Italy
Milan in September: weather & travel advice
This month's data profile
Strong month under the current formula
Milan in September is climatically well suited to city breaks, family holidays and active holidays and hiking. The average daily high is around 24 °C. With about 11 rainy days it is wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
81/100 · #1
Warmth
#4
Dryness
#7
Sun
#6
Published best categories: Overall, City break, Active, Family
Milan · SeptemberPhoto: Giorgio Galeotti · CC BY 4.0Climate facts
- Average high
- 24 °C
- Average low
- 14 °C
- Rainy days (est.)
- 11 rainy days (est.)
- Sun (est.)
- 5 h/day
- Humidity
- 70 %
For your trip planning
September: cooler than August, warmer than October
In Milan, September's average highs of 24 °C fall between a warmer August (29 °C) and a cooler October (19 °C). Precipitation is substantial throughout, with 99 mm in September and 110 mm in October. With average lows of 14 °C, an extra layer for the evenings makes sense. September is among our best months overall and for city trips.
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Score |
|---|---|---|---|---|---|---|---|---|
| August | 29 | 19 | 11 | 85 | 7.0 | 65 | 1.1 | 69 |
| September (selected) | 24 | 14 | 11 | 99 | 5.1 | 70 | 1.2 | 81 |
| October | 19 | 10 | 10 | 110 | 3.1 | 76 | 1.3 | 69 |
How do the previous and next months compare?
Baseline: September (81/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | |
|---|---|---|---|---|---|---|---|---|
| August | -12 | +4.7 °C | +4.4 °C | +0.8 | -13.1 mm | +1.9 h | -4.7 % | -0.1 m/s |
| October | -12 | -5.4 °C | -4.2 °C | -0.3 | +11.4 mm | -2 h | +6.9 % | ±0 m/s |
All twelve months in context
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Frequently asked questions
How warm is Milan in September?
The average daily high is around 24 °C, with an average daily low of about 14 °C.
Does it rain a lot in Milan in September?
The curated estimate is about 11 rainy days per month, not a directly measured long-term average. Total precipitation averages around 99 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Milan?
By the climate score, May, June, July and September are the strongest months for Milan. September is one of them.