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December Weather in Sperchógeia Greece

Daily high temperatures decrease by 4°F, from 63°F to 58°F, rarely falling below 52°F or exceeding 68°F.

Daily low temperatures decrease by 4°F, from 45°F to 41°F, rarely falling below 33°F or exceeding 52°F.

For reference, on July 28, the hottest day of the year, temperatures in Sperchógeia typically range from 66°F to 89°F, while on January 23, the coldest day of the year, they range from 40°F to 58°F.

Average High and Low Temperature in December in Sperchógeia

Average High and Low Temperature in December in SperchógeiaDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313130°F30°F35°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°FNovJanDec 163°FDec 163°F45°F45°FDec 3158°FDec 3158°F41°F41°FDec 1161°FDec 1161°F44°F44°FDec 2159°FDec 2159°F42°F42°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 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 in Sperchógeia

Average Hourly Temperature in December in SperchógeiaDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMNovJanvery coldcoldcoldcoolcomfortablecool
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.

Deer Park, California, United States (6,702 miles away); Wundowie, Australia (7,720 miles); and Narrandera, Australia (9,381 miles) are the far-away foreign places with temperatures most similar to Sperchógeia (view comparison).

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The month of December in Sperchógeia experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 47% throughout the month. The highest chance of overcast or mostly cloudy conditions is 48% on December 12.

The clearest day of the month is December 26, with clear, mostly clear, or partly cloudy conditions 54% of the time.

For reference, on December 12, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 48%, while on July 19, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 99%.

Cloud Cover Categories in December in Sperchógeia

Cloud Cover Categories in December in SperchógeiaDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%NovJanJul 1999%Jul 1999%Dec 153%Dec 153%Dec 3154%Dec 3154%Dec 1152%Dec 1152%Dec 2153%Dec 2153%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 Sperchógeia, the chance of a wet day over the course of December is gradually decreasing, starting the month at 35% and ending it at 31%.

For reference, the year's highest daily chance of a wet day is 35% on December 6, and its lowest chance is 2% on July 22.

Probability of Precipitation in December in Sperchógeia

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 December in Sperchógeia is decreasing, starting the month at 4.1 inches, when it rarely exceeds 7.4 inches or falls below 1.4 inches, and ending the month at 3.3 inches, when it rarely exceeds 5.8 inches or falls below 1.1 inches.

The highest average 31-day accumulation is 4.1 inches on December 1.

Average Monthly Rainfall in December in Sperchógeia

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 December in Sperchógeia, the length of the day is essentially constant. The shortest day of the month is December 21, with 9 hours, 37 minutes of daylight and the longest day is December 1, with 9 hours, 48 minutes of daylight.

Hours of Daylight and Twilight in December in Sperchógeia

Hours of Daylight and Twilight in December in SperchógeiaDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrNovJanDec 219 hr, 37 minDec 219 hr, 37 minnightnightdaydayDec 19 hr, 48 minDec 19 hr, 48 min
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 Sperchógeia is 7:26 AM on December 1 and the latest sunrise is 18 minutes later at 7:45 AM on December 31.

The earliest sunset is 5:14 PM on December 6 and the latest sunset is 10 minutes later at 5:24 PM on December 31.

Daylight saving time is observed in Sperchógeia during 2024, but it neither starts nor ends during December, so the entire month is in daylight saving time.

For reference, on June 20, the longest day of the year, the Sun rises at 6:12 AM and sets 14 hours, 43 minutes later, at 8:54 PM, while on December 21, the shortest day of the year, it rises at 7:41 AM and sets 9 hours, 37 minutes later, at 5:18 PM.

