Siena · WinterMonth summary
Siena weather in January
⚠️ Fair
🌡️ Temperature min / max
36°F – 50°F
🌧 Rainy days
29% of days
☀️ Sunshine
7.4h per day on average
🌊 🌊 Season
Winter
⭐ ⭐ Weather score
4.8/10
📅 📅 Best month
June (9.0/10)
Quick decision
Should you visit Siena in January?
⚠️ Fair
✅ Yes if: you enjoy winter atmosphere and the lowest prices of the year.
❌ No if: you're looking for sunshine or outdoor activities.
Our take: January is a difficult time for Siena. June (9.0/10) is much more favourable.
By trip type
Siena in January by trip type
- 🏙️ 🏙️ City break / culture : ⚠️ Possible
- 🚶 🚶 Outdoor activities : ❌ Not recommended
- 🏖️ Beach / swimming : ❌ Not recommended
- 💰 💰 Budget : ✅ Low season
Local context
What to expect in January
Winter in Siena is cool (10°F during the day). Days are short (7.4h of sunshine) but the city reveals a different side. Expect rain on 29% of days — a light raincoat in the bag is recommended.
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Annual table
Month-by-month comparison
| Month | Min °F | Max °F | Rain % | Precip in | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌫️ January | 36°F | 50°F | 29% | 0.1in | 7.4h | 4.8/10 |
| ⛅ February | 37°F | 55°F | 33% | 0.1in | 8.8h | 5.7/10 |
| ⛅ March | 39°F | 59°F | 30% | 0.1in | 10.8h | 7.0/10 |
| 🌤️ April | 45°F | 66°F | 32% | 0.1in | 12.2h | 7.4/10 |
| 🌤️ May | 52°F | 72°F | 42% | 0.1in | 12.9h | 7.7/10 |
| ☀️ June | 61°F | 84°F | 22% | 0.1in | 14.1h | 9.0/10 |
| ☀️ July | 66°F | 90°F | 17% | 0.0in | 14.3h | 8.5/10 |
| ☀️ August | 66°F | 90°F | 19% | 0.0in | 13.0h | 8.2/10 |
| 🌤️ September | 59°F | 79°F | 28% | 0.1in | 11.7h | 8.3/10 |
| 🌤️ October | 52°F | 70°F | 27% | 0.1in | 9.8h | 7.5/10 |
| ⛅ November | 43°F | 59°F | 39% | 0.1in | 8.0h | 5.6/10 |
| 🌫️ December | 37°F | 52°F | 34% | 0.1in | 7.0h | 4.6/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In January, Siena averages 50°F, 29% rainy days and 7.4h of sunshine per day. Overall weather score: 4.8/10.
See methodology →
Comparison
January vs June (best month)
The best month is June (score 9.0/10). Difference:
- 🌡️ Max temperature : +19°F
- 🌧 Rainy days : -7%
- ☀️ Sunshine : +6.7h/day
FAQ
FAQ — Siena in January
Is January a good time to visit Siena?
January is not recommended for Siena (score 4.8/10). With 29% rainy days and 7.4h of sunshine, consider June (9.0/10) instead.
What's the weather like in Siena in January?
It's cool with 50°F daytime and 36°F at night. 7.4h of sunshine per day. Pack warm clothes and favour indoor visits.
Accommodation
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Activities & tours
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