Heidelberg Weather and Climate: A Comprehensive Guide
The weather in Heidelberg sees moderate temperature fluctuations over the course of a year.
Temperatures can be warm at the high end
to roughly pleasant at the low end.
It maintains moderate precipitation patterns.
Let's now guide you through the climate details for a complete overview.
Average maximum day and minimum night temperature
The weather in Heidelberg changes moderately throughout the year, offering enough variation to appreciate each season. Typically, average maximum daytime temperatures range from a comfortable 27°C in January to a pleasant 20°C in the coolest month, July.
Nights are cooler, with lows often dropping to around 3°C during the colder months. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
On average, Heidelberg receives a reasonable amount of rainfall, with an annual precipitation of 801 mm. The climate in Heidelberg shows significant variation throughout the year. Expect high rainfall in December, with an average of 150 mm of precipitation over 13 rainy days. In contrast, July offers drier and sunnier days, with around 4.2 mm of rainfall over a single rainy day. For more details, please visit our Heidelberg Precipitation page.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Heidelberg offers a pleasant mix of sunny and slightly overcast days. The difference in sunshine hours between July (9.5 hours daily) and February (7.5 hours daily) provides a bit of variety for visitors and residents. Visit our detailed sunshine hours page for more information.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average humidity
The relative humidity is moderate throughout the year in Heidelberg.
The city experiences its highest humidity in February, reaching 70%. In August, the humidity drops to its lowest level at 46%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
partly cloudy and thunder broken clouds and thunder partly cloudy and rainForecast for Heidelberg
5 m/s
6 m/s
2 m/s
Select a Month of Interest
Check the conditions for any month of the year.
The best time of year to visit Heidelberg in South Africa
During the months of March, April, May and August you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
Yes, the months of May, June, July and August are very dry.
January has an average maximum temperature of 27°C and is the warmest month of the year.
The coldest month is July with an average maximum temperature of 20°C.
December tops the wettest month list with 150 mm of rainfall.
July is the driest month with 4 mm of precipitation.
August is the sunniest month with an average of 284 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
