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
The onset of May marks an average high-temperature of a still moderately hot 78.6°F (25.9°C), hardly differing from April's 76.8°F (24.9°C). Throughout the nights in May, Ewa Beach notes an average low of 73°F (22.8°C), a small dip from the daytime peak.Humidity
January, April through June, August through November, with an average relative humidity of 74%, are the least humid months.Rainfall
In Ewa Beach, in May, it is raining for 16.7 days, with typically 1.14" (29mm) of accumulated precipitation. Throughout the year, there are 172.2 rainfall days, and 12.72" (323mm) of precipitation is accumulated.Ocean temperature
In May, the average ocean temperature in Ewa Beach is 78.3°F (25.7°C).Note: Water activities in temperatures ranging from 77°F (25°C) to 84.2°F (29°C) are pleasurable, without feeling uncomfortable even during extended periods.
Daylight
The average length of the day in May is 13h and 10min.On the first day of May, sunrise is at 6:00 am and sunset at 6:57 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 7:10 pm HST.
Sunshine
In May, the average sunshine is 10.5h.UV index
The months with the lowest UV index are January through May, October through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In May, the maximum UV index of 6 transforms into these recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Stay sun-safe with clothing that is both closely woven and worn loosely. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What are the least humid months?
What is the average humidity in May?
How many days does it rain in May?
What is the water temperature in May?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Ewa Beach have in May?
What is the month with the lowest UV index?
How high is the UV index in May?
Average temperature in May
Ewa Beach, HI
- Average high temperature in May: 78.6°F
The warmest months (with the highest average high temperature) are August and September (81.5°F).
The month with the lowest average high temperature is February (74.8°F).
- Average low temperature in May: 73°F
The months with the highest average low temperature are August and September (76.3°F).
The coldest month (with the lowest average low temperature) is February (69.4°F).
Average pressure in May
Ewa Beach, HI
- Average pressure in May: 30.04"Hg
The months with the highest atmospheric pressure are March and April (30.05"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in May
Ewa Beach, HI
- Average wind speed in May: 9.6mph
The windiest month (with the highest average wind speed) is July (11.9mph).
The calmest months (with the lowest average wind speed) are January and October (9.1mph).
Average humidity in May
Ewa Beach, 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
Ewa Beach, HI
- Average rainfall in May: 1.14"
The wettest month (with the highest rainfall) is March (1.77").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in May
Ewa Beach, HI
- Average rainfall days in May: 16.7 days
The month with the highest number of rainy days is March (18.1 days).
The month with the least rainy days is July (11.3 days).
Average sea temperature in May
Ewa Beach, 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
Ewa Beach, 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 3min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).
Average sunshine days in May
Ewa Beach, HI
- Average sunshine days in May: 10.3 days
The months with the most sunshine days are July and August (15.3 days).
The month with the least sunshine days is March (6.8 days).
Average UV index in May
Ewa Beach, 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
Ewa Beach, HI
- Average cloud cover in May: 32
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in May
Ewa Beach, 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).
Ewa Beach, Hawaii, USA
Weather forecast for your location
2. Allow the app to use your location