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December Weather in At Tāj Libya

Daily high temperatures decrease by 6°F, from 74°F to 67°F, rarely falling below 60°F or exceeding 82°F.

Daily low temperatures decrease by 6°F, from 53°F to 47°F, rarely falling below 42°F or exceeding 59°F.

For reference, on June 18, the hottest day of the year, temperatures in At Tāj typically range from 79°F to 101°F, while on January 5, the coldest day of the year, they range from 47°F to 67°F.

Average High and Low Temperature in December in At Tāj

Average High and Low Temperature in December in At TājDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313140°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°FNovJanDec 174°FDec 174°F53°F53°FDec 3167°FDec 3167°F47°F47°FDec 1171°FDec 1171°F51°F51°FDec 2169°FDec 2169°F48°F48°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 At Tāj

Average Hourly Temperature in December in At TājDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMNovJancoldcoolcoolcomfortablewarmcomfortable
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.

Nuevo Laredo, Mexico (7,223 miles away) and Lahore, Pakistan (3,135 miles) are the far-away foreign places with temperatures most similar to At Tāj (view comparison).

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The month of December in At Tāj experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 25% throughout the month. The highest chance of overcast or mostly cloudy conditions is 26% on December 17.

The clearest day of the month is December 31, with clear, mostly clear, or partly cloudy conditions 77% of the time.

For reference, on December 17, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 26%, while on September 8, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 97%.

Cloud Cover Categories in December in At Tāj

Cloud Cover Categories in December in At TājDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%NovJanSep 897%Sep 897%Dec 174%Dec 174%Dec 3177%Dec 3177%Dec 1174%Dec 1174%Dec 2175%Dec 2175%clearmostly clearovercastmostly cloudy
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.

Over the course of December in At Tāj, the length of the day is essentially constant. The shortest day of the month is December 21, with 10 hours, 38 minutes of daylight and the longest day is December 1, with 10 hours, 45 minutes of daylight.

Hours of Daylight and Twilight in December in At Tāj

Hours of Daylight and Twilight in December in At TājDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrNovJanDec 2110 hr, 38 minDec 2110 hr, 38 minnightnightdaydayDec 110 hr, 45 minDec 110 hr, 45 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 At Tāj is 6:53 AM on December 1 and the latest sunrise is 16 minutes later at 7:10 AM on December 31.

The earliest sunset is 5:38 PM on December 1 and the latest sunset is 12 minutes later at 5:50 PM on December 31.

Daylight saving time is not observed in At Tāj during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:39 AM and sets 13 hours, 38 minutes later, at 7:17 PM, while on December 21, the shortest day of the year, it rises at 7:05 AM and sets 10 hours, 38 minutes later, at 5:44 PM.

Sunrise & Sunset with Twilight in December in At Tāj

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 At Tāj

Solar Elevation and Azimuth in December in At TājDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMNovJan0010102020203030404050000101020203030304040
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 At Tāj

Moon Rise, Set & Phases in December in At TājDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 PM6:20 AM6:20 AM5:38 PM5:38 PM5:12 PM5:12 PM7:12 AM7:12 AM7:01 AM7:01 AM5:39 PM5:39 PM4:42 PM4:42 PM7:06 AM7:06 AM6:47 AM6:47 AM5:18 PM5:18 PM5:31 PM5:31 PM7:43 AM7:43 AM7:11 AM7:11 AM6:12 PM6:12 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%7:01 AMESE5:39 PMWSW-12:19 PMS245,921 mi
2
2%7:59 AMESE6:31 PMWSW-1:15 PMS243,863 mi
3
5%8:56 AMESE7:28 PMWSW-2:12 PMS241,739 mi
4
11%9:49 AMESE8:29 PMWSW-3:09 PMS239,594 mi
5
19%10:37 AMESE9:32 PMWSW-4:05 PMS237,450 mi
6
28%11:20 AMESE10:34 PMWSW-4:57 PMS235,325 mi
7
39%11:58 AMESE11:35 PMWSW-5:46 PMS233,247 mi
8
50%12:34 PME--6:34 PMS231,278 mi
9
62%-12:35 AMW1:09 PME7:21 PMS229,519 mi
10
74%-1:35 AMW1:44 PME8:08 PMS228,115 mi
11
83%-2:37 AMW2:21 PMENE8:59 PMS227,237 mi
12
91%-3:42 AMWNW3:02 PMENE9:52 PMS227,054 mi
13
97%-4:49 AMWNW3:48 PMENE10:51 PMN227,694 mi
14
100%-5:58 AMWNW4:42 PMENE11:52 PMN229,208 mi
15
100%-7:06 AMWNW5:41 PMENE--
16
100%-8:09 AMWNW6:45 PMENE12:56 AMN231,536 mi
17
97%-9:05 AMWNW7:49 PMENE1:57 AMN234,506 mi
18
91%-9:53 AMWNW8:51 PMENE2:54 AMN237,861 mi
19
84%-10:34 AMWNW9:49 PMENE3:45 AMS241,306 mi
20
76%-11:09 AMWNW10:44 PMENE4:31 AMS244,551 mi
21
67%-11:40 AMW11:36 PME5:14 AMS247,341 mi
22
57%-12:09 PMW-5:54 AMS249,478 mi
23
50%12:26 AME12:38 PMW-6:32 AMS250,829 mi
24
38%1:15 AME1:06 PMW-7:11 AMS251,332 mi
25
29%2:06 AMESE1:37 PMWSW-7:51 AMS250,995 mi
26
21%2:58 AMESE2:10 PMWSW-8:34 AMS249,889 mi
27
13%3:53 AMESE2:48 PMWSW-9:20 AMS248,141 mi
28
7%4:50 AMESE3:32 PMWSW-10:10 AMS245,920 mi
29
3%5:48 AMESE4:22 PMWSW-11:05 AMS243,423 mi
30
0%6:47 AMESE5:18 PMWSW-12:03 PMS240,851 mi
31
0%7:42 AMESE6:20 PMWSW-1:01 PMS238,388 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 At Tāj is essentially constant during December, remaining around 0% throughout.

