Siena, Tuscany Climate
Italy
Pop. 53,901 Elev. 342 m / 1,122 ft
TZ: Europe/Rome (UTC+2) ·
Summers in Siena are warm, with June highs around 88°F (31°C), while winters are cool with December lows of 39°F (4°C). Humidity pushes the summer feels-like temperature to around 95°F (35°C). Expect around 57 rainy days annually (34.8 in / 883 mm total). The city averages 142 sunny days per year and around 35 thunderstorm days. Ocean water temperatures reach 81°F (27°C) in summer.
| Temperature | 31°C (88°F) high | 4°C (39°F) low |
| Feels like | 35°C (95°F) high | 4°C (39°F) low |
| Rain | 57 days | 883 mm (34.8 in) /yr |
| Sky | 142 sunny | 35 stormy |
| Wind | 0.6 m/s (1.3 mph) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Apr, May, Jun, Jul, Aug, Oct
Sky & Air by Month
Cloud cover (%)
71
Jan 69
Feb 60
Mar 56
Apr 50
May 25
Jun 31
Jul 40
Aug 46
Sep 46
Oct 59
Nov 69
Dec Humidity (%)
79
Jan 80
Feb 72
Mar 71
Apr 70
May 61
Jun 63
Jul 61
Aug 74
Sep 73
Oct 80
Nov 88
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 55 km Florence Airport, Peretola (FLR)
Ski resort 69 km Area sciistica Pian del Falco
National park 71 km Parco Nazionale delle Foreste Casentinesi, Monte Falterona e Campigna
Mountain peak
(1,513 m) 45 km Poggio del Lupo
Hospital 0 km Centro riabilitativo Il Tamburino
Hiking trail 5 km
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 11°C 52°F | 4°C 40°F | 55 mm 2.2 in | — | 4 |
| February | 12°C 54°F | 4°C 39°F | 121 mm 4.8 in | — | 5 |
| March | 15°C 59°F | 6°C 43°F | 124 mm 4.9 in | — | 8 |
| April | 19°C 66°F | 8°C 47°F | 77 mm 3.0 in | — | 8 |
| May | 22°C 72°F | 10°C 50°F | 93 mm 3.7 in | — | 11 |
| June | 31°C 88°F | 18°C 64°F | 7 mm 0.3 in | — | 24 |
| July | 30°C 86°F | 18°C 64°F | 47 mm 1.9 in | — | 21 |
| August | 31°C 88°F | 18°C 64°F | 65 mm 2.6 in | — | 17 |
| September | 25°C 78°F | 14°C 58°F | 104 mm 4.1 in | — | 13 |
| October | 20°C 68°F | 10°C 49°F | 57 mm 2.2 in | — | 15 |
| November | 14°C 58°F | 6°C 43°F | 72 mm 2.8 in | 17 mm0.7 in | 10 |
| December | 11°C 52°F | 4°C 39°F | 60 mm 2.4 in | — | 6 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 4 | 1 |
| February | 5 | 4 |
| March | 8 | 4 |
| April | 8 | 2 |
| May | 11 | 3 |
| June | 24 | 0 |
| July | 21 | 3 |
| August | 17 | 4 |
| September | 13 | 6 |
| October | 15 | 3 |
| November | 10 | 3 |
| December | 6 | 2 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 15°C 59°F | 7°C 45°F |
| February | 14°C 58°F | 7°C 45°F |
| March | 14°C 58°F | 9°C 47°F |
| April | 18°C 64°F | 12°C 53°F |
| May | 20°C 69°F | 17°C 63°F |
| June | 26°C 79°F | 24°C 75°F |
| July | 27°C 81°F | 26°C 78°F |
| August | 26°C 79°F | 25°C 78°F |
| September | 24°C 76°F | 23°C 73°F |
| October | 22°C 71°F | 16°C 61°F |
| November | 19°C 66°F | 13°C 56°F |
| December | 16°C 61°F | 10°C 49°F |