Como (Lake Como) weather in December
December in Como: cold, a little rain, with muggy air — a good time to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#12 of 12 months in Como · #956 of 1413 destinations to visit in December · comfort 61/100 (tier C)
- Days
- 9°C
- Nights
- 1°C
- Wet days
- 5
- Sun
- 5.4 h
- Humidity
- 81%
- Daylight
- 9 h

Traveller notes on Como in December
Other months in Como
Regulars are specific this counts as one of the hotter, more humid months here, the lake itself providing some relief compared to inland Italy though genuinely real heat still builds through the day. Our row backs that hot, genuinely wet read, 28.6C reading as a scorching 32C, over 18.9C nights feeling 21C, with a substantial 138.4mm of rain across 10 days and humidity at 71 percent. Regulars are consistent thunderstorms can roll through the surrounding mountains and clear again quickly, comparisons with nearby Lake Garda and Lake Maggiore a common forum topic since conditions can genuinely differ lake to lake on the same day. Late June through September all get debated as the better window depending on crowd tolerance. The record: 12.6 hours of sun, a 10.3 kph wind and AQI 53.
Regulars split this month into three: early August is delightful and not yet crowded, the week around the 15th - Ferragosto, Italy's big summer holiday - is the worst for both heat and crowds, and late August eases back on both fronts. Our row backs the heat throughout, 28.2C reading as a real 32C at 71.7 percent humidity, with 154.7mm of rain across 8.6 days - regulars describe those storms as spectacular electric ones that leave the air refreshed afterward rather than just a nuisance. This is high season everywhere on the lake, and one visitor calls August the worst month to travel in Italy generally, for the combined heat, crowds and prices - though the lake itself stays swimmable and beautiful whichever week you land in. The record: 11.6 hours of sun, a 10 kph wind and AQI 50.
The June forecast here reads worse than the month does, and regulars explain why: it is sunny with isolated thunderstorms rather than grey with rain. The storms are heavy, short, spectacular and usually in the evening, so the days survive them. Our row shows exactly that shape - 149.6mm falling across only 10 days, fifteen millimetres apiece, under 12.4 hours of sun inside 15.7 of daylight. Temperatures push towards 30C on their account and our average high is 26.7C, with 17.2C nights. On crowds they place late June and July at the top of the season, still short of August, with Bellagio and Varenna busiest at weekends and public holidays. The record: humidity 72 percent and a 10.3 kph wind.
April on Lake Como is variable and regulars will not promise more than that: a good chance of rain, genuinely cold early mornings and evenings at the start of the month, and sun that does turn up. Our row's 17.6C day over an 8C night reads as 16C and 6C, and carries 103.2mm across only 9 precipitation days - about eleven millimetres a wet day, so the rain here arrives in quantity rather than as drizzle. The practical dividing line is the season itself, which starts nearer the end of the month around Easter: ferries run a limited winter timetable until a fuller one appears a few days into April. Without a car, Varenna is the base they name, on the train line and well served by boat. The 0.3cm of snow in our row is the mountains above the lake. The record: humidity 69 percent, 10.1 hours of sun and AQI 50.
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Como climate normals — December
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Como 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 crowdsCitta dei Balocchi light festival, Christmas holidays in Italy, school holidays in 6 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Como'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 weatherComo's best weather comes in April, May and September — separate windows, not one continuous season.
December coincides with Lake floods the lakefront.
Best weatherFair weatherToughest weather
What's on in Como in December
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Hazard
Lake floods the lakefront
1 Oct – 15 Dec · usuallyFlood seasonClosuresAutumn rain lifts the lake over the walls into Piazza Cavour most years, which is why the city has spent two decades building barriers. Walkways go down and the lakefront cafes shut for days. Source ↗
- Season
Winter: the villages close
10 Nov – 15 MarOff-season shutdownClosuresVillas, most lakeside hotels and the smaller ferry stops shut, and the mid-lake villages go quiet. Como city itself is a working town and does not.
- Festival
Citta dei Balocchi light festival
23 Nov – 6 Jan · usuallyChristmas & New YearCrowdedProjections onto the cathedral and the old town walls, markets and a rink from late November to Epiphany. It is the one reason the town is busy when the boats have stopped. Source ↗
Nearby, and something's on
Within 300 km of Como — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Como?
Como in December — FAQ
- Is December a good time to visit Como?
- December in Como: cold, a little rain, with muggy air — a good time to visit. It ranks #12 of 12 months for Como on SeasonMap's comfort score (61/100).
- What is the weather like in Como in December?
- In December, Como averages a daily high of 8.7°C and a low of 1.1°C, with about 63.4 mm of rain over roughly 5.1 rainy days.
- What is the air quality in Como in December?
- Como has a mean US Air Quality Index of about 53 in December.
- Does it snow in Como in December?
- Como sees roughly 9.9 cm of snowfall in December.
Within 300 km: Milan's Sant'Ambrogio and Oh Bej! Oh Bej! on 5–10 Dec, and Livigno's La Sgambeda around 8–18 Dec.