Italy
Best Time to Visit
Siena
Visit in July — score 89/100 · avg high 100°F · 7 rainy days
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See how the best month changes based on your travel style
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Monthly Travel Scores
How we scoreScores reflect weather comfort (35%), dry days (35%), daylight hours (15%), crowd levels (10%), and cost (5%) — weighted for typical travelers preferring warm, dry conditions. Customize weights in the interactive tool.January
February
March
April
May
June
#2July
#1August
#3September
October
November
December
Monthly Weather Data
| Month | Score | Avg °F | High °F | Low °F | Rain Days | Precip (mm) | Daylight | Crowds | Cost |
|---|---|---|---|---|---|---|---|---|---|
| January | 22 | 40° | 57° | 25° | 16 | 62 | 9.1h | Low | Below avg |
| February | 27 | 42° | 60° | 26° | 16 | 63 | 10.3h | Low | Below avg |
| March | 32 | 47° | 67° | 28° | 16 | 62 | 11.6h | Moderate | Average |
| April | 50 | 54° | 75° | 34° | 13 | 50 | 13.2h | High | Average |
| May | 61 | 62° | 84° | 43° | 14 | 57 | 14.5h | Very High | Above avg |
| June | 84 | 72° | 96° | 51° | 9 | 37 | 15.2h | Very High | Above avg |
| July | 89 | 78° | 100° | 58° | 7 | 27 | 14.9h | Very High | Peak pricing |
| August | 82 | 77° | 100° | 57° | 9 | 34 | 13.8h | Very High | Peak pricing |
| September | 62 | 68° | 91° | 49° | 15 | 59 | 12.3h | Very High | Above avg |
| October | 39 | 59° | 80° | 41° | 19 | 75 | 10.8h | High | Average |
| November | 15 | 49° | 68° | 31° | 24 | 97 | 9.5h | Moderate | Below avg |
| December | 18 | 42° | 59° | 26° | 18 | 72 | 8.8h | Low | Below avg |
Seasonal Breakdown
Spring
- Score
- 48/100
- High
- 75°F
- Low
- 35°F
- Rain days
- 14/mo
- Crowds
- high
Spring in Siena (March, April, May) brings average highs of 75°F and lows of 35°F, with about 14 rainy days per month. Expect high tourist crowds and above average accommodation rates. The overall travel score averages 48/100, with May being the strongest month of the season at 61/100.
Summer
- Score
- 85/100
- High
- 99°F
- Low
- 56°F
- Rain days
- 8/mo
- Crowds
- very high
Summer in Siena (June, July, August) brings average highs of 99°F and lows of 56°F, with about 8 rainy days per month. Expect very high tourist crowds and peak pricing accommodation rates. The overall travel score averages 85/100, with July being the strongest month of the season at 89/100.
Fall
- Score
- 39/100
- High
- 79°F
- Low
- 40°F
- Rain days
- 19/mo
- Crowds
- high
Fall in Siena (September, October, November) brings average highs of 79°F and lows of 40°F, with about 19 rainy days per month. Expect high tourist crowds and average accommodation rates. The overall travel score averages 39/100, with September being the strongest month of the season at 62/100.
Winter
- Score
- 22/100
- High
- 59°F
- Low
- 26°F
- Rain days
- 16/mo
- Crowds
- low
Winter in Siena (December, January, February) brings average highs of 59°F and lows of 26°F, with about 16 rainy days per month. Expect low tourist crowds and budget-friendly accommodation rates. The overall travel score averages 22/100, with February being the strongest month of the season at 27/100.
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Fine-Tune Your Siena Trip
Want more control? Adjust the exact weight of every factor — temperature comfort, dry weather, daylight hours, crowd levels, and cost — with interactive sliders and see scores update in real time.