Sunrise & Sunset with Twilight in December in Sperchógeia

The solar day over the course of December. 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 December in Sperchógeia

Solar Elevation and Azimuth in December in SperchógeiaDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMNovJan0010102020203030000101020203030
northeastsouthwest
Solar elevation and azimuth over the course of December 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 December 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 December in Sperchógeia

Moon Rise, Set & Phases in December in SperchógeiaDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNovJanNov 12:48 PMNov 12:48 PMNov 1511:29 PMNov 1511:29 PMDec 18:22 AMDec 18:22 AMDec 1511:02 AMDec 1511:02 AMDec 3112:28 AMDec 3112:28 AMJan 1412:28 AMJan 1412:28 AMJan 292:37 PMJan 292:37 PM6:46 AM6:46 AM5:19 PM5:19 PM4:48 PM4:48 PM7:51 AM7:51 AM7:44 AM7:44 AM5:05 PM5:05 PM4:08 PM4:08 PM7:53 AM7:53 AM7:34 AM7:34 AM4:42 PM4:42 PM4:57 PM4:57 PM8:23 AM8:23 AM7:48 AM7:48 AM5:49 PM5:49 PM
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.
Dec 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
0%7:44 AMSE5:05 PMSW-12:24 PMS245,915 mi
2
2%8:46 AMSE5:54 PMSW-1:20 PMS243,856 mi
3
5%9:43 AMSE6:52 PMSW-2:17 PMS241,731 mi
4
11%10:33 AMSE7:57 PMWSW-3:15 PMS239,586 mi
5
19%11:15 AMESE9:06 PMWSW-4:11 PMS237,442 mi
6
28%11:51 AMESE10:16 PMWSW-5:03 PMS235,316 mi
7
39%12:21 PMESE11:25 PMWSW-5:53 PMS233,238 mi
8
50%12:49 PME--6:40 PMS231,269 mi
9
62%-12:34 AMW1:15 PME7:27 PMS229,512 mi
10
74%-1:44 AMW1:41 PME8:15 PMS228,110 mi
11
83%-2:55 AMWNW2:10 PMENE9:05 PMS227,235 mi
12
91%-4:08 AMWNW2:42 PMENE9:59 PMS227,055 mi
13
97%-5:24 AMWNW3:20 PMENE10:56 PMS227,698 mi
14
100%-6:41 AMWNW4:08 PMNE11:58 PMS229,215 mi
15
100%-7:53 AMNW5:04 PMNE--
16
100%-8:56 AMNW6:09 PMNE1:01 AMS231,545 mi
17
97%-9:48 AMNW7:18 PMENE2:01 AMS234,516 mi
18
91%-10:30 AMWNW8:26 PMENE2:58 AMS237,871 mi
19
84%-11:04 AMWNW9:32 PMENE3:49 AMS241,316 mi
20
76%-11:31 AMWNW10:34 PMENE4:35 AMS244,559 mi
21
67%-11:55 AMW11:34 PME5:18 AMS247,347 mi
22
57%-12:17 PMW-5:58 AMS249,482 mi
23
50%12:31 AME12:38 PMW-6:36 AMS250,831 mi
24
38%1:29 AME1:00 PMWSW-7:15 AMS251,332 mi
25
29%2:26 AMESE1:23 PMWSW-7:55 AMS250,993 mi
26
20%3:26 AMESE1:49 PMWSW-8:38 AMS249,885 mi
27
13%4:28 AMESE2:21 PMWSW-9:24 AMS248,135 mi
28
7%5:31 AMESE2:59 PMSW-10:15 AMS245,913 mi
29
3%6:34 AMSE3:46 PMSW-11:10 AMS243,415 mi
30
0%7:34 AMSE4:42 PMSW-12:08 PMS240,842 mi
31
0%8:27 AMSE5:46 PMSW-1:07 PMS238,380 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 Sperchógeia is essentially constant during December, remaining around 0% throughout.

The lowest chance of a muggy day during December is 0% on December 24.

For reference, on August 6, the muggiest day of the year, there are muggy conditions 35% of the time, while on December 17, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in December in Sperchógeia

Humidity Comfort Levels in December in SperchógeiaDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%NovJanDec 240%Dec 240%Dec 10%Dec 10%Dec 110%Dec 110%comfortablecomfortabledrydryhumidhumid
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 Sperchógeia is essentially constant during December, remaining within 0.1 miles per hour of 9.2 miles per hour throughout.

