When to go · Cologne
Cologne in September
Great month. Inside Cologne's best window: Apr–Oct; also Dec for Christmas markets.
Key facts
- Verdict
- Great
- Temperature
- 20°C68°F / 10°C50°F
- average high / low
- Rain days
- 11
- Crowds
- Medium
- Germany overall
- Prices
- High
- Germany overall
Verdict
GreatBest and avoid months for Cologne
Inside Cologne's best window: Apr–Oct; also Dec for Christmas markets.
Weather in September
- CologneHighs around 20 °C, lows around 10 °C, rain on about 11 daysHighs around 68 °F, lows around 50 °F, rain on about 11 days
- Rhine and the west, Germany · Cologne, Frankfurt, Rhine and Moselle valleys, Heidelbergbest weather
Mildest winters; wine harvest and river trips at their best in September–October.
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Oktoberfest (Munich) big impact
Mid Sep – early Oct (19 Sep – 4 Oct 2026) · Germany
Munich hotels triple in price; trains from Munich crowded in the evenings.
Crowds and prices
- Crowds · Germany overall
- Medium
- Prices · Germany overall
- High
Germany overall: Best all-round month; Oktoberfest starts in the second half and Munich prices triple.
High-price month: see what to book ahead.
What to pack
- A warm layer for the evenings
- A rain jacket or umbrella and shoes that dry fast