Climate and Average Weather Year Round in Vryburg South Africa

In Vryburg, the summers are long, hot, and mostly clear and the winters are short, cold, dry, and clear. Over the course of the year, the temperature typically varies from 39°F to 89°F and is rarely below 32°F or above 96°F.

Based on the beach/pool score, the best time of year to visit Vryburg for hot-weather activities is from late November to mid March.

The hot season lasts for 4.3 months, from October 30 to March 6, with an average daily high temperature above 85°F. The hottest month of the year in Vryburg is January, with an average high of 88°F and low of 65°F.

The cool season lasts for 2.6 months, from May 23 to August 10, with an average daily high temperature below 72°F. The coldest month of the year in Vryburg is June, with an average low of 40°F and high of 68°F.

In Vryburg, 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 Vryburg begins around April 11 and lasts for 5.4 months, ending around September 23.

The clearest month of the year in Vryburg is July, during which on average the sky is clear, mostly clear, or partly cloudy 91% of the time.

The cloudier part of the year begins around September 23 and lasts for 6.6 months, ending around April 11.

The cloudiest month of the year in Vryburg is November, during which on average the sky is overcast or mostly cloudy 29% of the time.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Vryburg varies significantly throughout the year.

The wetter season lasts 5.7 months, from October 18 to April 9, with a greater than 18% chance of a given day being a wet day. The month with the most wet days in Vryburg is January, with an average of 10.4 days with at least 0.04 inches of precipitation.

The drier season lasts 6.3 months, from April 9 to October 18. The month with the fewest wet days in Vryburg is July, with an average of 0.3 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Vryburg is January, with an average of 10.4 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 36% on February 2.

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. Vryburg experiences significant seasonal variation in monthly rainfall.

The rainy period of the year lasts for 8.1 months, from September 13 to May 17, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Vryburg is February, with an average rainfall of 2.6 inches.

The rainless period of the year lasts for 3.9 months, from May 17 to September 13. The month with the least rain in Vryburg is July, with an average rainfall of 0.1 inches.

The length of the day in Vryburg varies over the course of the year. In 2024, the shortest day is June 20, with 10 hours, 27 minutes of daylight; the longest day is December 21, with 13 hours, 51 minutes of daylight.

The earliest sunrise is at 5:18 AM on December 1, and the latest sunrise is 1 hour, 52 minutes later at 7:10 AM on July 2. The earliest sunset is at 5:34 PM on June 9, and the latest sunset is 1 hour, 45 minutes later at 7:19 PM on January 12.

Daylight saving time (DST) is not observed in Vryburg during 2024.

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

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 Vryburg, 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 2% of 2% 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 Vryburg experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 5.2 months, from July 17 to December 25, with average wind speeds of more than 8.7 miles per hour. The windiest month of the year in Vryburg is October, with an average hourly wind speed of 10.3 miles per hour.

The calmer time of year lasts for 6.8 months, from December 25 to July 17. The calmest month of the year in Vryburg is March, with an average hourly wind speed of 7.1 miles per hour.

The predominant average hourly wind direction in Vryburg is from the north throughout the year.

To characterize how pleasant the weather is in Vryburg throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best times of year to visit Vryburg for general outdoor tourist activities are from late February to mid May and from mid August to mid November, with a peak score in the second week of April.

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Vryburg for hot-weather activities is from late November to mid March, with a peak score in the last week of December.

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

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 Vryburg typically lasts for 11 months (322 days), from around July 23 to around June 10, rarely starting after August 21, or ending before May 19.

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.

Based on growing degree days alone, the first spring blooms in Vryburg should appear around July 16, only rarely appearing before July 13 or after July 20.

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 significant seasonal variation over the course of the year.

The brighter period of the year lasts for 3.4 months, from October 28 to February 9, with an average daily incident shortwave energy per square meter above 7.5 kWh. The brightest month of the year in Vryburg is December, with an average of 8.2 kWh.

The darker period of the year lasts for 3.0 months, from May 3 to August 4, with an average daily incident shortwave energy per square meter below 5.0 kWh. The darkest month of the year in Vryburg is June, with an average of 4.2 kWh.

For the purposes of this report, the geographical coordinates of Vryburg are -26.957 deg latitude, 24.728 deg longitude, and 3,944 ft elevation.

The topography within 2 miles of Vryburg contains only modest variations in elevation, with a maximum elevation change of 184 feet and an average elevation above sea level of 3,962 feet. Within 10 miles also contains only modest variations in elevation (453 feet). Within 50 miles contains only modest variations in elevation (1,358 feet).

The area within 2 miles of Vryburg is covered by shrubs (64%) and artificial surfaces (27%), within 10 miles by shrubs (77%) and grassland (21%), and within 50 miles by shrubs (35%) and cropland (26%).