The bar chart below shows the average monthly peak daytime temperatures at Bonn
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 3.9 | 5.7 | 9.3 | 13.6 | 18.3 | 21.3 | 23 | 22.8 | 19.5 | 14.7 | 8.3 | 4.6 |
°F | 39.1 | 42.2 | 48.8 | 56.5 | 65 | 70.4 | 73.3 | 73.1 | 67.2 | 58.4 | 47 | 40.3 |
Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.
The graph below shows the average rainfall and number of rainy days per month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
mm | 59 | 49 | 55 | 56 | 65 | 80 | 79 | 78 | 65 | 53 | 69 | 69 |
inches | 2.3 | 1.9 | 2.2 | 2.2 | 2.5 | 3.1 | 3.1 | 3.1 | 2.5 | 2.1 | 2.7 | 2.7 |
Rainy days | 17 | 14 | 16 | 15 | 16 | 16 | 15 | 15 | 15 | 14 | 17 | 17 |
Average annual rainfall in Bonn: 833.133mm (328 inches)
The bar chart below shows the average daily sunshine hours in Bonn
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 1.6 | 3 | 3.8 | 5.5 | 6.9 | 6.9 | 7.1 | 6.7 | 5.2 | 3.8 | 2 | 1.4 |
The graph below shows the daily range of temperatures for each month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Min °C | -0.7 | -0.2 | 2.1 | 4.8 | 8.7 | 11.7 | 13.2 | 13.2 | 10.7 | 7.4 | 3.2 | 0.5 |
Max °C | 4.1 | 5.8 | 9.5 | 13.8 | 18.6 | 21.6 | 23.2 | 23.1 | 19.8 | 14.9 | 8.5 | 4.7 |
Min °F | 30.8 | 31.6 | 35.8 | 40.6 | 47.6 | 53 | 55.8 | 55.7 | 51.2 | 45.2 | 37.7 | 32.9 |
Max °F | 35.1 | 37 | 42.4 | 48.7 | 56.5 | 61.9 | 64.8 | 64.6 | 59.4 | 52 | 42.4 | 36.7 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 7.7 | 6.6 | 7 | 9.3 | 13 | 16.6 | 19.2 | 20.3 | 18.7 | 16 | 12.7 | 9.7 |
°F | 45.8 | 43.9 | 44.6 | 48.7 | 55.3 | 61.9 | 66.6 | 68.5 | 65.7 | 60.8 | 54.9 | 49.5 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 14 | 14 | 14 | 13 | 11 | 11 | 10 | 10 | 10 | 11 | 13 | 13 |
mph | 9 | 9 | 9 | 8 | 7 | 7 | 7 | 6 | 7 | 7 | 8 | 8 |
A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.
The graph below shows the average relative humidity.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|
90% | 83% | 77% | 71% | 70% | 71% | 71% | 72% | 77% | 83% | 87% | 90% |
Hottest month: | July | 23°C 73.4°F |
---|---|---|
Driest month: | February | 49mm 1.9ins |
Sunniest month: | August | 6.7hrs |
Coldest month: | January | 3.9°C 39°F |
Wettest month: | June | 80mm 3.1ins |
Warmest sea: | August | 20.3°C 68.5°F |