Fall Weather in Markaz al Marīr Yemen

Daily high temperatures decrease by 6°F, from 93°F to 87°F, rarely falling below 84°F or exceeding 97°F. The highest daily average high temperature is 94°F on September 18.

Daily low temperatures decrease by 11°F, from 79°F to 69°F, rarely falling below 65°F or exceeding 82°F.

For reference, on June 6, the hottest day of the year, temperatures in Markaz al Marīr typically range from 81°F to 96°F, while on December 25, the coldest day of the year, they range from 68°F to 85°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.

Santo Domingo Zanatepec, Mexico (8,887 miles away); Nakhon Ratchasima, Thailand (3,907 miles); and Darwin, Australia (6,251 miles) are the far-away foreign places with temperatures most similar to Markaz al Marīr (view comparison).

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The fall in Markaz al Marīr experiences very rapidly decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 51% to 22%. The lowest chance of overcast or mostly cloudy conditions is 21% on November 25.

The clearest day of the fall is November 25, with clear, mostly clear, or partly cloudy conditions 79% of the time.

For reference, on July 16, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 68%, while on November 25, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 79%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Markaz al Marīr, the chance of a wet day over the course of the fall is very rapidly decreasing, starting the season at 14% and ending it at 2%.

For reference, the year's highest daily chance of a wet day is 24% on August 2, and its lowest chance is 1% on November 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 Markaz al Marīr is rapidly decreasing, starting the season at 2.1 inches, when it rarely exceeds 4.0 inches, and ending the season at 0.2 inches, when it rarely exceeds 0.6 inches or falls below -0.0 inches.

Over the course of the fall in Markaz al Marīr, 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, 1 minute, implying an average daily decrease of 41 seconds, and weekly decrease of 4 minutes, 44 seconds.

The shortest day of the fall is November 30, with 11 hours, 22 minutes of daylight and the longest day is September 1, with 12 hours, 23 minutes of daylight.

The earliest sunrise of the fall in Markaz al Marīr is 5:53 AM on September 1 and the latest sunrise is 19 minutes later at 6:13 AM on November 30.

The latest sunset is 6:16 PM on September 1 and the earliest sunset is 42 minutes earlier at 5:34 PM on November 21.

Daylight saving time is not observed in Markaz al Marīr during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:38 AM and sets 12 hours, 57 minutes later, at 6:35 PM, while on December 21, the shortest day of the year, it rises at 6:24 AM and sets 11 hours, 18 minutes later, at 5:42 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 Markaz al Marīr is very rapidly decreasing during the fall, falling from 94% to 31% over the course of the season.

For reference, on August 21, the muggiest day of the year, there are muggy conditions 96% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 28% 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 Markaz al Marīr is essentially constant during the fall, remaining within 0.4 miles per hour of 6.4 miles per hour throughout.

For reference, on July 18, the windiest day of the year, the daily average wind speed is 8.4 miles per hour, while on May 20, the calmest day of the year, the daily average wind speed is 6.0 miles per hour.

The lowest daily average wind speed during the fall is 6.0 miles per hour on September 26.

The wind direction in Markaz al Marīr during the fall is predominantly out of the west from September 1 to October 8 and from November 9 to November 30 and the east from October 8 to November 9.

Markaz al Marīr 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 Markaz al Marīr is rapidly decreasing during the fall, falling by 8°F, from 88°F to 80°F, over the course of the season.

The highest average surface water temperature during the fall is 88°F on September 14.

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 Markaz al Marīr 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 Markaz al Marīr are very rapidly increasing during the fall, increasing by 2,794°F, from 7,762°F to 10,555°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 Markaz al Marīr is essentially constant during the fall, remaining within 0.4 kWh of 6.1 kWh throughout.

The highest average daily incident shortwave solar energy during the fall is 6.5 kWh on October 11.

For the purposes of this report, the geographical coordinates of Markaz al Marīr are 13.982 deg latitude, 43.595 deg longitude, and 1,076 ft elevation.

The topography within 2 miles of Markaz al Marīr contains very significant variations in elevation, with a maximum elevation change of 1,588 feet and an average elevation above sea level of 1,261 feet. Within 10 miles contains very significant variations in elevation (4,134 feet). Within 50 miles also contains extreme variations in elevation (10,643 feet).

The area within 2 miles of Markaz al Marīr is covered by bare soil (51%), sparse vegetation (34%), and cropland (15%), within 10 miles by bare soil (55%) and sparse vegetation (33%), and within 50 miles by bare soil (50%) and sparse vegetation (22%).