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
Waipahu measures an average high-temperature of a still warm 78.6°F (25.9°C) in May, nearly consistent with the preceding month. Recording a slight drop from the daily maximum, Waipahu notes an average low temperature of 72.1°F (22.3°C) in the month of May.Humidity
April through June and September, with an average relative humidity of 74%, are the least humid months in Waipahu.Rainfall
In Waipahu, during May, the rain falls for 18.4 days and regularly aggregates up to 1.46" (37mm) of precipitation. Throughout the year, in Waipahu, there are 208.4 rainfall days, and 16.5" (419mm) of precipitation is accumulated.Ocean temperature
In Waipahu, Hawaii, in May, the average water temperature is 78.3°F (25.7°C).Note: Ideal surface water temperatures for any water activity fall between 77°F (25°C) and 84.2°F (29°C), offering maximum enjoyment for lengthened periods.
Daylight
In May, the average length of the day 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 Waipahu, the average sunshine in May is 9.5h.UV index
The months with the lowest UV index in Waipahu, Hawaii, are January through August, October through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 6 during May translates into the following directions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Be wary! Reflections from sand and water make UV radiation more intense.
Frequently asked questions
What are May temperatures in Waipahu?
What is the least humid month in Waipahu?
What is the average humidity in May in Waipahu?
How many days does it rain in May in Waipahu?
How warm is the water in May in Waipahu?
How many hours of daylight does Waipahu have in May?
When is the sunrise / sunset in May in Waipahu?
How many hours of sunshine does Waipahu have in May?
What are the months with the lowest UV index in Waipahu?
What is the UV index reading in May in Waipahu?
Average temperature in May
Waipahu, HI
- Average high temperature in May: 78.6°F
The warmest months (with the highest average high temperature) are August and September (82°F).
The months with the lowest average high temperature are February and March (75.4°F).
- Average low temperature in May: 72.1°F
The month with the highest average low temperature is September (75°F).
The coldest month (with the lowest average low temperature) is February (68°F).
Average pressure in May
Waipahu, 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
Waipahu, HI
- Average wind speed in May: 9.1mph
The windiest month (with the highest average wind speed) is July (11.3mph).
The calmest month (with the lowest average wind speed) is January (8.4mph).
Average humidity in May
Waipahu, 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 April, May, June and September (74%).
Average rainfall in May
Waipahu, HI
- Average rainfall in May: 1.46"
The wettest month (with the highest rainfall) is October (2.09").
The driest month (with the least rainfall) is July (0.71").
Average rainfall days in May
Waipahu, HI
- Average rainfall days in May: 18.4 days
The month with the highest number of rainy days is March (20 days).
The month with the least rainy days is January (13.5 days).
Average sea temperature in May
Waipahu, 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
Waipahu, 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: 9h and 3min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The months with the least sunshine are November and December (Average sunshine: 6h and 18min).
Average sunshine days in May
Waipahu, HI
- Average sunshine days in May: 8.7 days
The month with the most sunshine days is January (12.3 days).
The month with the least sunshine days is November (6.2 days).
Average UV index in May
Waipahu, HI
- Average UV index in May: 6
The month with the highest UV index is September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 6).
Average cloud cover in May
Waipahu, HI
- Average cloud cover in May: 40
The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is January (Cloud cover 36).
Average visibility in May
Waipahu, 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).
Waipahu, Hawaii, USA
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