Yes

you do need a jacket based on the weather in Tromsø, Norway 1 second ago

Why? Because the air feels like the cozy middle ground between summer and winter!
53°F11°C & Mostly Clear

Wind is 3 mph5 km/h from the East, gusting to 5 mph8 km/h
September 1
4pm52°F11°C3 mph6 km/h EastMostly Clear
5pm51°F11°C4 mph6 km/h EastPartly Cloudy
6pm50°F10°C4 mph6 km/h EastPartly Cloudy
7pm49°F9°C4 mph6 km/h EastPartly Cloudy
8pm49°F9°C4 mph6 km/h EastMostly Cloudy
9pm49°F9°C4 mph6 km/h EastMostly Cloudy
10pm49°F9°C4 mph6 km/h EastMostly Cloudy
11pm49°F10°C4 mph6 km/h EastMostly Cloudy
September 2
12am50°F10°C4 mph6 km/h EastCloudy
1am52°F11°C4 mph6 km/h EastCloudy
2am54°F12°C4 mph6 km/h SoutheastCloudy
3am55°F13°C4 mph6 km/h SoutheastCloudy
DateLowHighWindDayNight
August 3145°F7°C60°F15°C2 mph4 km/h from NorthPartly CloudyPartly Cloudy
September 149°F9°C66°F19°C4 mph6 km/h from SouthDrizzleDrizzle
September 252°F11°C65°F18°C3 mph6 km/h from SoutheastMostly CloudyDrizzle
September 353°F12°C66°F19°C4 mph6 km/h from SoutheastPartly CloudyPartly Cloudy
September 454°F12°C63°F17°C3 mph4 km/h from WestRainRain
September 550°F10°C63°F17°C3 mph5 km/h from SouthwestMostly ClearPartly Cloudy
September 648°F9°C65°F18°C4 mph7 km/h from SouthMostly ClearPartly Cloudy

Yes

Low of 48°F9°C, High of 65°F19°C
Wind: 4 mph6 km/h
Precipitation: 31% rain

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