For reference, on September 7, the muggiest day of the year, there are muggy conditions 0% 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 in At Tāj

Humidity Comfort Levels in December in At TājDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%NovJanDec 10%Dec 10%Dec 310%Dec 310%Dec 110%Dec 110%Dec 210%Dec 210%drydry
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 At Tāj is essentially constant during December, remaining around 7.5 miles per hour throughout.

For reference, on July 6, the windiest day of the year, the daily average wind speed is 9.8 miles per hour, while on December 9, the calmest day of the year, the daily average wind speed is 7.4 miles per hour.

The lowest daily average wind speed during December is 7.4 miles per hour on December 9.

Average Wind Speed in December in At Tāj

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 At Tāj throughout December is predominantly from the north, with a peak proportion of 44% on December 26.

Wind Direction in December in At Tāj

Wind Direction in December in At TājDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%NovJansoutheastnorthwest
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).

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 At Tāj 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 in At Tāj

Time Spent in Various Temperature Bands and the Growing Season in December in At TājDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%NovJan100%Dec 16100%Dec 16coldcoolcomfortablewarmhotvery cold
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 At Tāj are increasing during December, increasing by 295°F, from 8,496°F to 8,791°F, over the course of the month.

Growing Degree Days in December in At Tāj

Growing Degree Days in December in At TājDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031318,200°F8,200°F8,300°F8,300°F8,400°F8,400°F8,500°F8,500°F8,600°F8,600°F8,700°F8,700°F8,800°F8,800°F8,900°F8,900°F9,000°F9,000°F9,100°F9,100°FNovJanDec 18,496°FDec 18,496°FDec 318,791°FDec 318,791°FDec 118,611°FDec 118,611°FDec 218,705°FDec 218,705°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 At Tāj is essentially constant during December, remaining within 0.1 kWh of 4.6 kWh throughout.

The lowest average daily incident shortwave solar energy during December is 4.5 kWh on December 19.

Average Daily Incident Shortwave Solar Energy in December in At Tāj

Average Daily Incident Shortwave Solar Energy in December in At TājDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 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 kWh5.0 kWh5.0 kWh5.5 kWh5.5 kWh6.0 kWh6.0 kWhNovJanDec 194.5 kWhDec 194.5 kWhDec 14.7 kWhDec 14.7 kWhDec 314.6 kWhDec 314.6 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 At Tāj are 24.205 deg latitude, 23.286 deg longitude, and 1,243 ft elevation.

The topography within 2 miles of At Tāj contains only modest variations in elevation, with a maximum elevation change of 197 feet and an average elevation above sea level of 1,262 feet. Within 10 miles also contains only modest variations in elevation (394 feet). Within 50 miles contains only modest variations in elevation (1,161 feet).

The area within 2 miles of At Tāj is covered by cropland (47%), bare soil (34%), and artificial surfaces (19%), within 10 miles by bare soil (80%) and cropland (18%), and within 50 miles by bare soil (99%).

This report illustrates the typical weather in At Tāj, 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, Kufra Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of At Tāj.

At a distance of 4 kilometers from At Tāj, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.

The station records are corrected for the elevation difference between the station and At Tāj according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.

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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