SeasonMapSan Marino weather in December
San Marino
December in San Marino: cold, a little rain, with clean air — a fair time to visit.
#11 of 12 months in San Marino · #998 of 1383 destinations to visit in December · comfort 58/100 (tier D)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on San Marino in December
No notes yet. Open San Marino on the map to add the first one.
San Marino climate normals — December
| Daytime high | 8°C / 46°F | 🧥 cold |
|---|---|---|
| Nighttime low | 1°C / 33°F | |
| Feels like (high) | 5°C / 41°F | |
| Sea temperature | 11°C / 51°F | 🥶 cold sea |
| Rainfall | 68 mm / 2.7 in | 🌦 some rain |
| Rainy days | 10 days | |
| Humidity | 85% | 💦 very humid |
| Dew point | 2°C / 35°F | |
| Sunshine | 5.9 h/day | |
| Daylight | 9 h | |
| Wind | 15 km/h / 9 mph | |
| Snowfall | 0.6 cm / 0.2 in | |
| Air quality (US AQI) | 42 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in San Marino 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 of Wonders, school holidays in 7 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for San Marino'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 weatherSan Marino's weather peaks June–August.
Best weatherFair weatherToughest weather
What's on in San Marino in December
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
In-cloud days on Monte Titano
15 Oct – 15 Apr · usuallyFog seasonRiskThe old town sits high enough that the cloud base often sits below it. On those days the famous view of the Adriatic is a white wall, while the coast below is clear.
- Festival
Christmas of Wonders
22 Nov – 6 Jan · usuallyChristmas & New YearCrowdedThe whole walled town becomes a Christmas market from the last Saturday of November to Epiphany, with a rink in the Cava dei Balestrieri. Weekends bring the coaches back and the cable car queues. Source ↗
Nearby, and something's on
Within 300 km of San Marino — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is San Marino?
San Marino in December — FAQ
- Is December a good time to visit San Marino?
- December in San Marino: cold, a little rain, with clean air — a fair time to visit. It ranks #11 of 12 months for San Marino on SeasonMap's comfort score (58/100).
- What is the weather like in San Marino in December?
- In December, San Marino averages a daily high of 7.9°C and a low of 0.8°C, with about 68 mm of rain over roughly 9.6 rainy days.
- What is the air quality in San Marino in December?
- San Marino has a mean US Air Quality Index of about 42 in December.
Other months in San Marino
Compare San Marino in December
Warmer or cooler than San Marino in December
Similar destinations in Southern Europe — December
Within 300 km: Florence's Olive harvest and new oil around 25 Oct – 10 Dec, and Bologna's Christmas markets on 25 Nov – 6 Jan.