No

you don't need a jacket based on the weather in Graz, Austria 1 second ago

68°F20°C & Clear

Wind is 1 mph1 km/h from the SW, gusting to 5 mph8 km/h
September 8
4am70°F21°C1 mph2 km/h SClear
5am74°F23°C3 mph4 km/h SClear
6am76°F25°C4 mph6 km/h SEPartly Cloudy
7am78°F26°C5 mph7 km/h SEMostly Cloudy
8am80°F27°C5 mph8 km/h SEMostly Clear
9am81°F27°C5 mph8 km/h SEPartly Cloudy
10am82°F28°C4 mph6 km/h SEMostly Cloudy
11am81°F27°C3 mph5 km/h SEMostly Cloudy
12pm79°F26°C2 mph4 km/h EMostly Cloudy
1pm76°F25°C2 mph3 km/h EMostly Cloudy
2pm74°F23°C2 mph3 km/h NEMostly Cloudy
3pm72°F22°C1 mph2 km/h NCloudy
DateLowHighWindDayNight
September 758°F14°C82°F28°C3 mph5 km/h from SEPartly CloudyRain
September 858°F14°C69°F20°C4 mph7 km/h from NRainPartly Cloudy
September 954°F12°C73°F23°C5 mph9 km/h from NWMostly ClearMostly Clear
September 1051°F10°C74°F23°C4 mph6 km/h from SMostly ClearMostly Clear
September 1154°F12°C73°F23°C4 mph7 km/h from SEDrizzleRain
September 1253°F12°C63°F17°C7 mph12 km/h from NRainRain
September 1351°F11°C61°F16°C9 mph15 km/h from NWRainRain

Yes

Low of 58°F15°C, High of 69°F21°C
Wind: 4 mph7 km/h
Precipitation: 76% rain

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