No

you don't need a jacket based on the weather in 53100 Siena, Province of Siena, Italy 7 minutes ago

64°F18°C & Partly Cloudy

Wind is 3 mph5 km/h from the Southeast, gusting to 6 mph10 km/h
August 2
12am64°F18°C3 mph5 km/h SoutheastPartly Cloudy
1am65°F18°C4 mph6 km/h SoutheastMostly Clear
2am68°F20°C4 mph7 km/h SoutheastMostly Clear
3am71°F22°C6 mph9 km/h SoutheastPartly Cloudy
4am75°F24°C8 mph12 km/h SouthPartly Cloudy
5am78°F25°C8 mph13 km/h SouthPartly Cloudy
6am80°F27°C9 mph15 km/h SouthMostly Cloudy
7am81°F27°C10 mph16 km/h SouthwestMostly Cloudy
8am82°F28°C10 mph17 km/h SouthwestMostly Cloudy
9am80°F27°C10 mph15 km/h WestDrizzle
10am80°F27°C8 mph13 km/h WestPartly Cloudy
11am79°F26°C9 mph15 km/h WestMostly Clear
DateLowHighWindDayNight
August 164°F18°C82°F28°C8 mph13 km/h from SouthwestPartly CloudyMostly Clear
August 260°F16°C77°F25°C5 mph8 km/h from NorthDrizzleClear
August 357°F14°C81°F27°C5 mph8 km/h from NorthPartly CloudyMostly Clear
August 458°F15°C87°F31°C3 mph5 km/h from NorthClearClear
August 562°F17°C90°F32°C4 mph6 km/h from EastMostly ClearPartly Cloudy
August 663°F17°C91°F33°C4 mph6 km/h from SouthwestMostly ClearClear
August 764°F18°C91°F33°C5 mph8 km/h from WestClearClear

No

Low of 60°F16°C, High of 77°F25°C
Wind: 5 mph8 km/h
Precipitation: 40% rain

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