4 to 23°C
temperature
2593 hours
sunshine per day
225 mm
rain
199 days
dry
145 days
rain
21 days
snow

Climate of Bonn

Bonn has a oceanic climate. There is rainfall during all months of the year. The average annual temperature for Bonn is 14° degrees and there is about 225 mm of rain in a year. It is dry for 171 days a year with an average humidity of 81% and an UV-index of 3.

Climate averages for the whole year

  • Day: the average daily temperature during the day is between 4°C and 23°C
  • Night:the average nighttime temperature is between -1°C and 13°C
  • Rain: it rains 145 days and there is a total of approximately 225 mm rainfall
  • Snow: it snows an average of 21 days per year
  • Sun hours: throughout the year there are 2593 sun hours
Maximum temperature: between 4°C and 23°C
Warmest month: 23°C in July
Coldest month: 4°C in January
Night temperature: between -1°C and 13°C
Dry days: 199 days
Days with rain: 145 days
Days with snow: 21 days
Total rain sum: 225 mm
Hours of sunshine: 2593 hours

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Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for Bonn.

Precipitation graph

This graph shows the average amount of rainfall per month for Bonn.

Climate table of Bonn

In this climate table you can see at a glance what the average weather per month is for Bonn. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Bonn might be like in a given month.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°C) 4 5 10 15 18 21 23 23 19 14 9 5
Night temp. (°C) -1 -1 2 5 7 10 13 13 10 7 4 1
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (mm) 21 13 22 12 23 23 21 18 13 15 18 26
Days with rain 12 9 13 12 14 13 14 12 10 11 12 13
Days with snow 7 5 2 - - - - - - - 1 6
Dry days 12 14 16 18 17 17 17 19 20 20 17 12
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 4 4 6 9 9 9 10 10 9 5 5 4
Wind force (Bft) 3 3 3 2 2 2 2 2 2 2 3 3
UV-index 2 2 3 3 4 5 5 4 4 3 2 2

Best time to visit Bonn

The best time to visit Bonn in Germany is from May through September. In this period you have a pleasant temperature and almost no precipitation. The highest average temperature in Bonn is 23°C in July and the lowest is 4°C in January.

Climate of Bonn by month

What is the average climate in a given month for Bonn? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.

Bonn weather experiences

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