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April Weather in Al Hilāliyya Sudan

Daily high temperatures increase by 4°F, from 101°F to 106°F, rarely falling below 95°F or exceeding 110°F.

Daily low temperatures increase by 7°F, from 75°F to 82°F, rarely falling below 69°F or exceeding 88°F.

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 April in Al Hilāliyya

Average High and Low Temperature in April in Al HilāliyyaApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303060°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°F95°F95°F100°F100°F105°F105°F110°F110°FMarMayApr 1101°FApr 1101°F75°F75°FApr 30106°FApr 30106°F82°F82°FApr 11103°FApr 11103°F78°F78°FApr 21105°FApr 21105°F80°F80°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 April. 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 April in Al Hilāliyya

Average Hourly Temperature in April in Al HilāliyyaApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMMarMaycomfortablewarmwarmhothotsweltering
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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The month of April in Al Hilāliyya experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 27% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 25% on April 13.

The clearest day of the month is April 13, with clear, mostly clear, or partly cloudy conditions 75% 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 April in Al Hilāliyya

Cloud Cover Categories in April in Al HilāliyyaApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MarMayAug 1730%Aug 1730%Apr 173%Apr 173%Apr 3071%Apr 3071%Apr 1175%Apr 1175%Apr 2172%Apr 2172%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 Al Hilāliyya, the chance of a wet day over the course of April is gradually increasing, starting the month at 0% and ending it at 3%.

For reference, the year's highest daily chance of a wet day is 48% on August 14, and its lowest chance is -0% on December 24.

Probability of Precipitation in April in Al Hilāliyya

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 April in Al Hilāliyya is essentially constant, remaining about 0.1 inches throughout, and rarely exceeding 0.5 inches or falling below -0.0 inches.

Average Monthly Rainfall in April in Al Hilāliyya

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 April in Al Hilāliyya, the length of the day is gradually increasing. From the start to the end of the month, the length of the day increases by 23 minutes, implying an average daily increase of 47 seconds, and weekly increase of 5 minutes, 30 seconds.

The shortest day of the month is April 1, with 12 hours, 17 minutes of daylight and the longest day is April 30, with 12 hours, 40 minutes of daylight.

Hours of Daylight and Twilight in April 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 latest sunrise of the month in Al Hilāliyya is 5:42 AM on April 1 and the earliest sunrise is 18 minutes earlier at 5:24 AM on April 30.

The earliest sunset is 5:59 PM on April 1 and the latest sunset is 5 minutes later at 6:04 PM on April 30.

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 April in Al Hilāliyya

Sunrise & Sunset with Twilight in April in Al HilāliyyaApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PMMarMay5:24 AM5:24 AMApr 306:04 PMApr 306:04 PM5:42 AM5:42 AMApr 15:59 PMApr 15:59 PM5:35 AM5:35 AMApr 116:00 PMApr 116:00 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of April. 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 April in Al Hilāliyya

Solar Elevation and Azimuth in April in Al HilāliyyaApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMMarMay001010202020303040405050506060707080800001010202030303040405050606060707080
northeastsouthwest
Solar elevation and azimuth over the course of April 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 April 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 April in Al Hilāliyya

