Rome and Florence are close in September. Rome averages 16–28°C with high crowds; Florence 14–25°C with moderate crowds.
By Daan · Last reviewed October 2026
Rome and Florence
The verdict for September
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.
Summer warmth with real breathing room.
+Warm, settled weather + thinning crowds
–Early September can still feel like peak summer
September is one of Florence’s best months: the heat eases, crowds thin out after the summer peak, and the Rificolona lantern festival lights up the streets around 7 September.
Scores and crowd levels are my own judgement; temperatures are monthly averages. Higher scores are better: quieter, cheaper and more pleasant.
Another month