June Weather at Rustenburg South Africa

Daily high temperatures decrease by 3°F, from 70°F to 68°F, rarely falling below 61°F or exceeding 76°F.

Daily low temperatures decrease by 3°F, from 41°F to 38°F, rarely falling below 31°F or exceeding 46°F.

For reference, on February 9, the hottest day of the year, temperatures at Rustenburg typically range from 63°F to 84°F, while on July 4, the coldest day of the year, they range from 37°F to 68°F.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on June. 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.

Ramos Arizpe, Mexico (9,242 miles away); Chilecito, Argentina (5,647 miles); and Salta, Argentina (5,656 miles) are the far-away foreign places with temperatures most similar to Rustenburg (view comparison).

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The month of June at Rustenburg experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 8% throughout the month.

The clearest day of the month is June 12, with clear, mostly clear, or partly cloudy conditions 93% of the time.

For reference, on December 10, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 37%, while on July 23, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 94%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Rustenburg, the chance of a wet day over the course of June is gradually decreasing, starting the month at 3% and ending it at 1%.

For reference, the year's highest daily chance of a wet day is 51% on January 10, and its lowest chance is 1% on July 6.

Rainfall

To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during June at Rustenburg is essentially constant, remaining about 0.2 inches throughout, and rarely exceeding 0.9 inches or falling below -0.0 inches.

Over the course of June at Rustenburg, the length of the day is essentially constant. The shortest day of the month is June 20, with 10 hours, 32 minutes of daylight and the longest day is June 1, with 10 hours, 38 minutes of daylight.

The earliest sunrise of the month at Rustenburg is 6:49 AM on June 1 and the latest sunrise is 8 minutes later at 6:57 AM on June 30.

The earliest sunset is 5:27 PM on June 7 and the latest sunset is 4 minutes later at 5:31 PM on June 30.

Daylight saving time is not observed at Rustenburg during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 5:16 AM and sets 13 hours, 45 minutes later, at 7:01 PM, while on June 20, the shortest day of the year, it rises at 6:56 AM and sets 10 hours, 32 minutes later, at 5:28 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 June 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 at Rustenburg is essentially constant during June, remaining around 0% throughout.

For reference, on February 2, the muggiest day of the year, there are muggy conditions 24% of the time, while on May 11, 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 at Rustenburg is essentially constant during June, remaining within 0.1 miles per hour of 6.7 miles per hour throughout.

For reference, on October 1, the windiest day of the year, the daily average wind speed is 8.6 miles per hour, while on March 31, the calmest day of the year, the daily average wind speed is 5.6 miles per hour.

The hourly average wind direction at Rustenburg throughout June is predominantly from the south, with a peak proportion of 32% on June 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 at Rustenburg typically lasts for 11 months (322 days), from around July 23 to around June 10, rarely starting after September 6, or ending before May 18.

The smallest chance that a given day will be within the growing season at Rustenburg during June is 31% on June 28.

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 at Rustenburg are gradually increasing during June, increasing by 173°F, from 5,404°F to 5,576°F, over the course of the month.

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 at Rustenburg is essentially constant during June, remaining within 0.1 kWh of 4.3 kWh throughout.

The lowest average daily incident shortwave solar energy during June is 4.2 kWh on June 20.