Usually average temperatures are Geneva right-through October is 9, with highs being around 15 degrees celsius and a low of 7 celsius. We have put some more information here:

MonthDegrees Celsius
High Temperature15
Low Temperature7
Sunshine Per Day5

Geneva, Switzerland Weather in October FAQs

During the month, what is the weather like?

It should be roughly 9 celsius during the month but naturally the temperate does change throughout the day

On average whats the weather difference summer vs. winter?

Winter to Summer average temperatures change by 9 change in average daily temperature

How cold can it get?

Typically you can expect lows to be around 7.Click to see more Geneva Weather including Geneva, Switzerland September Weather and Geneva, Switzerland November Weather