June Weather in Johannesburg, South Africa

Last updated: August 31, 2025

June in Johannesburg, South Africa, offers a unique blend of temperatures and weather conditions. With a maximum of 24°C (76°F) and an average of 11°C (51°F), residents and visitors can expect pleasantly mild days. However, they should also be prepared for chilly nights, with temperatures dropping to as low as -4°C (24°F). Rainfall is minimal, with only 6 mm (0.2 in) recorded over the month and just one day of precipitation, allowing plenty of opportunities to enjoy the outdoors. The humidity level sits at a comfortable 73%, creating a refreshing atmosphere perfect for exploring the vibrant city.

June Temperature in Johannesburg

In June, Johannesburg experiences a notable dip in temperatures, signaling the heart of winter in South Africa. The minimum temperature plummets to -4°C (24°F), while the average hovers around a brisk 11°C (51°F). Daytime highs reach a comfortable 24°C (76°F), offering a brief respite from the chill. This month marks the transition from cooler autumn months, where temperatures began their gradual decline from previous highs in April and May. June's chilly nights contrast sharply with summer's warmth, emphasizing the city's diverse climatic personality—where you can experience a frost-kissed dawn followed by a pleasantly mild afternoon. As snowflakes are a rare delight in this bustling metropolis, locals embrace the cooler months with cozy attire and a warm spirit.

June Weather in Johannesburg: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Johannesburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Johannesburg, June typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec696866615651505763666868
Data source: Temperature data for Johannesburg generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

June Precipitation in Johannesburg

In June, Johannesburg experiences a significant drop in precipitation, with only 6 mm (0.2 in) of rainfall recorded over just one day. This minimalist trend marks a stark contrast to the wetter months earlier in the year, like January and February, which see over 130 mm of rain across multiple days. The transition into winter typically brings drier conditions to the region, and June is no exception, with the city bracing for longer dry spells and only hinting at the dragging rains that will return later in the year. This seasonality highlights Johannesburg's diverse climatic patterns, making it a unique experience for residents and visitors alike.

June Precipitation Trends in Johannesburg

The chart displays monthly precipitation patterns in Johannesburg, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Johannesburg, June typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec13013879631362396397146
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Johannesburg

June in Johannesburg marks a noticeable decline in humidity, dipping to 73%. This reduction signals a shift from the higher moisture levels commonly experienced in the earlier months, with January starting at a humid 79% and gradually playing host to increasingly damp conditions until May, when it peaks at 82%. As winter approaches, the consistent drop in humidity extends into July and August, where it reaches 71% and 68%, respectively. This trend illustrates a transition to drier, more comfortable air, making June a refreshing interlude in Johannesburg's climate, before the humidity begins to slightly rise again in the late spring months.

June Average Humidity in Johannesburg

This chart illustrates the average monthly humidity levels in Johannesburg, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Johannesburg is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%77%77%81%83%73%71%68%74%74%82%81%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Johannesburg

In June, Johannesburg experiences a UV Index of 6, categorized as high, indicating that sun protection is advisable during outdoor activities. This marks a slight reduction from the peak months earlier in the year—January through March—when the index soared to extreme levels of 15 and 13, necessitating minimal exposure times of just 10 minutes. As the seasons shift into winter, June's burn time extends to 25 minutes, providing a bit more leeway, yet it's still crucial to remain vigilant. Notably, the trends reveal a gradual decline in UV intensity leading into mid-year, with a slight resurgence anticipated in the coming months. For comprehensive insights on sun safety and preparation, check the latest Johannesburg UV Index.

Maximum UV Index Levels in Johannesburg for June

The chart shows the monthly maximum UV Index (UVI) for Johannesburg in June, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In June, the maximum UV index in Johannesburg typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15151310766811121416
Data source: Johannesburg June UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

June Sunshine in Johannesburg

In June, Johannesburg basks in a total of 298 hours of sunshine, marking a gentle dip from the vibrant rays of the previous months. While the days are still bright, this month signals the start of winter, contributing to a notable decline compared to the sun-kissed peaks of March, which boasts a robust 354 hours. Interestingly, as the year progresses, Johannesburg generally enjoys an upward trend in sunlight hours, culminating in the sunniest months of November and December, where residents can indulge in an impressive 370 and 371 hours respectively. Overall, June serves as a transitional period, hinting at the cold to come while still providing ample opportunities for outdoor enjoyment.

Monthly Sunshine Duration in Johannesburg: June Highlighted

The June sunshine duration represents the total number of hours Johannesburg experiences direct sunlight during the month of June, excluding cloudy or obstructed periods. This chart compares the sunshine duration of June with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec308h317h354h315h319h298h314h329h337h362h370h371h
Data source: Johannesburg June Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Johannesburg During June

In June, Johannesburg typically enjoys a high probability of sunny weather, with an impressive 83% chance of sunshine gracing the city. This marks a subtle yet reassuring rise from the preceding months of April and May, which both hover around the 80% mark. As the season transitions, the likelihood of clear skies continues to climb, peaking in July at 95%, suggesting that June sets the stage for the delightful sunny days that follow. This trend not only highlights Johannesburg's dry winter climate but also invites both locals and tourists to embrace outdoor activities under the radiant sun, making it a perfect time to explore the city's vibrant culture and scenic landscapes.

