Yes
you do need a jacket based on the weather in Mariehamn, Åland Islands 1 second ago
Why? Because you're not freezing, but you’ll definitely start complaining if it lasts much longer!
40°F4°C & Cloudy
Wind is 11 mph18 km/h from the Southwest, gusting to 19 mph30 km/h
| November 29 | ||||
| 11pm | 40°F4°C | 12 mph19 km/h Southwest | Cloudy | |
| November 30 | ||||
| 12am | 40°F5°C | 13 mph21 km/h Southwest | Cloudy | |
| 1am | 41°F5°C | 15 mph23 km/h Southwest | Cloudy | |
| 2am | 41°F5°C | 17 mph27 km/h Southwest | Windy | |
| 3am | 42°F5°C | 18 mph29 km/h Southwest | Windy | |
| 4am | 42°F6°C | 19 mph30 km/h Southwest | Drizzle | |
| 5am | 42°F6°C | 19 mph31 km/h Southwest | Windy | |
| 6am | 42°F6°C | 19 mph31 km/h Southwest | Windy | |
| 7am | 43°F6°C | 20 mph31 km/h Southwest | Windy | |
| 8am | 42°F6°C | 21 mph33 km/h Southwest | Windy | |
| 9am | 42°F5°C | 22 mph35 km/h Southwest | Windy | |
| 10am | 41°F5°C | 22 mph35 km/h Southwest | Windy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| November 29 | 38°F3°C | 43°F6°C | 19 mph31 km/h from Southwest | Drizzle | Windy |
| November 30 | 40°F4°C | 45°F7°C | 16 mph25 km/h from Southwest | Windy | Windy |
| December 1 | 39°F4°C | 42°F6°C | 19 mph31 km/h from Southwest | Rain | Rain |
| December 2 | 32°F0°C | 39°F4°C | 16 mph25 km/h from North | Windy | Mostly Clear |
| December 3 | 30°F-1°C | 35°F1°C | 6 mph10 km/h from Southeast | Mostly Clear | Mostly Cloudy |
| December 4 | 33°F1°C | 37°F3°C | 14 mph22 km/h from South | Partly Cloudy | Windy |
| December 5 | 35°F2°C | 40°F5°C | 25 mph40 km/h from South | Drizzle | Drizzle |
Yes
Low of 40°F5°C, High of 45°F7°CWind: 16 mph25 km/h
Precipitation: None