Average Weather in January in Atuona French Polynesia
Daily high temperatures are around 79°F, rarely falling below 78°F or exceeding 81°F.
Daily low temperatures are around 78°F, rarely falling below 76°F or exceeding 80°F.
For reference, on April 7, the hottest day of the year, temperatures in Atuona typically range from 79°F to 80°F, while on September 10, the coldest day of the year, they range from 76°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
Moore Town, Jamaica (4,689 miles away); Soufrière, St. Lucia (5,595 miles); and Malibago, Philippines (6,975 miles) are the far-away foreign places with temperatures most similar to Atuona (view comparison).
The month of January in Atuona experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 46% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 45% on January 20.
The clearest day of the month is January 20, with clear, mostly clear, or partly cloudy conditions 55% of the time.
For reference, on March 31, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 62%, while on August 9, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 80%.
Cloud Cover Categories in January
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Atuona, the chance of a wet day over the course of January is increasing, starting the month at 9% and ending it at 15%.
For reference, the year's highest daily chance of a wet day is 25% on April 1, and its lowest chance is 2% on September 17.
Probability of Precipitation in January
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 Atuona is increasing, starting the month at 1.2 inches, when it rarely exceeds 3.9 inches or falls below -0.0 inches, and ending the month at 1.8 inches, when it rarely exceeds 5.6 inches or falls below -0.0 inches.
The highest average 31-day accumulation is 1.9 inches on January 23.
Average Monthly Rainfall in January
Over the course of January in Atuona, the length of the day is essentially constant. The shortest day of the month is January 31, with 12 hours, 32 minutes of daylight and the longest day is January 1, with 12 hours, 41 minutes of daylight.
Hours of Daylight and Twilight in January
The earliest sunrise of the month in Atuona is 5:29 AM on January 1 and the latest sunrise is 14 minutes later at 5:43 AM on January 31.
The earliest sunset is 6:10 PM on January 1 and the latest sunset is 5 minutes later at 6:15 PM on January 26.
Daylight saving time is not observed in Atuona during 2018.
For reference, on December 21, the longest day of the year, the Sun rises at 5:23 AM and sets 12 hours, 42 minutes later, at 6:05 PM, while on June 21, the shortest day of the year, it rises at 6:01 AM and sets 11 hours, 33 minutes later, at 5:34 PM.
Sunrise & Sunset with Twilight in January
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 Atuona is essentially constant during January, remaining around 100% throughout.
For reference, on January 24, the muggiest day of the year, there are muggy conditions 100% of the time, while on August 18, the least muggy day of the year, there are muggy conditions 98% of the time.
Humidity Comfort Levels in January
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 Atuona is essentially constant during January, remaining within 0.1 miles per hour of 13.7 miles per hour throughout.
For reference, on July 24, the windiest day of the year, the daily average wind speed is 15.2 miles per hour, while on March 27, the calmest day of the year, the daily average wind speed is 12.2 miles per hour.
The highest daily average wind speed during January is 13.8 miles per hour on January 21.
Average Wind Speed in January
Wind Direction in January
Atuona 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 Atuona is essentially constant during January, remaining around 83°F throughout.
Average Water Temperature in January
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 Atuona 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
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 Atuona are rapidly increasing during January, increasing by 857°F, from 5,101°F to 5,958°F, over the course of the month.
Growing Degree Days in January
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 Atuona is essentially constant during January, remaining within 0.1 kWh of 7.0 kWh throughout.
Average Daily Incident Shortwave Solar Energy in January
For the purposes of this report, the geographical coordinates of Atuona are -9.803 deg latitude, -139.042 deg longitude, and 653 ft elevation.
The topography within 2 miles of Atuona contains extreme variations in elevation, with a maximum elevation change of 4,058 feet and an average elevation above sea level of 592 feet. Within 10 miles also contains extreme variations in elevation (4,259 feet). Within 50 miles also contains extreme variations in elevation (4,324 feet).
The area within 2 miles of Atuona is covered by water (100%), within 10 miles by water (100%), and within 50 miles by water (100%).
This report illustrates the typical weather in Atuona year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Atuona is further than 200 kilometers from the nearest reliable weather station, so the weather-related data on this page were taken entirely from NASA's MERRA-2 satellite-era reanalysis . 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.
The temperature and dew point estimates are corrected for the difference between the reference elevation of the MERRA-2 grid cell and the elevation of Atuona, according to the International Standard Atmosphere .
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.
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.
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.