Average Weather in December in Arenas Spain
Daily high temperatures decrease by 3°F, from 59°F to 56°F, rarely falling below 51°F or exceeding 64°F.
Daily low temperatures decrease by 3°F, from 43°F to 40°F, rarely falling below 32°F or exceeding 50°F.
For reference, on August 5, the hottest day of the year, temperatures in Arenas typically range from 65°F to 87°F, while on January 19, the coldest day of the year, they range from 39°F to 56°F.
Average High and Low Temperature in December
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on December. 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 December
The month of December in Arenas experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 41% throughout the month.
The clearest day of the month is December 1, with clear, mostly clear, or partly cloudy conditions 60% of the time.
For reference, on October 30, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 46%, while on July 20, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 93%.
Cloud Cover Categories in December
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 Arenas, the chance of a wet day over the course of December is essentially constant, remaining around 19% throughout.
For reference, the year's highest daily chance of a wet day is 21% on November 17, and its lowest chance is 0% on July 30.
Probability of Precipitation in December
The average sliding 31-day rainfall during December in Arenas is essentially constant, remaining about 2.1 inches throughout, and rarely exceeding 6.1 inches.
Average Monthly Rainfall in December
Over the course of December in Arenas, the length of the day is essentially constant. The shortest day of the month is December 21, with 9 hours, 38 minutes of daylight and the longest day is December 1, with 9 hours, 50 minutes of daylight.
Hours of Daylight and Twilight in December
The earliest sunrise of the month in Arenas is 8:10 AM on December 1 and the latest sunrise is 18 minutes later at 8:28 AM on December 31.
The earliest sunset is 5:59 PM on December 6 and the latest sunset is 10 minutes later at 6:09 PM on December 31.
Daylight saving time is observed in Arenas during 2021, but it neither starts nor ends during December, so the entire month is in standard time.
For reference, on June 21, the longest day of the year, the Sun rises at 6:57 AM and sets 14 hours, 41 minutes later, at 9:38 PM, while on December 21, the shortest day of the year, it rises at 8:25 AM and sets 9 hours, 38 minutes later, at 6:03 PM.
Sunrise & Sunset with Twilight in December
The figure below presents a compact representation of key lunar data for December 2021. 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 December
The chance that a given day will be muggy in Arenas is essentially constant during December, remaining around 0% throughout.
For reference, on August 18, the muggiest day of the year, there are muggy conditions 19% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in December
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Arenas is essentially constant during December, remaining within 0.2 miles per hour of 9.0 miles per hour throughout.
For reference, on February 21, the windiest day of the year, the daily average wind speed is 9.7 miles per hour, while on August 26, the calmest day of the year, the daily average wind speed is 6.6 miles per hour.
Average Wind Speed in December
The hourly average wind direction in Arenas throughout December is predominantly from the east, with a peak proportion of 39% on December 17.
Wind Direction in December
Arenas 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 Arenas is essentially constant during December, remaining within 1°F of 61°F throughout.
Average Water Temperature in December
The growing season in Arenas typically lasts for 11 months (324 days), from around February 4 to around December 25, rarely starting after March 5, or ending before November 25.
During December in Arenas, the chance that a given day is within the growing season is rapidly decreasing falling from 85% to 41% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in December
The average accumulated growing degree days in Arenas are gradually increasing during December, increasing by 68°F, from 4,198°F to 4,266°F, over the course of the month.
Growing Degree Days in December
The average daily incident shortwave solar energy in Arenas is essentially constant during December, remaining within 0.1 kWh of 2.6 kWh throughout.
The lowest average daily incident shortwave solar energy during December is 2.5 kWh on December 18.
Average Daily Incident Shortwave Solar Energy in December
For the purposes of this report, the geographical coordinates of Arenas are 36.816 deg latitude, -4.044 deg longitude, and 1,362 ft elevation.
The topography within 2 miles of Arenas contains very significant variations in elevation, with a maximum elevation change of 1,736 feet and an average elevation above sea level of 1,477 feet. Within 10 miles contains very significant variations in elevation (6,788 feet). Within 50 miles also contains extreme variations in elevation (11,375 feet).
The area within 2 miles of Arenas is covered by cropland (66%) and trees (27%), within 10 miles by cropland (42%) and trees (23%), and within 50 miles by water (38%) and cropland (36%).
This report illustrates the typical weather in Arenas, 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 Arenas.
For each station, the records are corrected for the elevation difference between that station and Arenas 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 Arenas is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Arenas and a given station.
Time zones for airports and weather stations are provided by AskGeo.com .