Average Weather in December in Santa María Panama
Daily high temperatures are around 87°F, rarely falling below 83°F or exceeding 90°F.
Daily low temperatures are around 73°F, rarely falling below 70°F or exceeding 75°F.
For reference, on April 3, the hottest day of the year, temperatures in Santa María typically range from 75°F to 95°F, while on January 19, the coldest day of the year, they range from 72°F to 89°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 Santa María experiences very rapidly decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 65% to 47%.
The clearest day of the month is December 31, with clear, mostly clear, or partly cloudy conditions 53% of the time.
For reference, on July 27, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 93%, while on January 3, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 55%.
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 Santa María, the chance of a wet day over the course of December is very rapidly decreasing, starting the month at 34% and ending it at 10%.
For reference, the year's highest daily chance of a wet day is 48% on October 23, and its lowest chance is 4% on February 2.
Probability of Precipitation in December
The average sliding 31-day rainfall during December in Santa María is very rapidly decreasing, starting the month at 4.7 inches, when it rarely exceeds 8.3 inches or falls below 1.8 inches, and ending the month at 1.2 inches, when it rarely exceeds 3.0 inches or falls below 0.1 inches.
Average Monthly Rainfall in December
Over the course of December in Santa María, the length of the day is essentially constant. The shortest day of the month is December 22, with 11 hours, 39 minutes of daylight and the longest day is December 1, with 11 hours, 41 minutes of daylight.
Hours of Daylight and Twilight in December
The earliest sunrise of the month in Santa María is 6:21 AM on December 1 and the latest sunrise is 15 minutes later at 6:35 AM on December 31.
The earliest sunset is 6:02 PM on December 1 and the latest sunset is 13 minutes later at 6:15 PM on December 31.
Daylight saving time is not observed in Santa María during 2019.
For reference, on June 21, the longest day of the year, the Sun rises at 6:06 AM and sets 12 hours, 36 minutes later, at 6:42 PM, while on December 22, the shortest day of the year, it rises at 6:31 AM and sets 11 hours, 39 minutes later, at 6:10 PM.
Sunrise & Sunset with Twilight in December
The chance that a given day will be muggy in Santa María is essentially constant during December, remaining around 100% throughout.
For reference, on May 24, the muggiest day of the year, there are muggy conditions 100% of the time, while on March 11, the least muggy day of the year, there are muggy conditions 94% 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 Santa María is increasing during December, increasing from 6.3 miles per hour to 8.1 miles per hour over the course of the month.
For reference, on February 27, the windiest day of the year, the daily average wind speed is 10.3 miles per hour, while on June 25, the calmest day of the year, the daily average wind speed is 4.8 miles per hour.
Average Wind Speed in December
Wind Direction in December
Santa María 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 Santa María is essentially constant during December, remaining around 82°F throughout.
Average Water Temperature in December
Temperatures in Santa María 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 December
The average accumulated growing degree days in Santa María are rapidly increasing during December, increasing by 857°F, from 9,814°F to 10,670°F, over the course of the month.
Growing Degree Days in December
The average daily incident shortwave solar energy in Santa María is increasing during December, rising by 1.0 kWh, from 4.5 kWh to 5.6 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in December
For the purposes of this report, the geographical coordinates of Santa María are 8.111 deg latitude, -80.666 deg longitude, and 46 ft elevation.
The topography within 2 miles of Santa María contains only modest variations in elevation, with a maximum elevation change of 105 feet and an average elevation above sea level of 45 feet. Within 10 miles contains only modest variations in elevation (837 feet). Within 50 miles contains very significant variations in elevation (6,342 feet).
The area within 2 miles of Santa María is covered by grassland (59%) and cropland (28%), within 10 miles by grassland (59%) and cropland (22%), and within 50 miles by grassland (30%) and water (24%).
This report illustrates the typical weather in Santa María 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 is only a single weather station, Albrook "Marcos A. Gelabert" International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Santa María.
At a distance of 159 kilometers from Santa María, further than our threshold of 150 kilometers, this station is deemed insufficiently nearby to be relied upon as our primary source for temperature and dew point records. Consequently, the station records are blended with interpolated values from NASA's MERRA-2 satellite-era reanalysis , and both are corrected for elevation differences according to the International Standard Atmosphere .
The weight assigned to the MERRA-2 value depends on the distance from Santa María to the nearest station, increasing from 0% at 150 kilometers to 100% at 200 kilometers. In this case, the MERRA-2 weight is 16%, making the weight assigned to the weather station 84%.
Time zones for aiports and weather stations are provided by AskGeo.com .