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September Weather at Aswan International Airport Egypt

Daily high temperatures decrease by 4°F, from 104°F to 100°F, rarely falling below 93°F or exceeding 109°F.

Daily low temperatures decrease by 4°F, from 80°F to 76°F, rarely falling below 71°F or exceeding 85°F.

For reference, on July 31, the hottest day of the year, temperatures at Aswan International Airport typically range from 83°F to 106°F, while on January 15, the coldest day of the year, they range from 50°F to 72°F.

Average High and Low Temperature in September at Aswan International Airport

Average High and Low Temperature in September at Aswan International AirportSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303060°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°F95°F95°F100°F100°F105°F105°F110°F110°F115°F115°FAugOctSep 1104°FSep 1104°F80°F80°FSep 30100°FSep 30100°F76°F76°FSep 11103°FSep 11103°F79°F79°FSep 21102°FSep 21102°F78°F78°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 September. 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 September at Aswan International Airport

Average Hourly Temperature in September at Aswan International AirportSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMAugOctcomfortablewarmwarmhothotsweltering
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.

Yuma, Arizona, United States (7,980 miles away); Hermosillo, Mexico (8,061 miles); and Varanasi, Uttar Pradesh, India (3,138 miles) are the far-away foreign places with temperatures most similar to Aswan International Airport (view comparison).

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The month of September at Aswan International Airport experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 12% to 6%.

The clearest day of the month is September 30, with clear, mostly clear, or partly cloudy conditions 94% of the time.

For reference, on December 11, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 25%, while on June 16, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 94%.

Cloud Cover Categories in September at Aswan International Airport

Cloud Cover Categories in September at Aswan International AirportSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AugOctSep 188%Sep 188%Sep 3094%Sep 3094%Sep 1192%Sep 1192%Sep 2193%Sep 2193%clearovercastmostly clearpartly 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.

Over the course of September at Aswan International Airport, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 40 minutes, implying an average daily decrease of 1 minute, 22 seconds, and weekly decrease of 9 minutes, 35 seconds.

The shortest day of the month is September 30, with 11 hours, 56 minutes of daylight and the longest day is September 1, with 12 hours, 36 minutes of daylight.

Hours of Daylight and Twilight in September at Aswan International Airport

Hours of Daylight and Twilight in September at Aswan International AirportSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrAugOctSep 2212 hr, 7 minSep 2212 hr, 7 minnightnightdaydaySep 112 hr, 36 minSep 112 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 at Aswan International Airport is 6:30 AM on September 1 and the latest sunrise is 10 minutes later at 6:40 AM on September 30.

The latest sunset is 7:06 PM on September 1 and the earliest sunset is 30 minutes earlier at 6:36 PM on September 30.

Daylight saving time is observed at Aswan International Airport during 2024, but it neither starts nor ends during September, so the entire month is in daylight saving time.

For reference, on June 20, the longest day of the year, the Sun rises at 6:01 AM and sets 13 hours, 37 minutes later, at 7:38 PM, while on December 21, the shortest day of the year, it rises at 6:27 AM and sets 10 hours, 39 minutes later, at 5:06 PM.

Sunrise & Sunset with Twilight in September at Aswan International Airport

Sunrise & Sunset with Twilight in September at Aswan International AirportSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930302 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMAugOct6:30 AM6:30 AMSep 17:06 PMSep 17:06 PM6:40 AM6:40 AMSep 306:36 PMSep 306:36 PM6:33 AM6:33 AMSep 116:56 PMSep 116:56 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of September. 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 September at Aswan International Airport

Solar Elevation and Azimuth in September at Aswan International AirportSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMAugOct001010202020303040405050506070800001010202030303040405050606070
northeastsouthwest
Solar elevation and azimuth over the course of September 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 September 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 September at Aswan International Airport

