No
you don't need a jacket based on the weather in Vienna, Austria 1 second ago
64°F18°C & Mostly Cloudy
Wind is 1 mph2 km/h from the South, gusting to 6 mph10 km/h
| September 18 | ||||
| 5am | 65°F18°C | 2 mph3 km/h South | Mostly Cloudy | |
| 6am | 67°F20°C | 2 mph4 km/h South | Partly Cloudy | |
| 7am | 71°F21°C | 3 mph5 km/h Southwest | Partly Cloudy | |
| 8am | 73°F23°C | 4 mph6 km/h Southwest | Mostly Clear | |
| 9am | 75°F24°C | 4 mph6 km/h West | Mostly Clear | |
| 10am | 75°F24°C | 4 mph6 km/h West | Clear | |
| 11am | 75°F24°C | 3 mph5 km/h Southwest | Clear | |
| 12pm | 73°F23°C | 2 mph4 km/h Southwest | Clear | |
| 1pm | 70°F21°C | 2 mph4 km/h South | Clear | |
| 2pm | 67°F20°C | 2 mph4 km/h Southwest | Clear | |
| 3pm | 66°F19°C | 3 mph4 km/h Southwest | Clear | |
| 4pm | 65°F18°C | 3 mph4 km/h West | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 17 | 57°F14°C | 75°F24°C | 2 mph4 km/h from Southwest | Partly Cloudy | Clear |
| September 18 | 58°F14°C | 80°F27°C | 3 mph4 km/h from Northwest | Clear | Clear |
| September 19 | 58°F14°C | 83°F28°C | 8 mph14 km/h from Southeast | Clear | Clear |
| September 20 | 60°F16°C | 82°F28°C | 10 mph16 km/h from Southeast | Mostly Clear | Partly Cloudy |
| September 21 | 62°F17°C | 79°F26°C | 5 mph9 km/h from Northwest | Mostly Clear | Drizzle |
| September 22 | 59°F15°C | 71°F21°C | 6 mph9 km/h from North | Drizzle | Thunderstorms |
| September 23 | 54°F12°C | 64°F18°C | 7 mph12 km/h from Northwest | Drizzle | Drizzle |
Yes
Low of 57°F14°C, High of 80°F27°CWind: 3 mph4 km/h
Precipitation: None