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Average Weather in Honoka‘a Hawaii, United States

The climate in Honoka‘a is warm, humid, windy, and partly cloudy. Over the course of the year, the temperature typically varies from 61°F to 83°F and is rarely below 58°F or above 85°F.

Based on the tourism score, the best times of year to visit Honoka‘a for warm-weather activities are from mid April to mid October and from early November to mid March.

Climate Summary

warmJanFebMarAprMayJunJulAugSepOctNovDec77%77%55%55%clearovercastprecipitation: 5.0 inprecipitation: 5.0 in1.3 in1.3 inmuggy: 78%muggy: 78%14%14%tourism score: 8.0tourism score: 8.07.17.1
Click on each chart for more information.

Temperature

The temperature in Honoka‘a varies so little throughout the year that it is not entirely meaningful to discuss hot and cold seasons.

Average High and Low Temperature

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

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

Average Hourly Temperature in Honoka‘aJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMcoolcoolcomfortablecomfortablewarm
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < very cold < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The shaded overlays indicate night and civil twilight.

Zaruma, Ecuador (5,399 miles away) and Adjuntas, Puerto Rico (5,722 miles) are the far-away foreign places with temperatures most similar to Honoka‘a (view comparison).

Clouds

In Honoka‘a, 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 Honoka‘a begins around May 14 and lasts for 4.2 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 7.8 months, ending around May 14. On October 30, the cloudiest day of the year, the sky is overcast or mostly cloudy 45% of the time, and clear, mostly clear, or partly cloudy 55% of the time.

Cloud Cover Categories

Cloud Cover Categories in Honoka‘aclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Aug 877%Aug 877%Oct 3055%Oct 3055%May 1466%May 1466%Sep 2166%Sep 2166%clearmostly clearpartly cloudyovercastmostly cloudy
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Honoka‘a varies throughout the year.

The wetter season lasts 5.6 months, from November 16 to May 3, with a greater than 24% chance of a given day being a wet day. The chance of a wet day peaks at 30% on March 24.

The drier season lasts 6.4 months, from May 3 to November 16. The smallest chance of a wet day is 19% on May 28.

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 30% on March 24.

Daily Chance of Precipitation

Daily Chance of Precipitation in Honoka‘awetwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Mar 2430%Mar 2430%May 2819%May 2819%Jan 126%Jan 126%Nov 1624%Nov 1624%rain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

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. Honoka‘a experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year in Honoka‘a. The most rain falls during the 31 days centered around April 12, with an average total accumulation of 5.0 inches.

The least rain falls around June 6, with an average total accumulation of 1.3 inches.

Average Monthly Rainfall

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.

Sun

The length of the day in Honoka‘a varies over the course of the year. In 2018, the shortest day is December 21, with 10 hours, 55 minutes of daylight; the longest day is June 21, with 13 hours, 21 minutes of daylight.

Hours of Daylight and Twilight

Hours of Daylight and Twilight in Honoka‘aJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 6 minMar 2012 hr, 6 minMar 2013 hr, 21 minJun 2113 hr, 21 minJun 2112 hr, 7 minSep 2212 hr, 7 minSep 2210 hr, 55 minDec 2110 hr, 55 minDec 21nightnightday
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise is at 5:41 AM on June 5, and the latest sunrise is 1 hour, 18 minutes later at 6:59 AM on January 17. The earliest sunset is at 5:40 PM on November 25, and the latest sunset is 1 hour, 25 minutes later at 7:05 PM on July 5.

Daylight saving time (DST) is not observed in Honoka‘a during 2018.

Sunrise & Sunset with Twilight

Sunrise & Sunset with Twilight in Honoka‘aJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 55:41 AMJun 55:41 AM7:05 PMJul 57:05 PMJul 5Nov 255:40 PMNov 255:40 PM6:59 AMJan 176:59 AMJan 17daynightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of the year 2018. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

Humidity

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

Honoka‘a experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 7.1 months, from May 6 to December 10, during which time the comfort level is muggy, oppressive, or miserable at least 30% of the time. The muggiest day of the year is August 13, with muggy conditions 78% of the time.

