Average Weather in June in Ko Olina Hawaii, United States
Daily high temperatures are around 86°F, rarely falling below 83°F or exceeding 90°F.
Daily low temperatures are around 71°F, rarely falling below 67°F or exceeding 75°F.
For reference, on August 21, the hottest day of the year, temperatures in Ko Olina typically range from 73°F to 88°F, while on January 28, the coldest day of the year, they range from 66°F to 80°F.
Average High and Low Temperature in June
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on June. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature in June
The month of June in Ko Olina experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 27% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 25% on June 19.
The clearest day of the month is June 19, with clear, mostly clear, or partly cloudy conditions 75% of the time.
For reference, on October 31, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 42%, while on January 18, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 78%.
Cloud Cover Categories in June
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Ko Olina, the chance of a wet day over the course of June is essentially constant, remaining around 8% throughout.
For reference, the year's highest daily chance of a wet day is 25% on January 11, and its lowest chance is 7% on June 20.
Probability of Precipitation in June
The average sliding 31-day rainfall during June in Ko Olina is essentially constant, remaining about 0.4 inches throughout, and rarely exceeding 1.2 inches.
The lowest average 31-day accumulation is 0.4 inches on June 12.
Average Monthly Rainfall in June
Over the course of June in Ko Olina, the length of the day is essentially constant. The shortest day of the month is June 1, with 13 hours, 21 minutes of daylight and the longest day is June 20, with 13 hours, 26 minutes of daylight.
Hours of Daylight and Twilight in June
The earliest sunrise of the month in Ko Olina is 5:49 AM on June 6 and the latest sunrise is 4 minutes later at 5:53 AM on June 30.
The earliest sunset is 7:11 PM on June 1 and the latest sunset is 8 minutes later at 7:18 PM on June 30.
Daylight saving time is not observed in Ko Olina during 2018.
For reference, on June 21, the longest day of the year, the Sun rises at 5:51 AM and sets 13 hours, 26 minutes later, at 7:17 PM, while on December 21, the shortest day of the year, it rises at 7:05 AM and sets 10 hours, 50 minutes later, at 5:55 PM.
Sunrise & Sunset with Twilight in June
The chance that a given day will be muggy in Ko Olina is increasing during June, rising from 38% to 46% over the course of the month.
For reference, on October 10, the muggiest day of the year, there are muggy conditions 68% of the time, while on April 1, the least muggy day of the year, there are muggy conditions 19% of the time.
Humidity Comfort Levels in June
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Ko Olina is rapidly increasing during June, increasing from 14.3 miles per hour to 16.3 miles per hour over the course of the month.
For reference, on July 3, the windiest day of the year, the daily average wind speed is 16.4 miles per hour, while on January 10, the calmest day of the year, the daily average wind speed is 12.2 miles per hour.
Average Wind Speed in June
Wind Direction in June
Ko Olina is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.
The average surface water temperature in Ko Olina is essentially constant during June, remaining around 78°F throughout.
Average Water Temperature in June
Temperatures in Ko Olina are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.
Time Spent in Various Temperature Bands and the Growing Season in June
The average accumulated growing degree days in Ko Olina are rapidly increasing during June, increasing by 817°F, from 3,596°F to 4,414°F, over the course of the month.
Growing Degree Days in June
The average daily incident shortwave solar energy in Ko Olina is essentially constant during June, remaining around 7.6 kWh throughout.
The highest average daily incident shortwave solar energy during June is 7.6 kWh on June 10.
Average Daily Incident Shortwave Solar Energy in June
For the purposes of this report, the geographical coordinates of Ko Olina are 21.340 deg latitude, -158.126 deg longitude, and 13 ft elevation.
The topography within 2 miles of Ko Olina contains very significant variations in elevation, with a maximum elevation change of 1,083 feet and an average elevation above sea level of 124 feet. Within 10 miles contains very significant variations in elevation (3,196 feet). Within 50 miles contains large variations in elevation (4,098 feet).
The area within 2 miles of Ko Olina is covered by water (39%), shrubs (30%), artificial surfaces (16%), and grassland (15%), within 10 miles by water (59%) and artificial surfaces (15%), and within 50 miles by water (92%).
This report illustrates the typical weather in Ko Olina year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Ko Olina.
For each station, the records are corrected for the elevation difference between that station and Ko Olina according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Ko Olina is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Ko Olina and a given station.
The stations contributing to this reconstruction are: Kalaeloa Airport (John Rodgers Field) (47%, 7 kilometers, southeast); Kalaeloa Airport (47%, 7 kilometers, southeast); Wheeler Army Airfield (4.6%, 19 kilometers, northeast); and Lihue Airport (0.5%, 145 kilometers, northwest).
Time zones for aiports and weather stations are provided by AskGeo.com .