Sirmione (Lake Garda) weather in December
Italy

December in Sirmione: cold, a little rain, with muggy air — a good time to visit.
#12 of 12 months in Sirmione · #961 of 1383 destinations to visit in December · comfort 60/100 (tier C)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Sirmione in December
Other months in Sirmione
Sirmione's forum calls September a sweet spot for weather — warm, swimmable and with clearer blue skies than the summer heat haze — but warns the town itself stays genuinely busy, with locals as well as tourists making a weekend trip to the lake if the forecast looks good. Regulars suggest avoiding Sirmione specifically on weekends, even late in the month, if a quieter visit matters more than the crowds.
Add your own note from Sirmione's card on the map.
Sirmione climate normals — December
| Daytime high | 9°C / 47°F | 🧥 cold |
|---|---|---|
| Nighttime low | 3°C / 38°F | |
| Feels like (high) | 7°C / 45°F | |
| Rainfall | 68 mm / 2.7 in | 🌦 some rain |
| Rainy days | 7 days | |
| Humidity | 82% | 💦 very humid |
| Dew point | 3°C / 37°F | |
| Sunshine | 5.6 h/day | |
| Daylight | 8.8 h | |
| Wind | 8 km/h / 5 mph | |
| Snowfall | 4.3 cm / 1.7 in | |
| Air quality (US AQI) | 76 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Sirmione 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.
BusyChristmas holidays in Italy, school holidays in 6 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Sirmione'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 weatherSirmione's best weather comes in April, May and September — separate windows, not one continuous season.
Best weatherFair weatherToughest weather
What's on in Sirmione in December
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Closure
Hotels shut for winter
15 Nov – 15 MarMost hotels and the lake boats stop from mid-November until spring. The thermal baths, the castle and a handful of restaurants stay open, and the old town is finally empty. Source ↗
Nearby, and something's on
Within 300 km of Sirmione — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Sirmione?
Sirmione in December — FAQ
- Is December a good time to visit Sirmione?
- December in Sirmione: cold, a little rain, with muggy air — a good time to visit. It ranks #12 of 12 months for Sirmione on SeasonMap's comfort score (60/100).
- What is the weather like in Sirmione in December?
- In December, Sirmione averages a daily high of 8.5°C and a low of 3.2°C, with about 68.2 mm of rain over roughly 7.3 rainy days.
- What is the air quality in Sirmione in December?
- Sirmione has a mean US Air Quality Index of about 76 in December.
- Does it snow in Sirmione in December?
- Sirmione sees roughly 4.3 cm of snowfall in December.
Other months in Sirmione
Warmer or cooler than Sirmione in December
Similar destinations in Southern Europe — 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.