Italy Milan Weather in September — Climate Guide
September in Milan is very-high
September is very-high for Milan.
Milan Fashion Week + ideal autumn. Hotels surge 2-3x.
Travel score
Milan September Weather Stats
Avg High
25°C
Avg Low
15°C
Rainy Days
8
80mm total
Sunshine
7h
Daily avg
Humidity
70%
moderate
UV Index
6
High
Wind
8 km/h
Gusts 18
Sea Temp
0°C
no swimming
Crowds
Very busy
At attractions
September Sunrise & Sunset
Air Quality
PM2.5
22 μg/m³
PM10
38 μg/m³
Status
moderate
Feels-Like Temperature & Wind
Feels like
Daytime
25°C
Nighttime
15°C
Humidity and wind affect how the actual temperature feels.
Wind
8 km/h
Max gust 18 km/h
Activities Recommended for September
September Travel Pros & Cons
Pros
- Climate 15-25°C ideal
- Milan Fashion Week
- Atmospheric autumn
Cons
- Hotels surge Fashion Week
September Events & Festivals
- Milan Fashion Week (Women's S/S)
Milan in September — Full Picture
Milan Fashion Week + ideal autumn. Hotels surge 2-3x.
What to Wear & What to Pack
Mild autumn.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
18.3°C
8°C
9/mo
Summer (Jun·Jul·Aug)
29°C
18°C
7.7/mo
Autumn (Sep·Oct·Nov)
Current18°C
10°C
9/mo
Winter (Dec·Jan·Feb)
7.7°C
0.7°C
7/mo
Milan Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 7° | 0° | 7d·60mm | 3h | 80% | 1 | Moderate | Low season | |
| 9° | 1° | 7d·60mm | 4h | 75% | 2 | Busy | Peak | |
| 14° | 4° | 8d·70mm | 5h | 70% | 3 | Moderate | Shoulder | |
| April (Best) | 18° | 8° | 9d·80mm | 6h | 70% | 5 | Busy | Peak |
| May (Best) | 23° | 12° | 10d·90mm | 7h | 70% | 6 | Very busy | Peak |
| June (Best) | 27° | 16° | 8d·75mm | 8h | 65% | 7 | Very busy | Peak |
| 30° | 19° | 7d·65mm | 10h | 65% | 9 | Very busy | Peak | |
| 30° | 19° | 8d·95mm | 9h | 65% | 8 | Moderate | Shoulder | |
| September (Best) | 25° | 15° | 8d·80mm | 7h | 70% | 6 | Very busy | Peak |
| October (Best) | 18° | 10° | 9d·100mm | 5h | 75% | 4 | Busy | Peak |
| 11° | 5° | 10d·100mm | 3h | 80% | 2 | Moderate | Shoulder | |
| 7° | 1° | 7d·60mm | 3h | 80% | 1 | Busy | Peak |
View Other Months
Milan September Hotel Picks
Frequently Asked Questions
Is September a good time to visit Milan?
Milan in September is very-high. Tourist crowds are very busy and flight/hotel prices are peak.
What's the average temperature in Milan in September?
Milan September averages a high of 25°C and a low of 15°C.
Does it rain much in Milan in September?
Milan September averages 80mm of rainfall over about 8 rainy days.
What should I wear in Milan in September?
Mild autumn.
What time are sunrise and sunset in Milan in September?
Milan September sunrise is 06:50 and sunset is 19:30, with 12h 40min of daylight.
What's the air quality like in Milan in September?
Milan September air quality (AQI) averages 55, rated Moderate. PM2.5 averages 22μg/m³.
What activities are recommended in Milan in September?
In September, Milan is great for Milan Fashion Week, Duomo, Quadrilatero.
Is September peak season in Milan?
Milan September crowds are very busy and prices are peak. Advance reservations are strongly recommended.
Best Months to Visit Milan
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.