average wind speed in May: 9.3mph
The windiest month (with the highest average wind speed) is July (11.6mph).
The calmest month (with the lowest average wind speed) is October (8.8mph).
Average humidity in May
Nānākuli, HI
- Average humidity in May: 74%
The month with the highest relative humidity is December (76%).
The months with the lowest relative humidity are January, April, May, June, August, September, October and November (74%).
Average rainfall in May
Nānākuli, HI
- Average rainfall in May: 1.22"
The wettest month (with the highest rainfall) is March (1.81").
The driest month (with the least rainfall) is July (0.67").
Average rainfall days in May
Nānākuli, HI
- Average rainfall days in May: 17.1 days
The month with the highest number of rainy days is September (18.9 days).
The month with the least rainy days is January (13.8 days).
Average sea temperature in May
Nānākuli, HI
- Average sea temperature in May: 78.2°F
The best month for swimming (with the highest average sea temperature) is September (80.6°F).
The coldest month (with the lowest average sea temperature) is March (75.7°F).
Average daylight in May /
Average sunshine in May
Nānākuli, 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 54min).
- Average sunshine in May: 10h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 6h and 36min).
Average sunshine days in May
Nānākuli, HI
- Average sunshine days in May: 9.8 days
The month with the most sunshine days is January (11.8 days).
The month with the least sunshine days is November (6.4 days).
Average UV index in May
Nānākuli, HI
- Average UV index in May: 6
The months with the highest UV index are June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, October, November and December (UV index 6).
Average cloud cover in May
Nānākuli, HI
- Average cloud cover in May: 33
The month with the most cloud cover is March (Cloud cover 38).
The months with the least cloud cover are January and September (Cloud cover 32).
Average visibility in May
Nānākuli, 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).
Nānākuli, Hawaii, USA
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