Verdict: Excellent month
Milan Weather in September
September hits the sweet spot in Milan — highs around 25°C (77°F), ideal for a full day on foot. Expect showers on roughly 11 days of the month — rarely trip-ruining, worth planning around. Overall, September is one of the best months of the year to be in Milan.
Average high
25°C / 77°F
Average low
16°C / 61°F
Rain days
~11
Precipitation
138 mm
What to pack for Milan in September
- Summer clothes, plus one light layer for air-con and evenings
- A packable rain shell or compact umbrella earns its space
- Comfortable walking shoes — every guide on this site assumes you'll use them
September against the rest of the year
Warmest in Milan: Jul (30°C / 86°F) · Coolest: Dec (7°C / 45°F) · Wettest: May (~16 rain days)
8°
0°
Jan
12°
3°
Feb
15°
5°
Mar
18°
8°
Apr
23°
13°
May
28°
18°
Jun
30°
20°
Jul
30°
20°
Aug
25°
16°
Sep
19°
12°
Oct
12°
5°
Nov
7°
1°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)