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January Weather in Hōlualoa Hawaii, United States

Daily high temperatures are around 77°F, rarely falling below 75°F or exceeding 79°F.

Daily low temperatures are around 63°F, rarely falling below 59°F or exceeding 67°F. The lowest daily average low temperature is 63°F on January 21.

For reference, on August 11, the hottest day of the year, temperatures in Hōlualoa typically range from 70°F to 83°F, while on January 20, the coldest day of the year, they range from 63°F to 77°F.

Average High and Low Temperature in January in Hōlualoa

Average High and Low Temperature in January in HōlualoaJan112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313158°F58°F60°F60°F62°F62°F64°F64°F66°F66°F68°F68°F70°F70°F72°F72°F74°F74°F76°F76°F78°F78°F80°F80°F82°F82°FDecFebJan 177°FJan 177°F63°F63°FJan 3177°FJan 3177°F63°F63°FJan 1177°FJan 1177°F63°F63°FJan 2177°FJan 2177°F63°F63°F
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 hourly average temperatures for the quarter of the year centered on January. 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 January in Hōlualoa

Average Hourly Temperature in January in HōlualoaJan112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMDecFebcoolcomfortablecomfortablewarm
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 average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Aibonito, Puerto Rico (5,790 miles away) is the far-away foreign place with temperatures most similar to Hōlualoa (view comparison).

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The month of January in Hōlualoa experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 28% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 27% on January 18.

The clearest day of the month is January 18, with clear, mostly clear, or partly cloudy conditions 73% of the time.

For reference, on October 14, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 53%, while on January 18, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 73%.

Cloud Cover Categories in January in Hōlualoa

Cloud Cover Categories in January in HōlualoaJan11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%DecFebOct 1447%Oct 1447%Jan 170%Jan 170%Jan 3172%Jan 3172%Jan 1171%Jan 1171%Jan 2173%Jan 2173%clearmostly clearpartly cloudymostly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Hōlualoa, the chance of a wet day over the course of January is gradually decreasing, starting the month at 27% and ending it at 25%.

For reference, the year's highest daily chance of a wet day is 31% on March 17, and its lowest chance is 17% on September 9.

Probability of Precipitation in January in Hōlualoa

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 month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during January in Hōlualoa is gradually decreasing, starting the month at 3.4 inches, when it rarely exceeds 8.8 inches or falls below 0.3 inches, and ending the month at 3.0 inches, when it rarely exceeds 6.4 inches or falls below 0.3 inches.

Average Monthly Rainfall in January in Hōlualoa

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 snowfall.

Over the course of January in Hōlualoa, the length of the day is gradually increasing. From the start to the end of the month, the length of the day increases by 18 minutes, implying an average daily increase of 36 seconds, and weekly increase of 4 minutes, 12 seconds.

The shortest day of the month is January 1, with 10 hours, 58 minutes of daylight and the longest day is January 31, with 11 hours, 16 minutes of daylight.

Hours of Daylight and Twilight in January in Hōlualoa

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 of the month in Hōlualoa is 6:58 AM on January 1 and the latest sunrise is 2 minutes, 52 seconds later at 7:01 AM on January 17.

The earliest sunset is 5:56 PM on January 1 and the latest sunset is 19 minutes later at 6:15 PM on January 31.

Daylight saving time is not observed in Hōlualoa during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:46 AM and sets 13 hours, 19 minutes later, at 7:05 PM, while on December 21, the shortest day of the year, it rises at 6:53 AM and sets 10 hours, 57 minutes later, at 5:50 PM.

Sunrise & Sunset with Twilight in January in Hōlualoa

Sunrise & Sunset with Twilight in January in HōlualoaJan11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031312 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMDecFeb6:58 AM6:58 AMJan 15:56 PMJan 15:56 PM6:59 AM6:59 AMJan 316:15 PMJan 316:15 PM7:01 AM7:01 AMJan 176:06 PMJan 176:06 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of January. 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.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in January in Hōlualoa

Solar Elevation and Azimuth in January in HōlualoaJan112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMDecFeb00101020202030304040500001010202030303040405060
northeastsouthwest
Solar elevation and azimuth over the course of January 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for January 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

