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December Weather in Dammam Saudi Arabia

Daily high temperatures decrease by 7°F, from 77°F to 70°F, rarely falling below 64°F or exceeding 83°F.

Daily low temperatures decrease by 6°F, from 59°F to 53°F, rarely falling below 46°F or exceeding 65°F.

For reference, on July 12, the hottest day of the year, temperatures in Dammam typically range from 86°F to 109°F, while on January 14, the coldest day of the year, they range from 52°F to 69°F.

Average High and Low Temperature in December in Dammam

Average High and Low Temperature in December in DammamDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313145°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°F95°F95°FNovJanDec 177°FDec 177°F59°F59°FDec 3170°FDec 3170°F53°F53°FDec 1174°FDec 1174°F56°F56°FDec 2172°FDec 2172°F54°F54°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 Dammam

Average Hourly Temperature in December in DammamDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMNovJancoldcoolcoolcomfortablewarmhot
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.

Chingueṭṭi, Mauritania (3,943 miles away) is the far-away foreign place with temperatures most similar to Dammam (view comparison).

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The month of December in Dammam experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 30% throughout the month. The highest chance of overcast or mostly cloudy conditions is 31% on December 2.

The clearest day of the month is December 31, with clear, mostly clear, or partly cloudy conditions 71% of the time.

For reference, on August 11, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 44%, while on September 30, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 93%.

Cloud Cover Categories in December in Dammam

Cloud Cover Categories in December in DammamDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%NovJanSep 3093%Sep 3093%Dec 169%Dec 169%Dec 3171%Dec 3171%Dec 1170%Dec 1170%Dec 2171%Dec 2171%clearmostly clearovercastpartly cloudymostly 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.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Dammam, the chance of a wet day over the course of December is essentially constant, remaining around 5% throughout.

For reference, the year's highest daily chance of a wet day is 6% on March 13, and its lowest chance is 0% on July 4.

Probability of Precipitation in December in Dammam

Probability of Precipitation in December in DammamDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0%0.0%0.5%0.5%1.0%1.0%1.5%1.5%2.0%2.0%2.5%2.5%3.0%3.0%3.5%3.5%4.0%4.0%4.5%4.5%5.0%5.0%5.5%5.5%6.0%6.0%NovJanDec 36%Dec 36%Dec 314%Dec 314%Dec 115%Dec 115%Dec 214%Dec 214%rain
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 Dammam is essentially constant, remaining about 0.4 inches throughout, and rarely exceeding 1.3 inches or falling below -0.0 inches.

Average Monthly Rainfall in December in Dammam

Average Monthly Rainfall in December in DammamDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 in0.0 in0.2 in0.2 in0.4 in0.4 in0.6 in0.6 in0.8 in0.8 in1.0 in1.0 in1.2 in1.2 in1.4 in1.4 in1.6 in1.6 inNovJanDec 10.4 inDec 10.4 inDec 310.4 inDec 310.4 inDec 110.4 inDec 110.4 inDec 210.3 inDec 210.3 in
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 Dammam, the length of the day is essentially constant. The shortest day of the month is December 21, with 10 hours, 29 minutes of daylight and the longest day is December 1, with 10 hours, 36 minutes of daylight.

Hours of Daylight and Twilight in December in Dammam

Hours of Daylight and Twilight in December in DammamDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrNovJanDec 2110 hr, 29 minDec 2110 hr, 29 minnightnightdaydayDec 110 hr, 36 minDec 110 hr, 36 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 Dammam is 6:10 AM on December 1 and the latest sunrise is 17 minutes later at 6:27 AM on December 31.

The earliest sunset is 4:46 PM on December 1 and the latest sunset is 11 minutes later at 4:58 PM on December 31.

Daylight saving time is not observed in Dammam during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 4:47 AM and sets 13 hours, 48 minutes later, at 6:35 PM, while on December 21, the shortest day of the year, it rises at 6:23 AM and sets 10 hours, 29 minutes later, at 4:52 PM.

Sunrise & Sunset with Twilight in December in Dammam

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 Dammam

Solar Elevation and Azimuth in December in DammamDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMNovJan00101020202030304040000101020203030304040
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 Dammam

