Mid-winter · Weather & things to do
Siena in January
This is the coldest month in Siena: highs average 46°F (8°C) and lows 32°F (0°C), with about 2.3 in (58 mm) of rain.
With a comfort score of 54/100 (12th of 12), it's one of the toughest months, held back mainly by cool days.
- Avg high
- 46°F (8°C)
- Avg low
- 32°F (0°C)
- Rain
- 2.3 in (58 mm)
- Humidity
- 89%
- Cloud cover
- 70%
- Daylight
- ~9 h 08 min
- Comfort score
- 54/100 · Fair
What January feels like
It's cool, with highs near 46°F (8°C), so a proper jacket stays on most of the day.
Nights cool to an average low of 32°F (0°C).
Rain is moderate at about 2.3 in (58 mm) for the month.
Only about 9 h 08 min of daylight means early sunsets.
Plan around January
January is one of the lower-scoring months here; the best are April – June and September & October.
- Comfort holds steady from December (56 → 54/100).
- Our Tuscany Hill Towns route recommends Apr – Jun, Sep – Oct, so January falls outside its suggested window.
What to pack for January
- Insulated jackethighs only 46°F
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Siena in January
Weather can go either way, so the picks below mix open-air spots with indoor backups.
Torre del Mangia
Tall tower above Palazzo Pubblico with views of Siena's rooftops.
Museo Civico
Palazzo Pubblico's frescoed halls, including Lorenzetti's Good and Bad Government.
Antica Osteria Da Divo
Restaurant with tables in Etruscan caves beneath the city.
Pasticceria Nannini
Siena's classic café for espresso, ricciarelli and panforte.
Piazza del Campo
Shell-shaped square where the Palio horse race runs in July and August.
Nearby in January
- Chianti in January~18 mi · highs 47°F, 2.3 in rain · similar daytime temperatures, about as wet
- Val d'Orcia in January~24 mi · highs 45°F, 2.3 in rain · similar daytime temperatures, about as wet
- Florence in January~31 mi · highs 48°F, 2.2 in rain · similar daytime temperatures, about as wet
- Piran in January~188 mi · highs 46°F, 2.7 in rain · similar daytime temperatures, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Siena in January: quick answers
Is January a good time to visit Siena?
It's one of the tougher months here, scoring 54/100, held back mainly by cool days. The best months are April – June and September & October. Expect highs of 46°F (8°C) and 2.3 in (58 mm) of rain. Our Tuscany Hill Towns route recommends Apr – Jun, Sep – Oct, so January is outside its suggested window.
How cold is Siena in January?
Average highs are 46°F (8°C) and average lows 32°F (0°C), making it the coldest month by daytime highs.
Does it rain a lot in Siena in January?
Not much: about 2.3 in (58 mm) of rain falls across January on average, the 6th-driest month of the year. The annual total is about 28.6 in (727 mm).
What should I pack for Siena in January?
Bring insulated jacket (highs only 46°F) and comfortable walking shoes (most places below are best reached on foot or with short walks).
Planning Siena in January?
Plan it together in TripsCircle: one itinerary, one shared packing list and costs split as you go.