June weather forecastWaipahu, HI
June
Weather in June
June in Waipahu, Hawaii brings with it an increase in temperatures, peaking at an average high of 79.7°F (26.5°C). This month also marks the year's peak in terms of daylight hours, offering a generous 13.4 hours of light to the city's residents and visitors. The shift to summer is now noticeable with a decrease in the frequency of rainfall and a dip in relative humidity. June is considered the sunniest month, ideal for those looking to soak up some rays at the beach. Interestingly, wind speeds tend to increase during June, with the top speed reaching up to 14.7mph (23.7km/h), offering some respite from the warm days.Temperature
The initiation of June in Waipahu records an average high-temperature of a still moderately hot 79.7°F (26.5°C), displaying a near consistency with the previous month. A mild drop to an average of 73.4°F (23°C) marks the nights during June.Humidity
The months with the lowest humidity are April through June and September, with an average relative humidity of 74%.Rainfall
In Waipahu, in June, it is raining for 16.3 days, with typically 1.06" (27mm) of accumulated precipitation. In Waipahu, during the entire year, the rain falls for 208.4 days and collects up to 16.5" (419mm) of precipitation.Ocean temperature
In Waipahu, the average seawater temperature in June is 79.2°F (26.2°C).Note: For swimming, diving, and similar activities, the water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered delightful, allowing for extended periods of enjoyment without discomfort.
Daylight
June has the longest days of the year, with an average of 13h and 24min of daylight.On the first day of the month, sunrise is at 5:49 am and sunset at 7:10 pm. On the last day of June, sunrise is at 5:53 am and sunset at 7:18 pm HST.
Sunshine
With an average of 9.9h of sunshine, June has the most sunshine of the year.UV index
January through August, October through December, with an average maximum UV index of 6, are months with the lowest UV index in Waipahu. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In June, the average maximum UV index of 6 translates into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Heed this! UV intensity is much stronger when reflected off sand and water.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Waipahu, HI
- Average high temperature in June: 79.7°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 June: 73.4°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 June
Waipahu, HI
- Average pressure in June: 30.03"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 June
Waipahu, HI
- Average wind speed in June: 11.1mph
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 June
Waipahu, HI
- Average humidity in June: 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 June
Waipahu, HI
- Average rainfall in June: 1.06"
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 June
Waipahu, HI
- Average rainfall days in June: 16.3 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 June
Waipahu, HI
- Average sea temperature in June: 79.1°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 June /
Average sunshine in June
Waipahu, HI
- Average daylight in June: 13h and 24min
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 June: 9h and 54min
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 June
Waipahu, HI
- Average sunshine days in June: 9.9 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 June
Waipahu, HI
- Average UV index in June: 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 June
Waipahu, HI
- Average cloud cover in June: 41
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 June
Waipahu, HI
- Average visibility in June: 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).





