The average minimum temperature (usually the minimum temperature is noted during the night) in Düsseldorf in October is 7.6°C (45.68°F). The amount of rain in October is normal with an average of 67mm (2.6in). The average maximum daytime temperature lies around 15.0°C (59°F). The sun will occasionally show itself with 110 hours of sunshine during the whole month. 

So what to wear in October? Visitors traveling to Düsseldorf should plan on bringing a waterproof rain jacket since it will often be raining. Plan on layering your clothes. Some days or part of the day it will be nice and warm and some moments it can be a bit chilly.