Bonn Temperatures: Monthly Averages and Year-Round Insights
On this page, we’ll explore Bonn’s temperature statistics in detail, including day and night variations and monthly averages. We’ll also compare the annual temperature to other cities in Germany.
Monthly Temperature Averages
In Bonn, temperatures differ significantly between summer and winter months. Typically, maximum daytime temperatures range from a warm 25°C in July to a cold 6°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 maximum day and minimum night temperatures in Bonn by month:
The early hours of 4 AM to 6 AM often see the lowest temperatures, while 3 PM marks the peak of the day’s heat as the sun’s impact is strongest. July, the city’s warmest month, boasts 210 hours of sunshine.
The chart below shows the average temperature throughout the year:
January, the city’s coldest month, sees about 76 mm of rainfall spread over roughly 17 days. It records 51 hours of sunshine of sunshine.
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
Bonn Temperatures Compared World Wide
Bonn’s average annual maximum temperature is 15°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 contrast, in Zermatt, Switzerland, the average annual temperature is significantly lower at 4°C, with mild summers and very cold winters.
Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with an average annual temperature of 23°C, featuring hot summers and mild winters.
In Brisbane, Australia, the average annual temperature is 26°C, making it warmer than Sydney.
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.
Temperatures in the Mountains
Although not all regions have mountains, elevated areas exhibit distinct temperature variations.
- Sun Exposure: Sunlit slopes tend to be warmer, while shaded areas remain cooler.
- Altitude Effects: Temperatures drop by approximately 6°C for every 1,000 meters of elevation, creating distinct microclimates.
For more detailed information about Bonn’s weather, including monthly rainfall, sunshine hours, and humidity levels, visit our Bonn climate page.
Current temperature in Bonn
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