Fall Weather in Samannūd Egypt

Daily high temperatures decrease by 20°F, from 94°F to 73°F, rarely falling below 67°F or exceeding 99°F.

Daily low temperatures decrease by 18°F, from 72°F to 55°F, rarely falling below 50°F or exceeding 76°F.

For reference, on July 31, the hottest day of the year, temperatures in Samannūd typically range from 74°F to 95°F, while on January 19, the coldest day of the year, they range from 49°F to 66°F.

The figure below shows you a compact characterization of the hourly average fall temperatures. 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.

Beeville, United States (7,145 miles away) and Floral City, United States (6,435 miles) are the far-away foreign places with temperatures most similar to Samannūd (view comparison).

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The fall in Samannūd experiences very rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 0% to 30%.

The clearest day of the fall is September 1, with clear, mostly clear, or partly cloudy conditions 100% of the time.

For reference, on December 8, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 31%, while on June 30, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 100%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Samannūd, the chance of a wet day over the course of the fall is gradually increasing, starting the season at 0% and ending it at 3%.

For reference, the year's highest daily chance of a wet day is 5% on January 31, and its lowest chance is 0% on July 16.

Rainfall

To show variation within the season and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during the fall in Samannūd is essentially constant, remaining about 0.1 inches throughout, and rarely exceeding 0.5 inches or falling below -0.0 inches.

Over the course of the fall in Samannūd, the length of the day is very rapidly decreasing. From the start to the end of the season, the length of the day decreases by 2 hours, 29 minutes, implying an average daily decrease of 1 minute, 39 seconds, and weekly decrease of 11 minutes, 33 seconds.

The shortest day of the fall is November 30, with 10 hours, 18 minutes of daylight and the longest day is September 1, with 12 hours, 47 minutes of daylight.

The latest sunrise of the fall in Samannūd is 7:09 AM on October 31 and the earliest sunrise is 59 minutes earlier at 6:10 AM on November 1.

The latest sunset is 7:17 PM on September 1 and the earliest sunset is 2 hours, 25 minutes earlier at 4:52 PM on November 30.

Daylight saving time (DST) starts at 11:00 PM on October 31, 2024, shifting sunrise and sunset to be an hour later.

For reference, on June 20, the longest day of the year, the Sun rises at 5:51 AM and sets 14 hours, 10 minutes later, at 8:01 PM, while on December 21, the shortest day of the year, it rises at 6:49 AM and sets 10 hours, 8 minutes later, at 4:57 PM.

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.

The figure below presents a compact representation of key lunar data for the fall of 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.

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 Samannūd is very rapidly decreasing during the fall, falling from 65% to 2% over the course of the season.

For reference, on August 15, the muggiest day of the year, there are muggy conditions 75% of the time, while on January 25, the least muggy day of the year, there are muggy conditions 0% of the time.

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 Samannūd is essentially constant during the fall, remaining within 0.1 miles per hour of 8.2 miles per hour throughout.

For reference, on June 18, the windiest day of the year, the daily average wind speed is 9.6 miles per hour, while on December 17, the calmest day of the year, the daily average wind speed is 8.0 miles per hour.

The hourly average wind direction in Samannūd throughout the fall is predominantly from the north, with a peak proportion of 78% on September 7.

Samannūd 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 Samannūd is very rapidly decreasing during the fall, falling by 11°F, from 82°F to 70°F, over the course of the season.

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 Samannūd 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.

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 Samannūd are very rapidly increasing during the fall, increasing by 2,110°F, from 5,029°F to 7,139°F, over the course of the season.

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 Samannūd is very rapidly decreasing during the fall, falling by 3.8 kWh, from 7.2 kWh to 3.3 kWh, over the course of the season.

For the purposes of this report, the geographical coordinates of Samannūd are 30.962 deg latitude, 31.241 deg longitude, and 39 ft elevation.

The topography within 2 miles of Samannūd contains only modest variations in elevation, with a maximum elevation change of 135 feet and an average elevation above sea level of 24 feet. Within 10 miles also contains only modest variations in elevation (141 feet). Within 50 miles contains only modest variations in elevation (719 feet).

The area within 2 miles of Samannūd is covered by cropland (84%) and artificial surfaces (13%), within 10 miles by cropland (91%), and within 50 miles by cropland (80%).