Typically, this French city experiences a transition from summer to autumn during this month. Average high temperatures gradually decrease from the low 20s Celsius (low 70s Fahrenheit) at the beginning of the month to the high teens Celsius (mid-60s Fahrenheit) by the end. Rainfall is moderate, occurring on average for about half the month. Sunshine hours also decrease as autumn approaches.
Understanding the climatic conditions prevalent in this Alsace region city during this time is crucial for planning any visit. Whether attending the European Parliament session or exploring the historical city center, appropriate clothing and potential itinerary adjustments for rain are essential. Historically, this period marks the shift from the warmer growing season to the harvest season, influencing local activities and traditions.