Milan (Milano) weather in December

December in Milan: cold, a little rain, with muggy air — a fair time to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Milan🇮🇹 Italy · Northern Italy · City57
  1. 60Jan
  2. 66Feb
  3. 75Mar
  4. 85Apr
  5. 86May
  6. 80Jun
  7. 73Jul
  8. 74Aug
  9. 87Sep
  10. 76Oct
  11. 62Nov
  12. 57Dec

#12 of 12 months in Milan · #1038 of 1413 destinations to visit in December · comfort 57/100 (tier D)

Days
8°C
Nights
1°C
Wet days
7
Sun
5.3 h
Humidity
85%
Daylight
9 h
Milan, Italy
Photo: Mikhail Nilov · Pexels

Traveller notes on Milan in December

Other months in Milan

Regulars are specific that this month calls for real layers - a cotton sweater and jacket plus an umbrella - since a t-shirt only makes sense on a rare, brightly sunny day rather than as a general bet. Our row backs the cool, damp read, 14.9C over 4.7C nights feeling 2C, with 78.3mm of rain across 8.4 days and only a bare trace of possible snow, 0.9cm, consistent with regulars calling real snow this time of year essentially a non-issue here. Regulars are candid that Milan's weather generally resists prediction, though April is named as typically warmer with its own reputation for rain. The record: humidity 70 percent, 8.8 hours of sun, an 11.4 kph wind and AQI 74.
SweaterAndUmbrellaNotJustAJacket · March · 1 month ago · Read more on Tripadvisor ↗
The June question on this board is air conditioning, and the answer is that it is far from standard in Italy - check the listing and then check the reviews, because a room without it is a different holiday. Our row gives 28.8C reading as 30C over 18C nights, which is hot rather than extreme, at 67 percent humidity. The rain is the part visitors underestimate: 113.4mm across 10.8 days, more than May's, arriving as storms that the boards say tend to come at night and early morning rather than through the sightseeing day. Sunshine is generous at 12.8 hours inside 15.6 of daylight. The record: a dew point of 15.3C, an 11.2 kph wind and AQI 71.
CheckTheRoomHasAir · June · 1 month ago · Read more on Tripadvisor ↗
Regulars put May here in the mid-twenties, warn that the evenings still want a jumper, and say rain is always a possibility. Our row makes that last point firmer than they do: 145.3mm across 15.3 days, so rain falls on half the days of the month, usually as afternoon and evening storms off the plain rather than as grey drizzle. Days reach 22.8C and read as 23C at 71 percent humidity, over 13C nights. The packing answer they give is the right one - short sleeves, long trousers, something warm for after dark, and an umbrella that lives in the bag. Daylight is 14.9 hours with 10.9 of sun. The record: a dew point of 11.3C, an 11.6 kph wind and AQI 62.
LayersAndAnUmbrella · May · 1 month ago · Read more on Tripadvisor ↗
September in Milan is still hot by day - mid-20s, with the worst of the summer gone - and cool enough in the evening for a cardigan, with a folding umbrella as the standing recommendation. The date that dominates the month is Fashion Week in late September, when hotel prices run three or four times normal and, at the top end, past a thousand a night near the Duomo. The crowding is more selective than you would expect: regulars describe the Duomo square and the Galleria as busy when the sun is out and the rest of the city much as usual. Our row's 122.7mm over 10.8 days is why the umbrella. The record: 25.3C days that feel like 27C, 15.1C nights and 10 hours of sun.
ThreeOrFourTimesTheRoomRate · September · 1 month ago · Read more on Tripadvisor ↗

Year-round notes are on Milan's overview. Add your own note from Milan's card on the map.

Milan climate normals — December

Daytime high8°C / 47°F🧥 cold
Nighttime low1°C / 34°F
Feels like (high)6°C / 43°F
Rainfall67 mm / 2.6 in🌦 some rain
Rainy days7 days
Humidity85%💦 very humid
Dew point2°C / 36°F
Sunshine5.3 h/day
Daylight8.8 h
Wind9 km/h / 6 mph
Snowfall5 cm / 2 in
Air quality (US AQI)100🙂 moderate

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Milan in December

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Peak crowdsSant'Ambrogio and Oh Bej! Oh Bej!, Christmas to Epiphany, Christmas holidays in Italy(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Milan's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Toughest weatherMilan's best weather comes in April, May and September — separate windows, not one continuous season.

December coincides with Po valley smog season.

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Best weatherFair weatherToughest weather

What's on in Milan in December

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Hazard

    Po valley smog season

    15 Nov – 28 Feb · usuallyWinter smog

    The valley sits under the Alps with nowhere for the air to go, so still cold weeks stack particulate up until the region bans the oldest cars. In midwinter it is the air, not the weather, that decides the day. Source ↗

  • Festival

    Sant'Ambrogio and Oh Bej! Oh Bej!

    5–10 DecReligious feastCrowded

    The patron saint's day on 7 December brings the old street market around the basilica and the opening night at La Scala, which the city treats as a civic occasion rather than a concert. Source ↗

  • Holiday

    Christmas to Epiphany

    24 Dec – 6 JanChristmas & New YearClosuresCrowded

    Christmas Day, Santo Stefano (26 December), New Year's Day and Epiphany (6 January) are public holidays. Many museums, shops and restaurants close on the 25th and some on the 26th and 1st, while the days between bring Italian families out to nativity scenes, lights and markets. Source ↗

What's on around the world in December →

Nearby, and something's on

Within 300 km of Milan — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Milan?

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Milan in December — FAQ

Is December a good time to visit Milan?
December in Milan: cold, a little rain, with muggy air — a fair time to visit. It ranks #12 of 12 months for Milan on SeasonMap's comfort score (57/100).
What is the weather like in Milan in December?
In December, Milan averages a daily high of 8.4°C and a low of 1°C, with about 66.9 mm of rain over roughly 6.7 rainy days.
What is the air quality in Milan in December?
Milan has a mean US Air Quality Index of about 100 in December.
Does it snow in Milan in December?
Milan sees roughly 5 cm of snowfall in December.

Within 300 km: Como's Citta dei Balocchi light festival around 23 Nov – 6 Jan, and Genoa's Christmas in the caruggi on 1 Dec – 6 Jan.