Moon Rise, Set & Phases in January in Hōlualoa

Moon Rise, Set & Phases in January in HōlualoaJan112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMDecFebDec 121:33 PMDec 121:33 PMDec 262:34 PMDec 262:34 PMJan 111:58 AMJan 111:58 AMJan 257:55 AMJan 257:55 AMFeb 91:00 PMFeb 91:00 PMFeb 242:31 AMFeb 242:31 AM6:41 AM6:41 AM5:43 PM5:43 PM5:48 PM5:48 PM7:46 AM7:46 AM7:29 AM7:29 AM6:38 PM6:38 PM5:33 PM5:33 PM7:15 AM7:15 AM6:59 AM6:59 AM6:30 PM6:30 PM6:06 PM6:06 PM7:06 AM7:06 AM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.
Jan 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
73%-11:05 AMW11:05 PME4:43 AMS251,600 mi
2
64%-11:36 AMW11:53 PME5:22 AMS251,224 mi
3
50%-12:07 PMW-6:00 AMS250,022 mi
4
45%12:41 AME12:38 PMW-6:40 AMS248,004 mi
5
35%1:31 AMESE1:13 PMWSW-7:22 AMS245,252 mi
6
25%2:24 AMESE1:51 PMWSW-8:07 AMS241,921 mi
7
17%3:21 AMESE2:35 PMWSW-8:57 AMS238,239 mi
8
9%4:21 AMESE3:26 PMWSW-9:53 AMS234,497 mi
9
4%5:25 AMESE4:25 PMWSW-10:55 AMS231,028 mi
10
0%6:29 AMESE5:30 PMWSW-12:00 PMS228,160 mi
11
0%7:29 AMESE6:38 PMWSW-1:04 PMS226,164 mi
12
3%8:23 AMESE7:46 PMWSW-2:05 PMS225,194 mi
13
9%9:12 AMESE8:51 PMWSW-3:02 PMS225,269 mi
14
17%9:55 AMESE9:53 PMW-3:54 PMS226,280 mi
15
27%10:35 AME10:53 PMW-4:43 PMS228,034 mi
16
39%11:13 AME11:51 PMW-5:30 PMS230,298 mi
17
50%11:51 AME--6:18 PMS232,849 mi
18
62%-12:49 AMWNW12:30 PMENE7:06 PMS235,496 mi
19
72%-1:47 AMWNW1:12 PMENE7:57 PMN238,104 mi
20
81%-2:46 AMWNW1:57 PMENE8:50 PMN240,589 mi
21
89%-3:46 AMWNW2:47 PMENE9:45 PMN242,909 mi
22
95%-4:44 AMWNW3:41 PMENE10:40 PMN245,045 mi
23
98%-5:39 AMWNW4:37 PMENE11:35 PMN246,982 mi
24
99%-6:30 AMWNW5:33 PMENE--
25
100%-7:15 AMWNW6:28 PMENE12:26 AMN248,698 mi
26
100%-7:56 AMWNW7:21 PMENE1:14 AMN250,148 mi
27
97%-8:32 AMWNW8:11 PMENE1:58 AMS251,264 mi
28
93%-9:05 AMW8:59 PME2:40 AMS251,957 mi
29
87%-9:36 AMW9:47 PME3:19 AMS252,126 mi
30
80%-10:06 AMW10:34 PME3:57 AMS251,675 mi
31
72%-10:37 AMW11:23 PME4:36 AMS250,524 mi

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.

The chance that a given day will be muggy in Hōlualoa is essentially constant during January, remaining within 1% of 12% throughout.

For reference, on August 11, the muggiest day of the year, there are muggy conditions 70% of the time, while on March 7, the least muggy day of the year, there are muggy conditions 11% of the time.

Humidity Comfort Levels in January in Hōlualoa

Humidity Comfort Levels in January in HōlualoaJan11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%DecFebJan 113%Jan 113%Jan 3112%Jan 3112%Jan 1112%Jan 1112%Jan 2111%Jan 2111%muggymuggyhumidhumidcomfortablecomfortabledrydry
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

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 Hōlualoa is essentially constant during January, remaining within 0.1 miles per hour of 6.4 miles per hour throughout.

For reference, on December 4, the windiest day of the year, the daily average wind speed is 6.9 miles per hour, while on September 17, the calmest day of the year, the daily average wind speed is 4.1 miles per hour.

The lowest daily average wind speed during January is 6.3 miles per hour on January 4.

Average Wind Speed in January in Hōlualoa

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

The hourly average wind direction in Hōlualoa throughout January is predominantly from the east, with a peak proportion of 38% on January 1.

Wind Direction in January in Hōlualoa

Wind Direction in January in HōlualoaJan11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%DecFebwestsoutheastnorth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Hōlualoa 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 Hōlualoa is essentially constant during January, remaining around 77°F throughout.

Average Water Temperature in January in Hōlualoa

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

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 Hōlualoa 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 January in Hōlualoa

Time Spent in Various Temperature Bands and the Growing Season in January in HōlualoaJan11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%DecFeb100%Jan 16100%Jan 16coolcomfortablewarm
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 percentage of time spent in various temperature bands. 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.

The average accumulated growing degree days in Hōlualoa are rapidly increasing during January, increasing by 592°F, from 20°F to 613°F, over the course of the month.

Growing Degree Days in January in Hōlualoa

The average growing degree days accumulated over the course of January, with 25th to 75th and 10th to 90th percentile bands.

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 in Hōlualoa is gradually increasing during January, rising by 0.5 kWh, from 4.6 kWh to 5.1 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in January in Hōlualoa

Average Daily Incident Shortwave Solar Energy in January in HōlualoaJan11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWhDecFebJan 14.6 kWhJan 14.6 kWhJan 315.1 kWhJan 315.1 kWhJan 114.7 kWhJan 114.7 kWhJan 214.9 kWhJan 214.9 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.

For the purposes of this report, the geographical coordinates of Hōlualoa are 19.620 deg latitude, -155.948 deg longitude, and 1,414 ft elevation.

The topography within 2 miles of Hōlualoa contains large variations in elevation, with a maximum elevation change of 2,776 feet and an average elevation above sea level of 1,401 feet. Within 10 miles contains large variations in elevation (8,225 feet). Within 50 miles also contains extreme variations in elevation (13,819 feet).

The area within 2 miles of Hōlualoa is covered by artificial surfaces (34%), trees (31%), shrubs (21%), and grassland (14%), within 10 miles by water (31%) and shrubs (31%), and within 50 miles by water (57%) and shrubs (14%).

This report illustrates the typical weather in Hōlualoa, 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 Hōlualoa.

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

The stations contributing to this reconstruction are:

To get a sense of how much these sources agree with each other, you can view a comparison of Hōlualoa and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , 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 airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

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.

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