Yes
you do need a jacket based on the weather in Vantaa (Myyrmäki), Uusimaa, Finland 1 second ago
Why? Because it's cool. Pleasantly cool, but cool.
55°F13°C & Clear
Wind is 4 mph7 km/h from the W, gusting to 11 mph17 km/h
| September 19 | ||||
| 5pm | 55°F13°C | 5 mph8 km/h W | Clear | |
| 6pm | 54°F12°C | 5 mph8 km/h W | Clear | |
| 7pm | 53°F12°C | 5 mph8 km/h W | Clear | |
| 8pm | 52°F11°C | 5 mph8 km/h W | Clear | |
| 9pm | 52°F11°C | 5 mph8 km/h W | Clear | |
| 10pm | 51°F11°C | 5 mph8 km/h W | Clear | |
| 11pm | 51°F10°C | 5 mph8 km/h W | Clear | |
| September 20 | ||||
| 12am | 51°F10°C | 5 mph8 km/h W | Clear | |
| 1am | 52°F11°C | 5 mph8 km/h W | Clear | |
| 2am | 54°F12°C | 5 mph8 km/h W | Clear | |
| 3am | 57°F14°C | 6 mph9 km/h W | Mostly Clear | |
| 4am | 61°F16°C | 6 mph10 km/h W | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 18 | 49°F9°C | 68°F20°C | 3 mph5 km/h from W | Mostly Clear | Clear |
| September 19 | 51°F10°C | 69°F21°C | 6 mph10 km/h from W | Mostly Clear | Mostly Clear |
| September 20 | 46°F8°C | 60°F15°C | 8 mph13 km/h from NW | Mostly Clear | Mostly Clear |
| September 21 | 38°F3°C | 54°F12°C | 4 mph6 km/h from NW | Mostly Cloudy | Cloudy |
| September 22 | 44°F7°C | 57°F14°C | 6 mph10 km/h from S | Mostly Cloudy | Mostly Cloudy |
| September 23 | 53°F12°C | 63°F17°C | 10 mph16 km/h from S | Mostly Cloudy | Drizzle |
| September 24 | 53°F12°C | 61°F16°C | 9 mph15 km/h from SW | Rain | Mostly Cloudy |
Yes
Low of 51°F11°C, High of 69°F21°CWind: 6 mph10 km/h
Precipitation: None