Summer Weather in Al Jalā’ Syria

Daily high temperatures increase by 4°F, from 97°F to 101°F, rarely falling below 90°F or exceeding 111°F. The highest daily average high temperature is 106°F on July 24.

Daily low temperatures increase by 4°F, from 72°F to 77°F, rarely falling below 67°F or exceeding 87°F. The highest daily average low temperature is 82°F on July 27.

For reference, on July 22, the hottest day of the year, temperatures in Al Jalā’ typically range from 82°F to 106°F, while on January 12, the coldest day of the year, they range from 37°F to 55°F.

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

Las Vegas, United States (7,314 miles away) is the far-away foreign place with temperatures most similar to Al Jalā’ (view comparison).

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Compare Al Jalā’ to another city:

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The summer in Al Jalā’ experiences decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 9% to 0%. The lowest chance of overcast or mostly cloudy conditions is 0% on August 21.

The clearest day of the summer is August 21, with clear, mostly clear, or partly cloudy conditions 100% of the time.

For reference, on December 13, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 36%, while on August 20, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 100%.

Over the course of the summer in Al Jalā’, the length of the day is rapidly decreasing. From the start to the end of the season, the length of the day decreases by 1 hour, 25 minutes, implying an average daily decrease of 56 seconds, and weekly decrease of 6 minutes, 32 seconds.

The shortest day of the summer is August 31, with 12 hours, 55 minutes of daylight and the longest day is June 21, with 14 hours, 29 minutes of daylight.

The earliest sunrise of the summer in Al Jalā’ is 5:03 AM on June 12 and the latest sunrise is 46 minutes later at 5:49 AM on August 31.

The latest sunset is 7:33 PM on June 28 and the earliest sunset is 50 minutes earlier at 6:44 PM on August 31.

Daylight saving time is not observed in Al Jalā’ during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:03 AM and sets 14 hours, 29 minutes later, at 7:32 PM, while on December 21, the shortest day of the year, it rises at 7:19 AM and sets 9 hours, 50 minutes later, at 5:09 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 summer 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 Al Jalā’ is essentially constant during the summer, remaining within 1% of 1% throughout.

The highest chance of a muggy day during the summer is 2% on August 10. The lowest chance of a muggy day during the summer is 0% on June 17.

For reference, on August 10, the muggiest day of the year, there are muggy conditions 2% of the time, while on January 1, 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 Al Jalā’ is decreasing during the summer, decreasing from 10.3 miles per hour to 9.2 miles per hour over the course of the season.

For reference, on July 1, the windiest day of the year, the daily average wind speed is 12.7 miles per hour, while on October 31, the calmest day of the year, the daily average wind speed is 6.8 miles per hour.

The highest daily average wind speed during the summer is 12.7 miles per hour on July 1.

The hourly average wind direction in Al Jalā’ throughout the summer is predominantly from the west, with a peak proportion of 83% on July 5.

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).

The growing season in Al Jalā’ typically lasts for 10 months (311 days), from around February 5 to around December 11, rarely starting after March 3, or ending before November 17.

The summer in Al Jalā’ is reliably fully 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 Jalā’ are very rapidly increasing during the summer, increasing by 3,118°F, from 1,886°F to 5,004°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 Al Jalā’ is decreasing during the summer, falling by 1.1 kWh, from 8.2 kWh to 7.1 kWh, over the course of the season.

The highest average daily incident shortwave solar energy during the summer is 8.5 kWh on June 22.

For the purposes of this report, the geographical coordinates of Al Jalā’ are 34.633 deg latitude, 40.841 deg longitude, and 584 ft elevation.

The topography within 2 miles of Al Jalā’ is essentially flat, with a maximum elevation change of 56 feet and an average elevation above sea level of 581 feet. Within 10 miles is essentially flat (318 feet). Within 50 miles contains only modest variations in elevation (1,027 feet).

The area within 2 miles of Al Jalā’ is covered by cropland (68%) and sparse vegetation (13%), within 10 miles by bare soil (55%) and cropland (31%), and within 50 miles by bare soil (88%).