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January Weather in Al Hilāliyya Sudan

Daily high temperatures are around 89°F, rarely falling below 81°F or exceeding 97°F. The lowest daily average high temperature is 88°F on January 9.

Daily low temperatures are around 64°F, rarely falling below 57°F or exceeding 71°F. The lowest daily average low temperature is 64°F on January 18.

For reference, on May 3, the hottest day of the year, temperatures in Al Hilāliyya typically range from 83°F to 106°F, while on January 16, the coldest day of the year, they range from 64°F to 88°F.

Average High and Low Temperature in January in Al Hilāliyya

Average High and Low Temperature in January in Al HilāliyyaJan112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313155°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°F95°F95°F100°F100°F105°F105°FDecFebJan 988°FJan 988°F64°F64°FJan 188°FJan 188°F64°F64°FJan 3189°FJan 3189°F64°F64°FJan 2188°FJan 2188°F64°F64°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 January. 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 January in Al Hilāliyya

Average Hourly Temperature in January in Al HilāliyyaJan112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMDecFebcoolcomfortablewarmwarmwarmhotwarmcomfortable
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.

Kaédi, Mauritania (3,109 miles away) is the far-away foreign place with temperatures most similar to Al Hilāliyya (view comparison).

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Compare Al Hilāliyya to another city:

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The month of January in Al Hilāliyya 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 clearest day of the month is January 24, with clear, mostly clear, or partly cloudy conditions 76% of the time.

For reference, on August 17, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 70%, while on November 16, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 82%.

Cloud Cover Categories in January in Al Hilāliyya

Cloud Cover Categories in January in Al HilāliyyaJan11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%DecFebJan 174%Jan 174%Jan 3175%Jan 3175%Jan 1175%Jan 1175%Jan 2175%Jan 2175%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.

Over the course of January in Al Hilāliyya, the length of the day is essentially constant. The shortest day of the month is January 1, with 11 hours, 16 minutes of daylight and the longest day is January 31, with 11 hours, 29 minutes of daylight.

Hours of Daylight and Twilight in January in Al Hilāliyya

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 Al Hilāliyya is 6:12 AM on January 1 and the latest sunrise is 4 minutes later at 6:16 AM on January 23.

The earliest sunset is 5:28 PM on January 1 and the latest sunset is 17 minutes later at 5:44 PM on January 31.

Daylight saving time is not observed in Al Hilāliyya during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:18 AM and sets 13 hours, 1 minute later, at 6:19 PM, while on December 21, the shortest day of the year, it rises at 6:08 AM and sets 11 hours, 15 minutes later, at 5:22 PM.

Sunrise & Sunset with Twilight in January in Al Hilāliyya

The solar day over the course of January. 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 January in Al Hilāliyya

Solar Elevation and Azimuth in January in Al HilāliyyaJan112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMDecFeb0010102020203030404050505060000101020203030304040505060
northeastsouthwest
Solar elevation and azimuth over the course of January 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 January 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 January in Al Hilāliyya

Moon Rise, Set & Phases in January in Al HilāliyyaJan112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMDecFebDec 131:33 AMDec 131:33 AMDec 272:34 AMDec 272:34 AMJan 111:58 PMJan 111:58 PMJan 257:55 PMJan 257:55 PMFeb 101:00 AMFeb 101:00 AMFeb 242:31 PMFeb 242:31 PM6:23 AM6:23 AM5:46 PM5:46 PM4:54 PM4:54 PM6:30 AM6:30 AM6:10 AM6:10 AM5:36 PM5:36 PM5:32 PM5:32 PM6:50 AM6:50 AM6:38 AM6:38 AM6:30 PM6:30 PM5:58 PM5:58 PM6:41 AM6:41 AM
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.
Jan 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
78%-10:08 AMWNW10:06 PME3:45 AMS251,482 mi
2
69%-10:41 AMW10:52 PME4:25 AMS251,523 mi
3
60%-11:14 AMW11:37 PME5:04 AMS250,757 mi
4
50%-11:47 AMW-5:42 AMS249,162 mi
5
40%12:24 AME12:22 PMWSW-6:23 AMS246,782 mi
6
30%1:13 AMESE1:00 PMWSW-7:06 AMS243,731 mi
7
21%2:06 AMESE1:43 PMWSW-7:54 AMS240,201 mi
8
13%3:03 AMESE2:32 PMWSW-8:47 AMS236,451 mi
9
6%4:04 AMESE3:28 PMWSW-9:45 AMS232,796 mi
10
2%5:07 AMESE4:30 PMWSW-10:49 AMS229,574 mi
11
0%6:10 AMESE5:36 PMWSW-11:54 AMS227,092 mi
12
1%7:09 AMESE6:43 PMWSW-12:57 PMS225,571 mi
13
6%8:02 AMESE7:48 PMWSW-1:56 PMS225,103 mi
14
13%8:51 AMESE8:49 PMWSW-2:50 PMS225,642 mi
15
22%9:35 AME9:47 PMW-3:41 PMS227,033 mi
16
33%10:16 AME10:43 PMW-4:29 PMS229,058 mi
17
44%10:56 AME11:38 PMW-5:16 PMS231,485 mi
18
50%11:37 AMENE--6:03 PMS234,102 mi
19
67%-12:33 AMWNW12:19 PMENE6:53 PMN236,744 mi
20
77%-1:30 AMWNW1:05 PMENE7:45 PMN239,301 mi
21
85%-2:28 AMWNW1:54 PMENE8:39 PMN241,712 mi
22
92%-3:26 AMWNW2:47 PMENE9:34 PMN243,946 mi
23
97%-4:23 AMWNW3:42 PMENE10:30 PMN245,990 mi
24
99%-5:16 AMWNW4:38 PMENE11:23 PMN247,826 mi
25
100%-6:05 AMWNW5:32 PMENE--
26
100%-6:50 AMWNW6:24 PMENE12:13 AMN249,423 mi
27
99%-7:30 AMWNW7:14 PMENE12:59 AMN250,724 mi
28
95%-8:06 AMWNW8:01 PME1:42 AMS251,651 mi
29
91%-8:40 AMW8:47 PME2:22 AMS252,109 mi
30
84%-9:13 AMW9:32 PME3:01 AMS251,995 mi
31
77%-9:46 AMW10:18 PME3:39 AMS251,219 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 Al Hilāliyya is essentially constant during January, remaining around 0% throughout.

