Average Weather in Khamis Mushait Saudi Arabia

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4. Khamis Mushait

In Khamis Mushait, the summers are long, hot, arid, and partly cloudy and the winters are cool, dry, and mostly clear. Over the course of the year, the temperature typically varies from 48°F to 87°F and is rarely below 43°F or above 90°F.

The hot season lasts for 4.2 months, from May 15 to September 22, with an average daily high temperature above 83°F. The hottest day of the year is June 18, with an average high of 87°F and low of 66°F.

The cool season lasts for 2.9 months, from November 27 to February 25, with an average daily high temperature below 72°F. The coldest day of the year is December 31, with an average low of 48°F and high of 69°F.

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

In Khamis Mushait, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Khamis Mushait begins around October 21 and lasts for 6.5 months, ending around May 6. On November 26, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 85% of the time, and overcast or mostly cloudy 15% of the time.

The cloudier part of the year begins around May 6 and lasts for 5.5 months, ending around October 21. On July 20, the cloudiest day of the year, the sky is overcast or mostly cloudy 49% of the time, and clear, mostly clear, or partly cloudy 51% of the time.

Khamis Mushait does not experience significant seasonal variation in the frequency of wet days (i.e., those with greater than 0.04 inches of liquid or liquid-equivalent precipitation). The frequency ranges from 1% to 7%, with an average value of 3%.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 7% on April 26.

Rainfall

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Khamis Mushait experiences some seasonal variation in monthly rainfall.

The rainy period of the year lasts for 1.5 months, from March 23 to May 6, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around April 14, with an average total accumulation of 0.6 inches.

The rainless period of the year lasts for 11 months, from May 6 to March 23. The least rain falls around September 27, with an average total accumulation of 0.1 inches.

The length of the day in Khamis Mushait varies over the course of the year. In 2017, the shortest day is December 21, with 11 hours, 2 minutes of daylight; the longest day is June 21, with 13 hours, 14 minutes of daylight.

The earliest sunrise is at 5:32 AM on June 5, and the latest sunrise is 1 hour, 12 minutes later at 6:44 AM on January 18. The earliest sunset is at 5:30 PM on November 24, and the latest sunset is 1 hour, 19 minutes later at 6:49 PM on July 6.

Daylight saving time (DST) is not observed in Khamis Mushait during 2017.

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 perceived humidity level in Khamis Mushait, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 1% of 1% throughout.

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 Khamis Mushait experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 3.5 months, from January 3 to April 19, with average wind speeds of more than 3.8 miles per hour. The windiest day of the year is March 14, with an average hourly wind speed of 4.7 miles per hour.

The calmer time of year lasts for 8.5 months, from April 19 to January 3. The calmest day of the year is August 26, with an average hourly wind speed of 2.9 miles per hour.

The predominant average hourly wind direction in Khamis Mushait varies throughout the year.

The wind is most often from the east for 1.4 months, from May 6 to June 19 and for 3.1 months, from August 23 to November 26, with a peak percentage of 79% on September 30. The wind is most often from the west for 2.1 months, from June 19 to August 23, with a peak percentage of 55% on August 1. The wind is most often from the south for 5.4 months, from November 26 to May 6, with a peak percentage of 44% on January 1.

Khamis Mushait 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 water temperature experiences some seasonal variation over the course of the year.

The time of year with warmer water lasts for 2.3 months, from August 29 to November 7, with an average temperature above 88°F. The day of the year with the warmest water is October 2, with an average temperature of 89°F.

The time of year with cooler water lasts for 2.5 months, from January 5 to March 22, with an average temperature below 82°F. The day of the year with the coolest water is February 8, with an average temperature of 80°F.

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 experiences some seasonal variation over the course of the year.

The brighter period of the year lasts for 1.6 months, from May 27 to July 15, with an average daily incident shortwave energy per square meter above 7.3 kWh. The brightest day of the year is June 18, with an average of 7.7 kWh.

The darker period of the year lasts for 2.6 months, from November 10 to January 28, with an average daily incident shortwave energy per square meter below 5.9 kWh. The darkest day of the year is December 20, with an average of 5.5 kWh.

For the purposes of this report, the geographical coordinates of Khamis Mushait are 18.300 deg latitude, 42.733 deg longitude, and 6,614 ft elevation.

The topography within 2 miles of Khamis Mushait contains only modest variations in elevation, with a maximum elevation change of 210 feet and an average elevation above sea level of 6,587 feet. Within 10 miles contains only modest variations in elevation (1,319 feet). Within 50 miles contains very significant variations in elevation (9,577 feet).

The area within 2 miles of Khamis Mushait is covered by bare soil (83%), within 10 miles by bare soil (83%) and sparse vegetation (11%), and within 50 miles by bare soil (82%) and sparse vegetation (12%).

This report illustrates the typical weather in Khamis Mushait, 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Khamis Mushait.

For each station, the records are corrected for the elevation difference between that station and Khamis Mushait 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 Khamis Mushait is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Khamis Mushait and a given station.

The stations contributing to this reconstruction are: Khamis Mushait Air Base (63%, 7 kilometers, east); Abha Regional Airport (37%, 10 kilometers, southwest); and Bisha (0.6%, 186 kilometers, north).

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , 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 aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.