Climate of Siena, Italy
Area-weighted average across Siena. For where people actually live and travel, see the cities below.
Siena, a subdivision of Italy, has a seasonal climate on average. Area-weighted monthly temperatures across the whole territory range from 5.4°C / 41.7°F in January to 22.4°C / 72.3°F in July, with rainfall from 29 mm / 1.1 in to 92 mm / 3.6 in depending on the season (721 mm / 28.4 in total across the year).
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 5.4°C41.7°F | 56 mm2.2″ | — |
| February | 6.1°C43°F | 57 mm2.2″ | — |
| March | 8.4°C47.1°F | 58 mm2.3″ | — |
| April | 11.3°C52.3°F | 65 mm2.6″ | — |
| May | 15.6°C60.1°F | 56 mm2.2″ | — |
| June | 19.2°C66.6°F | 45 mm1.8″ | Sunny & Mild |
| July | 22.4°C72.3°F | 29 mm1.1″ | Sunny & Warm |
| August | 22.3°C72.1°F | 42 mm1.7″ | — |
| September | 18.8°C65.8°F | 67 mm2.6″ | — |
| October | 14.4°C57.9°F | 83 mm3.3″ | — |
| November | 9.6°C49.3°F | 92 mm3.6″ | — |
| December | 6.1°C43°F | 71 mm2.8″ | — |
Frequently asked questions
What is the best time to visit Siena?
The best months to visit Siena, Italy for sunny, dry weather are June, July. The warmest month is July at an area-wide average of 22.4°C / 72.3°F, and the driest is July with about 29 mm / 1.1 in of rainfall.
What is the climate of Siena?
Siena, Italy has area-weighted monthly average temperatures ranging from 5.4°C / 41.7°F in January to 22.4°C / 72.3°F in July. Annual rainfall averages about 721 mm / 28.4 in, with the wettest month being November (92 mm / 3.6 in) and the driest July (29 mm / 1.1 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Siena?
The hottest month in Siena is July, with an area-wide average temperature of 22.4°C / 72.3°F.
What is the coldest month in Siena?
The coldest month in Siena is January, with an area-wide average temperature of 5.4°C / 41.7°F.
When does it rain most in Siena?
The wettest month in Siena is November, averaging about 92 mm / 3.6 in of rainfall. The driest is July with about 29 mm / 1.1 in.