For reference, on August 16, the muggiest day of the year, there are muggy conditions 93% of the time, while on February 7, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in January in Al Hilāliyya

Humidity Comfort Levels in January in Al HilāliyyaJan11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%DecFebJan 10%Jan 10%Jan 310%Jan 310%Jan 110%Jan 110%Jan 210%Jan 210%drydrycomfortablecomfortablehumidhumid
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 Al Hilāliyya is essentially constant during January, remaining within 0.2 miles per hour of 11.9 miles per hour throughout.

For reference, on February 17, the windiest day of the year, the daily average wind speed is 12.4 miles per hour, while on October 10, the calmest day of the year, the daily average wind speed is 6.8 miles per hour.

Average Wind Speed in January in Al Hilāliyya

Average Wind Speed in January in Al HilāliyyaJan11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mphDecFebJan 111.7 mphJan 111.7 mphJan 3112.1 mphJan 3112.1 mphJan 1611.9 mphJan 1611.9 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 Al Hilāliyya throughout January is predominantly from the north, with a peak proportion of 96% on January 1.

Wind Direction in January in Al Hilāliyya

Wind Direction in January in Al HilāliyyaJan11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%DecFebnorth
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 Al Hilāliyya 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 January in Al Hilāliyya

Time Spent in Various Temperature Bands and the Growing Season in January in Al HilāliyyaJan11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%DecFeb100%Jan 16100%Jan 16coolcomfortablewarmhotsweltering
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 Al Hilāliyya are rapidly increasing during January, increasing by 740°F, from 25°F to 765°F, over the course of the month.

Growing Degree Days in January in Al Hilāliyya

Growing Degree Days in January in Al HilāliyyaJan1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930303131100°F100°F200°F200°F300°F300°F400°F400°F500°F500°F600°F600°F700°F700°F800°F800°FDecFebJan 125°FJan 125°FJan 31765°FJan 31765°FJan 11268°FJan 11268°FJan 21514°FJan 21514°F
The average growing degree days accumulated over the course of January, 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 Al Hilāliyya is gradually increasing during January, rising by 0.6 kWh, from 5.7 kWh to 6.3 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in January in Al Hilāliyya

Average Daily Incident Shortwave Solar Energy in January in Al HilāliyyaJan11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWhDecFebJan 15.7 kWhJan 15.7 kWhJan 316.3 kWhJan 316.3 kWhJan 115.8 kWhJan 115.8 kWhJan 216.0 kWhJan 216.0 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 Al Hilāliyya are 14.940 deg latitude, 33.234 deg longitude, and 1,306 ft elevation.

The topography within 2 miles of Al Hilāliyya is essentially flat, with a maximum elevation change of 75 feet and an average elevation above sea level of 1,297 feet. Within 10 miles is essentially flat (112 feet). Within 50 miles contains only modest variations in elevation (627 feet).

The area within 2 miles of Al Hilāliyya is covered by cropland (64%) and artificial surfaces (30%), within 10 miles by cropland (86%), and within 50 miles by cropland (64%) and bare soil (19%).

This report illustrates the typical weather in Al Hilāliyya, 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 Al Hilāliyya.

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