Winter Weather in Barkly West South Africa

Daily high temperatures increase by 7°F, from 69°F to 76°F, rarely falling below 56°F or exceeding 85°F. The lowest daily average high temperature is 66°F on June 27.

Daily low temperatures increase by 5°F, from 41°F to 46°F, rarely falling below 28°F or exceeding 56°F. The lowest daily average low temperature is 37°F on June 28.

For reference, on December 27, the hottest day of the year, temperatures in Barkly West typically range from 64°F to 92°F, while on June 28, the coldest day of the year, they range from 37°F to 66°F.

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

Chilecito, Argentina (5,404 miles away) and Dalby, Australia (7,224 miles) are the far-away foreign places with temperatures most similar to Barkly West (view comparison).

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The winter in Barkly West experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 15% throughout the season. The lowest chance of overcast or mostly cloudy conditions is 12% on July 24.

The clearest day of the winter is July 24, with clear, mostly clear, or partly cloudy conditions 88% of the time.

For reference, on October 20, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 30%, while on July 23, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 88%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Barkly West, the chance of a wet day over the course of the winter is essentially constant, remaining around 2% throughout.

For reference, the year's highest daily chance of a wet day is 28% on February 5, and its lowest chance is 1% on July 14.

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 winter in Barkly West is essentially constant, remaining about 0.2 inches throughout, and rarely exceeding 1.0 inches or falling below -0.0 inches.

The lowest average 31-day accumulation is 0.1 inches on July 16.

Over the course of the winter in Barkly West, the length of the day is rapidly increasing. From the start to the end of the season, the length of the day increases by 1 hour, 5 minutes, implying an average daily increase of 43 seconds, and weekly increase of 4 minutes, 58 seconds.

The shortest day of the winter is June 21, with 10 hours, 19 minutes of daylight and the longest day is August 31, with 11 hours, 31 minutes of daylight.

The latest sunrise of the winter in Barkly West is 7:15 AM on July 2 and the earliest sunrise is 38 minutes earlier at 6:36 AM on August 31.

The earliest sunset is 5:32 PM on June 9 and the latest sunset is 36 minutes later at 6:07 PM on August 31.

Daylight saving time is not observed in Barkly West during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 5:21 AM and sets 13 hours, 58 minutes later, at 7:19 PM, while on June 20, the shortest day of the year, it rises at 7:13 AM and sets 10 hours, 19 minutes later, at 5:33 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 winter 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 Barkly West is essentially constant during the winter, remaining around 0% throughout.

For reference, on February 4, the muggiest day of the year, there are muggy conditions 7% of the time, while on May 9, 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 Barkly West is increasing during the winter, increasing from 7.7 miles per hour to 9.4 miles per hour over the course of the season.

For reference, on October 24, the windiest day of the year, the daily average wind speed is 9.6 miles per hour, while on March 6, the calmest day of the year, the daily average wind speed is 6.9 miles per hour.

The hourly average wind direction in Barkly West throughout the winter is predominantly from the north, with a peak proportion of 47% on July 4.

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 Barkly West typically lasts for 9.4 months (286 days), from around August 19 to around May 31, rarely starting before July 19 or after September 12, and rarely ending before May 12 or after June 30.

The winter in Barkly West is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season reaching a low of 8% on July 10.

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 Barkly West are very rapidly decreasing during the winter, decreasing by 5,504°F, from 5,958°F to 454°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 Barkly West is rapidly increasing during the winter, rising by 1.6 kWh, from 4.0 kWh to 5.7 kWh, over the course of the season.

The lowest average daily incident shortwave solar energy during the winter is 3.9 kWh on June 18.

For the purposes of this report, the geographical coordinates of Barkly West are -28.535 deg latitude, 24.522 deg longitude, and 3,622 ft elevation.

The topography within 2 miles of Barkly West contains only modest variations in elevation, with a maximum elevation change of 197 feet and an average elevation above sea level of 3,669 feet. Within 10 miles contains only modest variations in elevation (528 feet). Within 50 miles contains significant variations in elevation (1,493 feet).

The area within 2 miles of Barkly West is covered by shrubs (91%), within 10 miles by shrubs (82%), and within 50 miles by shrubs (59%) and grassland (33%).