Percentage of Sunny Days in June in Johannesburg

The chart illustrates the percentage of sunny days in Johannesburg throughout the year, with June highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Johannesburg experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec29%33%67%81%80%83%95%80%78%61%60%41%
Data source: Johannesburg June chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Johannesburg in June

In June, Johannesburg experiences about 10 hours of daylight, a continuation of the trend established in May as the city transitions into the heart of winter. Following a gradual decline from the sunny heights of 13 hours in January, daylight hours have steadily decreased, reaching a relatively stable plateau during this mid-year month. As winter approaches, the daylight duration remains consistent through July, hinting at the seasonal shift that characterizes this vibrant region. Interestingly, daylight begins to stretch again in August, signaling the gradual return of longer days as spring nears, ultimately cycling back to the longer hours enjoyed in the summer months.

Average Daylight Hours in Johannesburg for June

The chart illustrates the variation in daylight duration in Johannesburg throughout the year, with June highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 33m12h 57m12h 12m11h 26m10h 48m10h 30m10h 40m11h 12m11h 56m12h 42m13h 23m13h 44m
Data source: Johannesburg daylight hours, calculated by summing the hours between sunrise and sunset for each day.

June Winds in Johannesburg

In Johannesburg, June brings a gentle increase in wind speed, averaging 2.9 m/s (6 mph)—a slight uptick from the preceding months of April and May. This trend marks a transition towards the breezier conditions characteristic of winter in the region. As the city shifts towards July, the wind maintains this speed before picking up momentum in August, reaching an average of 3.9 m/s (9 mph). This gradual build in wind intensity not only enhances the crisp winter air but also sets the stage for a vibrant transition into the sunnier spring months that lie ahead, where wind speeds peak as high as 4.2 m/s (9 mph) in November. This pattern reflects Johannesburg's dynamic climate, where each month heralds new atmospheric nuances, blending seamlessly into the vibrant tapestry of seasons.

Average June Wind Speed in Johannesburg

The chart displays monthly wind speed patterns in Johannesburg, with values for each month shown alongside June's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how June's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.22.82.62.62.72.9 m/s2.93.93.73.74.23.3
Data source: Johannesburg June wind data, generated using information from the Copernicus Climate Change Service.

How June Weather in Johannesburg Compares to Other Months

Weather in Johannesburg varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in Johannesburg, focusing on differences in temperature, rainfall, humidity, and UV levels.

In June, Johannesburg experiences milder temperatures with minimums around -4°C (24°F) and maximums reaching 24°C (76°F). The average temperature hovers around 11°C (51°F), making it a cooler month overall with low precipitation of just 6 mm (0.2 in) over 1 day and a humidity level of 73%. In contrast, January brings much warmer weather, with minimum temperatures of 9°C (48°F) and maximums soaring to 33°C (92°F). The average temperature during this month is significantly higher at 20°C (69°F), accompanied by increased precipitation of 130 mm (5.1 in) across 14 days and a humidity level of 79%. For more detailed insights, you can check this link: Johannesburg weather in January.

The weather in June and February in Johannesburg presents a notable contrast. June experiences cooler temperatures, ranging from a minimum of -4°C (24°F) to a maximum of 24°C (76°F), with an average of 11°C (51°F), and it sees minimal precipitation of just 6 mm (0.2 in) over only one day. In stark contrast, February enjoys much warmer temperatures, with a minimum of 10°C (51°F) and a maximum of 31°C (87°F), averaging 20°C (68°F). Additionally, February is significantly wetter, accumulating 138 mm (5.4 in) of rainfall across 16 days. Humidity levels are relatively similar between the two months, hovering around 73% in June and 77% in February, contributing to the overall climate difference. For a detailed look at February weather in Johannesburg, you can check Johannesburg weather in February.

The weather in June is characterized by a much cooler range than March, with temperatures ranging from a minimum of -4°C (24°F) to a maximum of 24°C (76°F) and an average of 11°C (51°F). In contrast, March enjoys warmer temperatures, featuring a minimum of 8°C (46°F), an average of 19°C (66°F), and a peak of 30°C (86°F). Additionally, June experiences significantly less precipitation, with just 6 mm (0.2 in) over the course of 1 day, while March sees a much wetter month with 79 mm (3.1 in) spread across 10 days. Humidity levels are fairly similar in both months, with June at 73% and March slightly higher at 77%. For more detailed insights into March weather specifically, you can visit Johannesburg weather in March.

When comparing the weather in June and April, we see notable differences in temperature and precipitation patterns. June experiences a wider temperature range, with minimums dropping as low as -4°C (24°F) and maximums reaching up to 24°C (76°F), while averaging around 11°C (51°F). Precipitation is minimal, averaging only 6 mm (0.2 in) over just 1 day, and humidity is comparatively lower at 73%.

