Average Weather in Pepeekeo Hawaii, United States
The climate in Pepeekeo is warm, muggy, windy, and partly cloudy. Over the course of the year, the temperature typically varies from 63°F to 82°F and is rarely below 60°F or above 84°F.
Based on the tourism score, the best times of year to visit Pepeekeo for warm-weather activities are from early April to mid October and from early November to early April.
The temperature in Pepeekeo varies so little throughout the year that it is not entirely meaningful to discuss hot and cold seasons.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, 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 Pepeekeo, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.
The clearer part of the year in Pepeekeo begins around May 18 and lasts for 4.1 months, ending around September 21. On August 8, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 77% of the time, and overcast or mostly cloudy 23% of the time.
The cloudier part of the year begins around September 21 and lasts for 7.9 months, ending around May 18. On October 30, the cloudiest day of the year, the sky is overcast or mostly cloudy 46% of the time, and clear, mostly clear, or partly cloudy 54% of the time.
Cloud Cover Categories
Pepeekeo does not experience significant seasonal variation in the frequency of wet days (i.e., those with greater than 0.04 inches of liquid or liquid-equivalent precipitation). The frequency ranges from 23% to 32%, with an average value of 27%.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 32% on April 7.
Daily Chance of Precipitation
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Pepeekeo experiences extreme seasonal variation in monthly rainfall.
Rain falls throughout the year in Pepeekeo. The most rain falls during the 31 days centered around April 12, with an average total accumulation of 6.8 inches.
The least rain falls around June 6, with an average total accumulation of 1.8 inches.
Average Monthly Rainfall
The length of the day in Pepeekeo varies over the course of the year. In 2018, the shortest day is December 21, with 10 hours, 56 minutes of daylight; the longest day is June 21, with 13 hours, 20 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:40 AM on June 6, and the latest sunrise is 1 hour, 17 minutes later at 6:58 AM on January 17. The earliest sunset is at 5:39 PM on November 25, and the latest sunset is 1 hour, 24 minutes later at 7:03 PM on July 4.
Daylight saving time (DST) is not observed in Pepeekeo during 2018.
Sunrise & Sunset with Twilight
Pepeekeo experiences extreme seasonal variation in the perceived humidity.
The muggier period of the year lasts for 8.3 months, from April 15 to December 23, during which time the comfort level is muggy, oppressive, or miserable at least 43% of the time. The muggiest day of the year is August 14, with muggy conditions 89% of the time.
The least muggy day of the year is January 30, with muggy conditions 27% of the time.
Humidity Comfort Levels
The average hourly wind speed in Pepeekeo experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 2.2 months, from March 8 to May 13, with average wind speeds of more than 11.7 miles per hour. The windiest day of the year is April 7, with an average hourly wind speed of 12.9 miles per hour.
The calmer time of year lasts for 9.8 months, from May 13 to March 8. The calmest day of the year is January 16, with an average hourly wind speed of 10.5 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Pepeekeo is from the east throughout the year.
Pepeekeo 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 water temperature experiences some seasonal variation over the course of the year.
The time of year with warmer water lasts for 3.2 months, from July 31 to November 5, with an average temperature above 79°F. The day of the year with the warmest water is September 10, with an average temperature of 80°F.
The time of year with cooler water lasts for 4.0 months, from January 7 to May 9, with an average temperature below 76°F. The day of the year with the coolest water is February 25, with an average temperature of 75°F.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is in Pepeekeo throughout the year, we compute two travel scores.
The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best times of year to visit Pepeekeo for general outdoor tourist activities are from early April to mid October and from early November to early April, with a peak score in the last week of July.
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Pepeekeo for hot-weather activities is from late June to late September, with a peak score in the first week of August.
For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.
Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.
Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.
Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.
Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.
Temperatures in Pepeekeo 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
Growing Degree Days
The average daily incident shortwave solar energy experiences some seasonal variation over the course of the year.
The brighter period of the year lasts for 4.8 months, from April 16 to September 8, with an average daily incident shortwave energy per square meter above 6.8 kWh. The brightest day of the year is June 19, with an average of 7.4 kWh.
The darker period of the year lasts for 2.7 months, from November 6 to January 28, with an average daily incident shortwave energy per square meter below 5.0 kWh. The darkest day of the year is December 6, with an average of 4.4 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Pepeekeo are 19.834 deg latitude, -155.107 deg longitude, and 449 ft elevation.
The topography within 2 miles of Pepeekeo contains very significant variations in elevation, with a maximum elevation change of 1,191 feet and an average elevation above sea level of 524 feet. Within 10 miles contains very significant variations in elevation (4,393 feet). Within 50 miles also contains extreme variations in elevation (13,816 feet).
The area within 2 miles of Pepeekeo is covered by cropland (65%), artificial surfaces (20%), and trees (10%), within 10 miles by water (46%) and trees (33%), and within 50 miles by water (62%) and shrubs (11%).
This report illustrates the typical weather in Pepeekeo, 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Pepeekeo.
For each station, the records are corrected for the elevation difference between that station and Pepeekeo 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 Pepeekeo is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Pepeekeo and a given station.
Time zones for aiports and weather stations are provided by AskGeo.com .