June Weather in Heidelberg, South Africa

Last updated: August 31, 2025

In June, the average temperature in Heidelberg, South Africa is a comfortable 11°C (51°F). Expect chilly nights with a minimum of -3°C (26°F) and pleasantly warm days peaking at 25°C (78°F). Rainfall is minimal this time of year, with just 5 mm (0.2 in) expected over 0 days, making it a great time for outdoor activities. The average humidity sits at a moderate 73%, providing a refreshing atmosphere.

June Temperature in Heidelberg

In June in Heidelberg, the average temperature is 11°C (51°F), with maximums reaching up to 25°C (78°F) and minimums dropping as low as -3°C (26°F). Travelers should be prepared for a broad range of temperatures, making layering essential for staying comfortable throughout the day.

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

The chart illustrates June temperature patterns in Heidelberg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Heidelberg, June typically has an average temperature of 11°C (51°F), with highs reaching up to 25°C (78°F) and lows dropping to around -3°C (26°F).

Data source: Temperature data for Heidelberg generated using information from the Copernicus Climate Change Service.

June Precipitation in Heidelberg

In Heidelberg in June, the precipitation amount is 5 mm (0.2 in) during a span of 0 days.

June Precipitation Trends in Heidelberg

The chart displays monthly precipitation patterns in Heidelberg, 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 Heidelberg, June typically receives around 5 mm (0.2 inches) of precipitation spread over approximately 0 days.

Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

June Humidity in Heidelberg

In Heidelberg in June humidity is 73%. With an average temperature of 11°C (51°F), this humidity feels like a damp chill that penetrates your clothes, making it a bit uncomfortable for traveling.

June Average Humidity in Heidelberg

This chart illustrates the average monthly humidity levels in Heidelberg, 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 Heidelberg is approximately 73%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Heidelberg

In Heidelberg in June, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Heidelberg, you can refer to this Hourly UV Index in Heidelberg.

Maximum UV Index Levels in Heidelberg for June

The chart shows the monthly maximum UV Index (UVI) for Heidelberg 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 Heidelberg typically reaches 6, which falls under the high exposure category.

Data source: Heidelberg 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.

How June Weather in Heidelberg Compares to Other Months

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

This table compares monthly weather conditions in Heidelberg, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	21°C (69°F)	121 mm (4.8 inches)	79%	extreme
February Weather	20°C (69°F)	126 mm (5.0 inches)	77%	extreme
March Weather	19°C (67°F)	72 mm (2.8 inches)	77%	extreme
April Weather	16°C (62°F)	60 mm (2.4 inches)	81%	very high
May Weather	13°C (56°F)	14 mm (0.5 inches)	82%	high
June Weather	11°C (51°F)	5 mm (0.2 inches)	73%	high
July Weather	10°C (51°F)	2 mm (0.1 inches)	71%	high
August Weather	14°C (57°F)	2 mm (0.1 inches)	68%	very high
September Weather	18°C (64°F)	9 mm (0.4 inches)	74%	extreme
October Weather	19°C (66°F)	66 mm (2.6 inches)	74%	extreme
November Weather	20°C (69°F)	106 mm (4.2 inches)	82%	extreme
December Weather	20°C (69°F)	156 mm (6.1 inches)	81%	extreme