In contrast, April typically has milder temperatures, with minimums around 3°C (38°F), averages of 16°C (61°F), and maximums hitting 29°C (85°F). However, April is also notable for its higher rainfall, with 63 mm (2.5 in) spread across about 10 days, leading to increased humidity at 81%.

For more details, you can check the comprehensive information at Johannesburg weather in April.

In comparing the weather between May and June, we observe some notable differences. May tends to be slightly warmer on average, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 26°C (78°F), while June shows a broader range with a minimum of -4°C (24°F) and a maximum of 24°C (76°F). Precipitation levels are higher in May, with 13 mm (0.5 in) recorded over just one day, compared to June's 6 mm (0.2 in) on the same number of days. Humidity levels also differ, with May at 82% and June at 73%. For more detailed insights on May's weather, you can visit Johannesburg weather in May.

June and July present relatively similar weather conditions, with both months experiencing a minimum temperature of -4°C (24°F). However, June generally boasts a slightly higher average temperature of 11°C (51°F) compared to July's average of 10°C (51°F). The maximum temperatures are also comparable, with July reaching a high of 25°C (78°F), while June peaks at 24°C (76°F). In terms of precipitation, June sees 6 mm (0.2 in) over just one day, whereas July is much drier, only recording 2 mm (0.1 in) with no rainy days. Humidity levels are also close, with June at 73% and July slightly lower at 71%. For detailed insights into July weather, you can visit Johannesburg weather in July.

In June, temperatures in Johannesburg typically range from a minimum of -4°C (24°F) to a maximum of 24°C (76°F), with an average temperature of 11°C (51°F). The month sees a bit of precipitation at 6 mm (0.2 in) over just one day and features relatively high humidity at 73%. In contrast, August offers slightly milder conditions, with temperatures ranging from -1°C (30°F) to a more comfortable maximum of 27°C (80°F), and an average of 14°C (57°F). Notably, August experiences less precipitation at just 3 mm (0.1 in) and zero rainy days, along with slightly lower humidity at 68%. For more details on August weather, you can check out Johannesburg weather in August.

In June, the weather is quite cool with temperatures ranging from a minimum of -4°C (24°F) to a maximum of 24°C (76°F), averaging around 11°C (51°F). The month sees minimal precipitation, with only 6 mm (0.2 in) over just one day and a humidity level of 73%. In contrast, September experiences warmer temperatures, with a minimum of -1°C (31°F) and a maximum of 32°C (91°F), averaging 17°C (64°F). Precipitation increases slightly to 8 mm (0.3 in) over two days, while humidity remains similar at 74%. For more detailed information about the weather conditions in September, you can visit Johannesburg weather in September.

In June, the weather is quite cool with temperatures ranging from a minimum of -4°C (24°F) to a maximum of 24°C (76°F). The month receives minimal rainfall, only about 6 mm (0.2 in) over just one day, and the humidity sits at 73%. In contrast, October experiences warmer temperatures, with a minimum of 4°C (40°F) and a peak of 33°C (92°F) on average. This month also sees a significant increase in precipitation to 63 mm (2.5 in) spread across eight days, alongside a slightly higher humidity level of 74%. Overall, October feels much warmer and wetter compared to the cooler, drier June. For more detailed weather insights, you can visit Johannesburg weather in October.

June and November present contrasting weather patterns in Johannesburg. In June, temperatures range from a chilly -4°C (24°F) at night, averaging 11°C (51°F) during the day, with a maximum of 24°C (76°F). The month is relatively dry, with only 6 mm (0.2 in) of precipitation over just 1 day and humidity at 73%.

In stark contrast, November experiences much warmer conditions, with nighttime lows of 4°C (40°F) and daytime averages soaring to 20°C (68°F), peaking at a high of 34°C (93°F). This month is also much wetter, receiving 97 mm (3.8 in) of precipitation across 13 days, along with a higher humidity level of 82%. For more detailed insights, check out Johannesburg weather in November.

June and December present strikingly different weather patterns. June boasts cooler temperatures, with a minimum of -4°C (24°F) and an average of 11°C (51°F), peaking at a mild 24°C (76°F). It experiences very little precipitation, with only 6 mm (0.2 in) over the course of about a day, and a moderate humidity level of 73%. In contrast, December is notably warmer, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 34°C (93°F), and an average temperature of 20°C (69°F). December brings considerable rainfall, totaling 146 mm (5.7 in) spread over 19 days, and slightly higher humidity at 81%. For more details about December weather, check out Johannesburg weather in December.

Compare Johannesburg's Climate with Cities Worldwide

Conclusion: What to Expect From June Weather in Johannesburg

June in Johannesburg marks a shift as the city experiences its coolest temperatures of the year, with chilly nights often requiring warm layers. Unlike the warmer preceding months, daytime highs reach a comfortable 24°C (76°F), providing a pleasant reprieve. Rain becomes scarce, with only a single day of precipitation throughout the month, leaving behind a dry atmosphere and relatively high humidity lingering around 73%. This unique blend of conditions makes June an ideal time for outdoor activities under the crisp winter sun. For a deeper dive into the city's weather patterns, explore Johannesburg Climate.