Paris and Rome are close in September. Paris averages 13–23°C with moderate crowds; Rome 16–28°C with high crowds.
By Daan · Last reviewed October 2026
Paris and Rome
The verdict for September
Best weather, city back to work
+Warm, clear days with summer crowds already gone.
–Trade fairs and Fashion Week tighten hotel availability.
The steadiest weather of the year with a fully functioning city.
Summer ease returns
+Temperatures become more comfortable while summer conditions largely remain.
–Demand remains strong, especially in the first half of the month.
Late September is many Romans' favourite time of year.
Scores and crowd levels are my own judgement; temperatures are monthly averages. Higher scores are better: quieter, cheaper and more pleasant.
Another month