Moon Rise, Set & Phases in December in DammamDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNovJanNov 13:48 PMNov 13:48 PMNov 1612:29 AMNov 1612:29 AMDec 19:22 AMDec 19:22 AMDec 1512:02 PMDec 1512:02 PMDec 311:28 AMDec 311:28 AMJan 141:28 AMJan 141:28 AMJan 293:37 PMJan 293:37 PM5:32 AM5:32 AM4:44 PM4:44 PM4:17 PM4:17 PM6:24 AM6:24 AM6:15 AM6:15 AM4:42 PM4:42 PM4:43 PM4:43 PM7:24 AM7:24 AM6:57 AM6:57 AM5:22 PM5:22 PM4:33 PM4:33 PM6:58 AM6:58 AM6:25 AM6:25 AM5:16 PM5:16 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%6:15 AMESE4:42 PMWSW-11:28 AMS246,070 mi
2
1%7:14 AMESE5:33 PMWSW-12:23 PMS244,019 mi
3
5%8:11 AMESE6:30 PMWSW-1:21 PMS241,898 mi
4
11%9:04 AMESE7:32 PMWSW-2:18 PMS239,754 mi
5
18%9:51 AMESE8:35 PMWSW-3:14 PMS237,609 mi
6
28%10:33 AMESE9:38 PMWSW-4:06 PMS235,482 mi
7
38%11:11 AMESE10:41 PMWSW-4:56 PMS233,399 mi
8
50%11:46 AME11:42 PMW-5:43 PMS231,418 mi
9
61%12:19 PME--6:30 PMS229,640 mi
10
73%-12:44 AMW12:53 PME7:18 PMS228,204 mi
11
83%-1:47 AMW1:28 PMENE8:08 PMS227,281 mi
12
91%-2:53 AMWNW2:07 PMENE9:01 PMS227,040 mi
13
97%-4:01 AMWNW2:52 PMENE9:59 PMS227,616 mi
14
100%-5:11 AMWNW3:44 PMENE11:00 PMN229,066 mi
15
100%-6:20 AMWNW4:43 PMENE--
16
100%-7:24 AMWNW5:46 PMENE12:04 AMN231,338 mi
17
97%-8:20 AMWNW6:51 PMENE1:05 AMN234,268 mi
18
92%-9:08 AMWNW7:54 PMENE2:02 AMS237,604 mi
19
85%-9:48 AMWNW8:54 PMENE2:54 AMS241,053 mi
20
77%-10:22 AMWNW9:50 PMENE3:41 AMS244,322 mi
21
68%-10:52 AMW10:43 PME4:23 AMS247,153 mi
22
58%-11:20 AMW11:35 PME5:03 AMS249,344 mi
23
50%-11:48 AMW-5:42 AMS250,757 mi
24
39%12:26 AME12:15 PMW-6:21 AMS251,324 mi
25
30%1:17 AMESE12:44 PMWSW-7:01 AMS251,048 mi
26
21%2:10 AMESE1:16 PMWSW-7:43 AMS249,995 mi
27
14%3:06 AMESE1:53 PMWSW-8:29 AMS248,290 mi
28
7%4:04 AMESE2:35 PMWSW-9:19 AMS246,098 mi
29
3%5:03 AMESE3:24 PMWSW-10:13 AMS243,614 mi
30
0%6:01 AMESE4:20 PMWSW-11:11 AMS241,041 mi
31
0%6:57 AMESE5:22 PMWSW-12:10 PMS238,564 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 Dammam is decreasing during December, falling from 9% to 1% over the course of the month.

For reference, on August 28, the muggiest day of the year, there are muggy conditions 61% of the time, while on January 30, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in December in Dammam

Humidity Comfort Levels in December in DammamDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%NovJanDec 19%Dec 19%Dec 311%Dec 311%Dec 115%Dec 115%Dec 213%Dec 213%muggymuggyhumidhumidcomfortablecomfortabledrydryoppressiveoppressive
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 Dammam is essentially constant during December, remaining within 0.2 miles per hour of 10.4 miles per hour throughout.

For reference, on June 20, the windiest day of the year, the daily average wind speed is 11.6 miles per hour, while on October 3, the calmest day of the year, the daily average wind speed is 8.2 miles per hour.

Average Wind Speed in December in Dammam

Average Wind Speed in December in DammamDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mphNovJanDec 110.2 mphDec 110.2 mphDec 3110.6 mphDec 3110.6 mphDec 1610.4 mphDec 1610.4 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 Dammam throughout December is predominantly from the north, with a peak proportion of 54% on December 30.

Wind Direction in December in Dammam

Wind Direction in December in DammamDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%NovJansouthnortheastwest
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).

Dammam 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 Dammam is decreasing during December, falling by 6°F, from 75°F to 69°F, over the course of the month.

Average Water Temperature in December in Dammam

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).

Temperatures in Dammam 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 Dammam

Time Spent in Various Temperature Bands and the Growing Season in December in DammamDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%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 16coldcoolcomfortablewarmhot
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 Dammam are increasing during December, increasing by 425°F, from 9,151°F to 9,576°F, over the course of the month.

Growing Degree Days in December in Dammam

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 Dammam is essentially constant during December, remaining within 0.1 kWh of 3.8 kWh throughout.

The lowest average daily incident shortwave solar energy during December is 3.7 kWh on December 13.

Average Daily Incident Shortwave Solar Energy in December in Dammam

Average Daily Incident Shortwave Solar Energy in December in DammamDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 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 kWhNovJanDec 133.7 kWhDec 133.7 kWhDec 13.9 kWhDec 13.9 kWhDec 313.8 kWhDec 313.8 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 Dammam are 26.434 deg latitude, 50.103 deg longitude, and 33 ft elevation.

The topography within 2 miles of Dammam contains only modest variations in elevation, with a maximum elevation change of 157 feet and an average elevation above sea level of 28 feet. Within 10 miles contains only modest variations in elevation (640 feet). Within 50 miles contains significant variations in elevation (830 feet).

The area within 2 miles of Dammam is covered by artificial surfaces (70%) and bare soil (24%), within 10 miles by water (35%) and artificial surfaces (31%), and within 50 miles by water (52%) and bare soil (44%).

This report illustrates the typical weather in Dammam, 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, King Abdulaziz Air Base, in our network suitable to be used as a proxy for the historical temperature and dew point records of Dammam.

At a distance of 19 kilometers from Dammam, 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 Dammam 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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