Moon Rise, Set & Phases in April in Al HilāliyyaApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMMarMayMar 1011:01 AMMar 1011:01 AMMar 259:01 AMMar 259:01 AMApr 88:22 PMApr 88:22 PMApr 241:50 AMApr 241:50 AMMay 85:23 AMMay 85:23 AMMay 233:54 PMMay 233:54 PM5:58 AM5:58 AM6:11 PM6:11 PM5:27 PM5:27 PM5:48 AM5:48 AM5:13 AM5:13 AM5:50 PM5:50 PM5:42 PM5:42 PM5:32 AM5:32 AM5:17 AM5:17 AM6:35 PM6:35 PM6:13 PM6:13 PM5:40 AM5:40 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.
Apr 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
61%-10:44 AMWSW-5:04 AMS238,821 mi
2
50%12:22 AMESE11:44 AMWSW-6:04 AMS235,510 mi
3
38%1:19 AMESE12:47 PMWSW-7:03 AMS232,119 mi
4
27%2:12 AMESE1:49 PMWSW-8:01 AMS228,888 mi
5
17%3:01 AMESE2:51 PMWSW-8:56 AMS226,108 mi
6
9%3:46 AMESE3:51 PMW-9:49 AMS224,079 mi
7
3%4:30 AME4:51 PMW-10:40 AMS223,062 mi
8
0%5:13 AME5:50 PMW-11:30 AMS223,223 mi
9
1%5:56 AME6:51 PMWNW-12:22 PMS224,593 mi
10
4%6:42 AMENE7:53 PMWNW-1:15 PMN227,057 mi
11
10%7:31 AMENE8:55 PMWNW-2:11 PMN230,374 mi
12
19%8:24 AMENE9:58 PMWNW-3:10 PMN234,213 mi
13
28%9:20 AMENE10:58 PMWNW-4:08 PMN238,216 mi
14
38%10:17 AMENE11:53 PMWNW-5:06 PMN242,047 mi
15
50%11:14 AMENE--6:00 PMN245,436 mi
16
59%-12:43 AMWNW12:09 PMENE6:50 PMN248,194 mi
17
68%-1:27 AMWNW1:01 PMENE7:36 PMN250,219 mi
18
77%-2:07 AMWNW1:51 PMENE8:19 PMS251,483 mi
19
85%-2:43 AMWNW2:38 PME8:59 PMS252,015 mi
20
91%-3:17 AMW3:24 PME9:37 PMS251,889 mi
21
96%-3:50 AMW4:09 PME10:16 PMS251,203 mi
22
99%-4:22 AMW4:55 PME10:55 PMS250,061 mi
23
100%-4:56 AMW5:42 PMESE11:37 PMS248,562 mi
24
100%-5:32 AMWSW6:32 PMESE--
25
99%-6:11 AMWSW7:25 PMESE12:21 AMS246,791 mi
26
96%-6:55 AMWSW8:21 PMESE1:10 AMS244,807 mi
27
91%-7:45 AMWSW9:19 PMESE2:02 AMS242,651 mi
28
84%-8:39 AMWSW10:17 PMESE2:59 AMS240,347 mi
29
75%-9:38 AMWSW11:14 PMESE3:58 AMS237,921 mi
30
65%-10:39 AMWSW-4:57 AMS235,415 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 increasing during April, rising from 0% to 7% over the course of the month.

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 April in Al Hilāliyya

Humidity Comfort Levels in April in Al HilāliyyaApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%MarMayApr 10%Apr 10%Apr 307%Apr 307%Apr 111%Apr 111%Apr 214%Apr 214%muggymuggyhumidhumiddrydryoppressiveoppressivecomfortablecomfortable
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 decreasing during April, decreasing from 11.8 miles per hour to 9.9 miles per hour over the course of the month.

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 April in Al Hilāliyya

Average Wind Speed in April in Al HilāliyyaApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mphMarMayApr 111.8 mphApr 111.8 mphApr 309.9 mphApr 309.9 mphApr 1610.9 mphApr 1610.9 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 April is predominantly from the north, with a peak proportion of 87% on April 1.

Wind Direction in April in Al Hilāliyya

Wind Direction in April in Al HilāliyyaNSApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%20%80%40%60%60%40%80%20%100%0%MarMaysouthnorthwesteast
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 April in Al Hilāliyya

Time Spent in Various Temperature Bands and the Growing Season in April in Al HilāliyyaApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MarMay100%Apr 16100%Apr 16comfortablewarmhotsweltering
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 very rapidly increasing during April, increasing by 992°F, from 2,516°F to 3,508°F, over the course of the month.

Growing Degree Days in April in Al Hilāliyya

Growing Degree Days in April in Al HilāliyyaApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930302,400°F2,400°F2,600°F2,600°F2,800°F2,800°F3,000°F3,000°F3,200°F3,200°F3,400°F3,400°F3,600°F3,600°FMarMayApr 12,516°FApr 12,516°FApr 303,508°FApr 303,508°FApr 112,851°FApr 112,851°FApr 213,193°FApr 213,193°F
The average growing degree days accumulated over the course of April, 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 essentially constant during April, remaining within 0.1 kWh of 7.6 kWh throughout.

The highest average daily incident shortwave solar energy during April is 7.6 kWh on April 13.

Average Daily Incident Shortwave Solar Energy in April in Al Hilāliyya

Average Daily Incident Shortwave Solar Energy in April in Al HilāliyyaApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhMarMayApr 137.6 kWhApr 137.6 kWhApr 17.5 kWhApr 17.5 kWhApr 307.5 kWhApr 307.5 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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