Average Weather in January in Waimea Hawaii, United States
Daily high temperatures are around 79°F, rarely falling below 75°F or exceeding 82°F. The lowest daily average high temperature is 78°F on January 30.
Daily low temperatures are around 67°F, rarely falling below 61°F or exceeding 71°F. The lowest daily average low temperature is 66°F on January 31.
For reference, on September 17, the hottest day of the year, temperatures in Waimea typically range from 74°F to 85°F, while on January 31, the coldest day of the year, they range from 66°F to 78°F.
Average High and Low Temperature in January
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
The month of January in Waimea experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 21% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 20% on January 17.
The clearest day of the month is January 17, with clear, mostly clear, or partly cloudy conditions 80% of the time.
For reference, on October 13, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 42%, while on January 17, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 80%.
Cloud Cover Categories in January
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 Waimea, the chance of a wet day over the course of January is essentially constant, remaining around 27% throughout.
For reference, the year's highest daily chance of a wet day is 29% on December 24, and its lowest chance is 8% on June 4.
Probability of Precipitation in January
The average sliding 31-day rainfall during January in Waimea is essentially constant, remaining about 4.4 inches throughout, and rarely exceeding 13.7 inches or falling below 0.1 inches.
The highest average 31-day accumulation is 4.5 inches on January 14.
Average Monthly Rainfall in January
Over the course of January in Waimea, the length of the day is gradually increasing. From the start to the end of the month, the length of the day increases by 21 minutes, implying an average daily increase of 42 seconds, and weekly increase of 4 minutes, 52 seconds.
The shortest day of the month is January 1, with 10 hours, 49 minutes of daylight and the longest day is January 31, with 11 hours, 10 minutes of daylight.
Hours of Daylight and Twilight in January
The latest sunrise of the month in Waimea is 7:19 AM on January 15 and the earliest sunrise is 2 minutes, 50 seconds earlier at 7:17 AM on January 31.
The earliest sunset is 6:07 PM on January 1 and the latest sunset is 20 minutes later at 6:27 PM on January 31.
Daylight saving time is not observed in Waimea during 2018.
For reference, on June 21, the longest day of the year, the Sun rises at 5:56 AM and sets 13 hours, 29 minutes later, at 7:24 PM, while on December 21, the shortest day of the year, it rises at 7:13 AM and sets 10 hours, 48 minutes later, at 6:00 PM.
Sunrise & Sunset with Twilight in January
The chance that a given day will be muggy in Waimea is decreasing during January, falling from 33% to 24% over the course of the month.
For reference, on October 2, the muggiest day of the year, there are muggy conditions 77% of the time, while on March 9, the least muggy day of the year, there are muggy conditions 20% of the time.
Humidity Comfort Levels in January
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Waimea is essentially constant during January, remaining within 0.1 miles per hour of 12.9 miles per hour throughout.
For reference, on July 3, the windiest day of the year, the daily average wind speed is 16.0 miles per hour, while on January 4, the calmest day of the year, the daily average wind speed is 12.8 miles per hour.
The lowest daily average wind speed during January is 12.8 miles per hour on January 5.
Average Wind Speed in January
Wind Direction in January
Waimea 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 Waimea is essentially constant during January, remaining within 1°F of 76°F throughout.
Average Water Temperature in January
Temperatures in Waimea 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
The average accumulated growing degree days in Waimea are rapidly increasing during January, increasing by 665°F, from 1°F to 666°F, over the course of the month.
Growing Degree Days in January
The average daily incident shortwave solar energy in Waimea is gradually increasing during January, rising by 0.5 kWh, from 4.3 kWh to 4.9 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in January
For the purposes of this report, the geographical coordinates of Waimea are 21.957 deg latitude, -159.669 deg longitude, and 46 ft elevation.
The topography within 2 miles of Waimea contains very significant variations in elevation, with a maximum elevation change of 1,007 feet and an average elevation above sea level of 146 feet. Within 10 miles contains very significant variations in elevation (4,196 feet). Within 50 miles also contains extreme variations in elevation (5,240 feet).
The area within 2 miles of Waimea is covered by water (31%), shrubs (23%), cropland (19%), and grassland (18%), within 10 miles by water (45%) and shrubs (18%), and within 50 miles by water (92%).
This report illustrates the typical weather in Waimea 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Waimea.
For each station, the records are corrected for the elevation difference between that station and Waimea 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 Waimea is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Waimea and a given station.
The stations contributing to this reconstruction are: Kekaha, Pacific Missile Test Facility Barking Sands (78%, 14 kilometers, northwest) and Lihue Airport (22%, 34 kilometers, east).
Time zones for aiports and weather stations are provided by AskGeo.com .