Moon Rise, Set & Phases in September at Aswan International AirportSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAugOctAug 42:14 PMAug 42:14 PMAug 199:26 PMAug 199:26 PMSep 34:56 AMSep 34:56 AMSep 185:35 AMSep 185:35 AMOct 29:50 PMOct 29:50 PMOct 172:27 PMOct 172:27 PM6:01 AM6:01 AM7:47 PM7:47 PM7:21 PM7:21 PM6:53 AM6:53 AM6:37 AM6:37 AM7:25 PM7:25 PM6:32 PM6:32 PM6:42 AM6:42 AM6:13 AM6:13 AM6:25 PM6:25 PM6:17 PM6:17 PM7:37 AM7:37 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.
Sep 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
3%4:51 AMENE6:23 PMWNW-11:40 AMS248,644 mi
2
0%5:45 AMENE6:56 PMWNW-12:23 PMS250,152 mi
3
0%6:37 AME7:25 PMW-1:03 PMS251,310 mi
4
2%7:28 AME7:54 PMW-1:42 PMS252,079 mi
5
5%8:17 AME8:22 PMW-2:20 PMS252,401 mi
6
10%9:07 AME8:51 PMWSW-2:59 PMS252,205 mi
7
17%9:57 AMESE9:22 PMWSW-3:40 PMS251,414 mi
8
25%10:50 AMESE9:57 PMWSW-4:23 PMS249,964 mi
9
34%11:45 AMESE10:36 PMWSW-5:10 PMS247,820 mi
10
44%12:42 PMESE11:21 PMWSW-6:01 PMS244,995 mi
11
50%1:41 PMESE--6:57 PMS241,569 mi
12
65%-12:13 AMWSW2:39 PMESE7:56 PMS237,704 mi
13
75%-1:12 AMWSW3:34 PMESE8:55 PMS233,650 mi
14
85%-2:16 AMWSW4:25 PMESE9:54 PMS229,730 mi
15
92%-3:23 AMWSW5:11 PMESE10:51 PMS226,306 mi
16
98%-4:30 AMWSW5:53 PMESE11:44 PMS223,728 mi
17
99%-5:36 AMW6:32 PME--
18
100%-6:42 AMW7:09 PME12:36 AMS222,272 mi
19
99%-7:48 AMW7:47 PME1:27 AMS222,093 mi
20
95%-8:54 AMWNW8:27 PMENE2:18 AMS223,188 mi
21
88%-10:01 AMWNW9:11 PMENE3:11 AMS225,408 mi
22
79%-11:09 AMWNW9:59 PMENE4:07 AMS228,482 mi
23
68%-12:15 PMWNW10:53 PMENE5:05 AMN232,079 mi
24
50%-1:18 PMWNW11:50 PMENE6:05 AMN235,863 mi
25
46%-2:15 PMWNW-7:03 AMN239,540 mi
26
35%12:50 AMENE3:05 PMWNW-7:59 AMN242,895 mi
27
26%1:49 AMENE3:48 PMWNW-8:51 AMS245,789 mi
28
17%2:46 AMENE4:25 PMWNW-9:38 AMS248,160 mi
29
11%3:41 AMENE4:58 PMWNW-10:22 AMS249,997 mi
30
5%4:33 AMENE5:29 PMW-11:03 AMS251,320 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 at Aswan International Airport is essentially constant during September, remaining around 0% throughout.

For reference, on November 4, the muggiest day of the year, there are muggy conditions 0% of the time, while on February 10, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in September at Aswan International Airport

Humidity Comfort Levels in September at Aswan International AirportSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%AugOctSep 260%Sep 260%Sep 10%Sep 10%Sep 110%Sep 110%drydrycomfortablecomfortable
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 at Aswan International Airport is decreasing during September, decreasing from 10.8 miles per hour to 9.6 miles per hour over the course of the month.

For reference, on June 9, the windiest day of the year, the daily average wind speed is 11.0 miles per hour, while on November 28, the calmest day of the year, the daily average wind speed is 8.6 miles per hour.

Average Wind Speed in September at Aswan International Airport

Average Wind Speed in September at Aswan International AirportSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mphAugOctSep 110.8 mphSep 110.8 mphSep 309.6 mphSep 309.6 mphSep 1610.5 mphSep 1610.5 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 at Aswan International Airport throughout September is predominantly from the north, with a peak proportion of 90% on September 11.

Wind Direction in September at Aswan International Airport

Wind Direction in September at Aswan International AirportSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%20%80%40%60%60%40%80%20%100%0%AugOctnortheastwest
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 at Aswan International Airport 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 September at Aswan International Airport

Time Spent in Various Temperature Bands and the Growing Season in September at Aswan International AirportSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AugOct100%Sep 16100%Sep 16comfortablewarmhotswelteringcool
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 at Aswan International Airport are very rapidly increasing during September, increasing by 986°F, from 6,624°F to 7,610°F, over the course of the month.

Growing Degree Days in September at Aswan International Airport

Growing Degree Days in September at Aswan International AirportSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930306,400°F6,400°F6,600°F6,600°F6,800°F6,800°F7,000°F7,000°F7,200°F7,200°F7,400°F7,400°F7,600°F7,600°F7,800°F7,800°FAugOctSep 16,624°FSep 16,624°FSep 307,610°FSep 307,610°FSep 116,970°FSep 116,970°FSep 217,312°FSep 217,312°F
The average growing degree days accumulated over the course of September, 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 at Aswan International Airport is gradually decreasing during September, falling by 0.9 kWh, from 7.5 kWh to 6.6 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in September at Aswan International Airport

Average Daily Incident Shortwave Solar Energy in September at Aswan International AirportSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhAugOctSep 17.5 kWhSep 17.5 kWhSep 306.6 kWhSep 306.6 kWhSep 117.2 kWhSep 117.2 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 Aswan International Airport are 23.964 deg latitude, 32.820 deg longitude, and 646 ft elevation.

The topography within 2 miles of Aswan International Airport contains only modest variations in elevation, with a maximum elevation change of 135 feet and an average elevation above sea level of 632 feet. Within 10 miles contains only modest variations in elevation (758 feet). Within 50 miles contains significant variations in elevation (1,581 feet).

The area within 2 miles of Aswan International Airport is covered by bare soil (82%) and artificial surfaces (14%), within 10 miles by bare soil (79%) and water (19%), and within 50 miles by bare soil (87%).

This report illustrates the typical weather at Aswan International Airport, 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

Aswan International Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.

There are no other weather stations in our network within 200 kilometers of this location. Consequently, in the case of missing or erroneous measurements from this station, we fall back on NASA's MERRA-2 modern-era reanalysis , adjusted according to typical seasonal and diurnal differences between this station and the wide-area MERRA-2 reconstructed values.

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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