The least muggy day of the year is February 17, with muggy conditions 14% of the time.

Humidity Comfort Levels

Humidity Comfort Levels in Honoka‘amuggyJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Feb 1714%Feb 1714%78%Aug 1378%Aug 13May 630%May 630%Dec 1030%Dec 1030%oppressiveoppressivemuggymuggyhumidhumidcomfortablecomfortabledrydry
The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

Wind

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Honoka‘a experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 6.5 months, from March 10 to September 26, with average wind speeds of more than 11.6 miles per hour. The windiest day of the year is June 25, with an average hourly wind speed of 13.4 miles per hour.

The calmer time of year lasts for 5.5 months, from September 26 to March 10. The calmest day of the year is January 16, with an average hourly wind speed of 9.7 miles per hour.

Average Wind Speed

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction in Honoka‘a is from the east throughout the year.

Wind Direction

Wind Direction in Honoka‘aJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%eastnorthwestsouth
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Water Temperature

Honoka‘a 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 6, 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 8 to May 9, with an average temperature below 76°F. The day of the year with the coolest water is February 28, with an average temperature of 75°F.

Average Water Temperature

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Best Time of Year to Visit

To characterize how pleasant the weather is in Honoka‘a 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 Honoka‘a for general outdoor tourist activities are from mid April to mid October and from early November to mid March, with a peak score in the last week of July.

Tourism Score

Tourism Score in Honoka‘abest timebest timebest timeJanFebMarAprMayJunJulAugSepOctNovDec02468108.08.07.17.1 precipitationprecipitationcloudscloudstemperaturetemperaturetourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

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 Honoka‘a for hot-weather activities is from early July to mid September, with a peak score in the first week of August.

Beach/Pool Score

Beach/Pool Score in Honoka‘abest timeJanFebMarAprMayJunJulAugSepOctNovDec02468106.26.22.42.4 precipitationprecipitationcloudscloudstemperaturetemperaturebeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

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.

Growing Season

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Temperatures in Honoka‘a 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

Time Spent in Various Temperature Bands and the Growing Season in Honoka‘aJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%100%Jan 1100%Jan 1100%Jul 3100%Jul 3coolcomfortablewarm
The percentage of time spent in various temperature bands: frigid < 15°F < freezing < 32°F < very cold < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Growing Degree Days

Growing Degree Days in Honoka‘aJanFebMarAprMayJunJulAugSepOctNovDec0°F1,000°F2,000°F3,000°F4,000°F5,000°F6,000°F7,000°F8,000°FJan 690°FJan 690°FApr 81,800°FApr 81,800°FDec 317,747°FDec 317,747°F
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

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 4.6 months, from April 16 to September 5, 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 5 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 17, with an average of 4.4 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy in Honoka‘abrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWh9 kWhJun 197.4 kWhJun 197.4 kWhDec 174.4 kWhDec 174.4 kWhApr 166.8 kWhApr 166.8 kWhSep 56.8 kWhSep 56.8 kWhJan 285.0 kWhJan 285.0 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Honoka‘a are 20.079 deg latitude, -155.467 deg longitude, and 1,047 ft elevation.

The topography within 2 miles of Honoka‘a contains large variations in elevation, with a maximum elevation change of 2,175 feet and an average elevation above sea level of 1,031 feet. Within 10 miles contains large variations in elevation (5,653 feet). Within 50 miles also contains extreme variations in elevation (13,819 feet).

The area within 2 miles of Honoka‘a is covered by trees (48%), shrubs (19%), and artificial surfaces (15%), within 10 miles by water (44%) and cropland (21%), and within 50 miles by water (64%) and shrubs (11%).

Data Sources

This report illustrates the typical weather in Honoka‘a, 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Honoka‘a.

For each station, the records are corrected for the elevation difference between that station and Honoka‘a 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 Honoka‘a is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Honoka‘a and a given station.

The stations contributing to this reconstruction are: Bradshaw Army Airfield (18%, 37 kilometers, south); Hilo International Airport (62%, 59 kilometers, southeast); and Kahului Airport (20%, 136 kilometers, northwest).

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.