San Marino Weather in January
In San Marino, January brings low daytime temperatures around 9°C (48°F), with nights cooling to 3°C (37°F). Expect quite a bit of rainfall this month.
Rainfall in San Marino in January
Historically, the month has about 12 days of rain, averaging 66 mm (2.6 in) in total. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in San Marino in January
Expect highs of 9°C (48°F) in San Marino in January, with nights dropping to around 3°C (37°F). January is part of winter. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. At 3°C (37°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions. This time of year is characterized by the coolest but still temperate weather of all the months.
Sunshine in San Marino in January
The city usually sees around 67 hours of sunlight, indicating fewer sunny days.
Average water temperature in January
With water at 13°C (55°F), it's on the cooler side. Keen swimmers won't be put off, but those who prefer warm water may find it less enjoyable.January in San Marino has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit San Marino, check out our San Marino's climate page.
San Marino Temperature in January
Min Temperature
3°C (37°F)
Max Temperature
9°C (48°F)
Water Temperature
13°C (55°F) *
Chance of Rain
41%
Precipitation
66 mm (2.6 in)
Rainy days
12 days
Humidity
83% *
Sunshine
67 hours *
Percentage Sunshine
35% *
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in San Marino typically stay consistent throughout January, with daily highs averaging around 9°C (48°F). Nights are cold, with lows around 1°C (34°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for San Marino in January
Browse day-by-day weather records for San Marino spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
San Marino historical weather extremes in January
According to our 49 years of weather records for San Marino, the following extremes were recorded between 1976 and 2025.
- The hottest January day on record in San Marino reached 20°C (68°F) (January 28, 2025).
- The lowest daytime temperature in January was -6°C (21°F), recorded on January 8, 1985.
Best Places in San Marino in January
Find out more about the weather in San Marino and which places have the best travel conditions in this month. See all of San Marino in January →
perfect weather
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unpleasant
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What to Wear in San Marino in January
Cold weather calls for smart layering in January. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Rain gear is recommended, you can expect wet weather on multiple days. The water temperature sits at about 13°C (55°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. With limited sunshine expected, sunglasses aren't a priority for packing.What To Do in San Marino in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit San Marino, check out our San Marino's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full San Marino climate overview or explore weather in San Marino.
