July Weather in Heidelberg, South Africa

Last updated: August 31, 2025

In July, the average temperature in Heidelberg, South Africa hovers around 10°C (51°F). While you may experience a chilly minimum of -4°C (24°F), the temperatures can rise to a pleasant maximum of 26°C (79°F). Expect minimal rainfall, with just 2 mm (0.1 in) over 0 days, and enjoy the relatively high average humidity of 71%.

July Temperature in Heidelberg

In July in Heidelberg, the average temperature is 10°C (51°F), with maximums reaching up to 26°C (79°F) and minimums plummeting to as low as -4°C (24°F). This varied climate makes it essential to pack layers for your trip to fully enjoy everything the destination has to offer.

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

The chart illustrates July 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, July typically has an average temperature of 10°C (51°F), with highs reaching up to 26°C (79°F) and lows dropping to around -4°C (24°F).

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

July Precipitation in Heidelberg

In Heidelberg in July, the precipitation amount is 2 mm (0.1 in) during a span of 0 days.

July Precipitation Trends in Heidelberg

The chart displays monthly precipitation patterns in Heidelberg, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Heidelberg, July typically receives around 2 mm (0.1 inches) of precipitation spread over approximately 0 days.

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

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Millimeters (mm) Inches (in)

July Humidity in Heidelberg

In Heidelberg in July, humidity is 71%. With an average temperature of 10°C (51°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities less inviting and requiring extra layers to stay comfortable while exploring.

July Average Humidity in Heidelberg

This chart illustrates the average monthly humidity levels in Heidelberg, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Heidelberg is approximately 71%, offering insight into how humid the weather typically is during this month.

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

July UV Index in Heidelberg

In Heidelberg in July, 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 July

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

Data source: Heidelberg July 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 July 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 July’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 July’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