For reference, on February 8, the windiest day of the year, the daily average wind speed is 9.7 miles per hour, while on August 18, the calmest day of the year, the daily average wind speed is 7.0 miles per hour.

Average Wind Speed in December in Sperchógeia

Average Wind Speed in December in SperchógeiaDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mphNovJanDec 19.0 mphDec 19.0 mphDec 319.3 mphDec 319.3 mphDec 119.2 mphDec 119.2 mphDec 219.3 mphDec 219.3 mph
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 Sperchógeia throughout December is predominantly from the west, with a peak proportion of 32% on December 6.

Wind Direction in December in Sperchógeia

Wind Direction in December in SperchógeiaEWEWDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%NovJanwestsoutheastnorth
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).

Sperchógeia 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 Sperchógeia is decreasing during December, falling by 4°F, from 66°F to 62°F, over the course of the month.

Average Water Temperature in December in Sperchógeia

Average Water Temperature in December in SperchógeiaDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313158°F58°F60°F60°F62°F62°F64°F64°F66°F66°F68°F68°F70°F70°F72°F72°F74°F74°FNovJanDec 166°FDec 166°FDec 3162°FDec 3162°FDec 1165°FDec 1165°FDec 2163°FDec 2163°F
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).

The growing season in Sperchógeia typically lasts for 10 months (307 days), from around February 20 to around December 23, rarely starting after March 22, or ending before November 26.

During December in Sperchógeia, the chance that a given day is within the growing season is very rapidly decreasing falling from 86% to 34% over the course of the month.

Time Spent in Various Temperature Bands and the Growing Season in December in Sperchógeia

Time Spent in Various Temperature Bands and the Growing Season in December in Sperchógeiagrowing seasonDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%NovJan86%Dec 186%Dec 1Dec 3134%Dec 3134%73%Dec 1173%Dec 1154%Dec 2154%Dec 21very coldcoldcoolcomfortable
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 Sperchógeia are gradually increasing during December, increasing by 112°F, from 4,752°F to 4,864°F, over the course of the month.

Growing Degree Days in December in Sperchógeia

Growing Degree Days in December in SperchógeiaDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031314,400°F4,400°F4,500°F4,500°F4,600°F4,600°F4,700°F4,700°F4,800°F4,800°F4,900°F4,900°F5,000°F5,000°F5,100°F5,100°F5,200°F5,200°FNovJanDec 14,752°FDec 14,752°FDec 314,864°FDec 314,864°FDec 114,795°FDec 114,795°FDec 214,831°FDec 214,831°F
The average growing degree days accumulated over the course of December, 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 Sperchógeia is essentially constant during December, remaining within 0.1 kWh of 2.2 kWh throughout.

The lowest average daily incident shortwave solar energy during December is 2.1 kWh on December 20.

Average Daily Incident Shortwave Solar Energy in December in Sperchógeia

Average Daily Incident Shortwave Solar Energy in December in SperchógeiaDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 kWh0.0 kWh0.5 kWh0.5 kWh1.0 kWh1.0 kWh1.5 kWh1.5 kWh2.0 kWh2.0 kWh2.5 kWh2.5 kWh3.0 kWh3.0 kWh3.5 kWh3.5 kWh4.0 kWh4.0 kWh4.5 kWh4.5 kWhNovJanDec 202.1 kWhDec 202.1 kWhDec 12.3 kWhDec 12.3 kWhDec 312.2 kWhDec 312.2 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 Sperchógeia are 37.074 deg latitude, 22.062 deg longitude, and 177 ft elevation.

The topography within 2 miles of Sperchógeia contains large variations in elevation, with a maximum elevation change of 2,152 feet and an average elevation above sea level of 389 feet. Within 10 miles contains large variations in elevation (4,856 feet). Within 50 miles also contains extreme variations in elevation (7,848 feet).

The area within 2 miles of Sperchógeia is covered by cropland (37%), trees (29%), shrubs (15%), and grassland (14%), within 10 miles by trees (28%) and cropland (24%), and within 50 miles by water (49%) and trees (17%).

This report illustrates the typical weather in Sperchógeia, 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Sperchógeia.

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