No

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

68°F20°C & Partly Cloudy

Wind is 8 mph13 km/h from the South, gusting to 17 mph28 km/h
September 2
8am68°F20°C8 mph14 km/h SouthPartly Cloudy
9am68°F20°C8 mph14 km/h SouthPartly Cloudy
10am68°F20°C8 mph14 km/h SoutheastPartly Cloudy
11am67°F19°C8 mph13 km/h SoutheastMostly Cloudy
12pm66°F19°C7 mph11 km/h SoutheastPartly Cloudy
1pm64°F18°C7 mph10 km/h SoutheastMostly Cloudy
2pm62°F17°C7 mph12 km/h SoutheastMostly Cloudy
3pm60°F16°C8 mph13 km/h SoutheastMostly Cloudy
4pm59°F15°C8 mph14 km/h EastMostly Cloudy
5pm58°F14°C9 mph14 km/h EastMostly Cloudy
6pm58°F14°C9 mph14 km/h EastMostly Cloudy
7pm58°F14°C9 mph14 km/h SoutheastCloudy
DateLowHighWindDayNight
September 155°F13°C68°F20°C8 mph12 km/h from SoutheastMostly CloudyMostly Cloudy
September 257°F14°C65°F18°C11 mph18 km/h from SoutheastRainPartly Cloudy
September 357°F14°C68°F20°C9 mph15 km/h from SouthPartly CloudyMostly Clear
September 458°F14°C72°F22°C7 mph11 km/h from SoutheastPartly CloudyPartly Cloudy
September 559°F15°C71°F22°C7 mph11 km/h from EastDrizzleCloudy
September 661°F16°C70°F21°C8 mph13 km/h from SoutheastMostly CloudyMostly Cloudy
September 758°F14°C69°F20°C8 mph12 km/h from SoutheastDrizzlePartly Cloudy

Yes

Low of 57°F14°C, High of 65°F19°C
Wind: 11 mph18 km/h
Precipitation: 79% rain

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