Heidelberg Temperatures: Monthly Averages and Year-Round Insights
On this page, we’ll explore Heidelberg’s temperature statistics in detail, including day and night variations, monthly averages, and other controlling factors.
Monthly Temperature Averages
The climate in Heidelberg is known for significant temperature differences throughout the year. Typically, daytime temperatures range from a comfortable 26°C in July to a chilly 5°C in the coolest month, January. Nights are cooler, with temperatures generally dropping to -1°C, particularly during the colder months.
The chart below illustrates the average day and night temperatures in Heidelberg throughout the year:
The minimum temperature is often recorded between 4 AM and 6 AM, while the highest temperature is usually reached at 3 PM. During this time the sun's heating effect is the strongest.
July, the city’s warmest month, also receives about 74 mm of rainfall spread over roughly 14 days. For more information, please visit our Heidelberg Precipitation page.
Annual Temperatures in Germany Compared
The map below shows the annual temperature across Germany. You can also select the different months in case you are interested in a specific month.
very warm
warm
pleasant
moderate
cold
very cold
Heidelberg Temperatures Compared World Wide
Heidelberg’s average annual maximum temperature is 16°C. Let’s compare this with some popular tourist destinations:
In Lisbon, Portugal, the average annual temperature is 21°C, offering warm summers and mild, rainy winters.
In Toronto, Canada, the average annual temperature is 13°C, with snowy winters and warm summers.
Chicago, USA, has a significant seasonal range, with an average annual temperature of 15°C.
In Tokyo, Japan, the average annual temperature is 21°C, expect warmer summers and milder winters than Amsterdam.
How are these Temperatures Measured?
Generally, temperature data depicting climate is usually given over a 30-year average in order to reduce short-term fluctuations and reveal better long-term trends in climate conditions.
This temperature data is taken from land-based thermometers, ocean buoys, ships, and satellites. These measurements are transmitted to weather stations and climate centers around the globe where they are processed, averaged, and analyzed in order to monitor the trends and create climate models.
Effects of Temperature on Weather and Climate
Temperature variations influence precipitation patterns in Amsterdam:
Rainfall: Warm air holds more moisture, leading to heavier rain during warmer months. However, precipitation is generally moderate year-round.
Snow: Occasional snowfall occurs in winter, though it rarely lasts very long.
For more detailed information about Heidelberg’s weather, including monthly rainfall, sunshine hours, and humidity levels, visit our Heidelberg climate page.
Current temperature in Heidelberg
4 m/s
partly cloudy and small chance of slight rain
5 m/s
overcast and heavy rain
4 m/s
partly cloudy and chance of slight rain
