Yes
you do need a jacket based on the weather in Porvoo, Finland 1 second ago
Why? Because just cool enough for a jacket, but not warm enough to ditch it!
54°F12°C & Mostly Clear
Wind is 3 mph5 km/h from the West, gusting to 5 mph8 km/h
| September 19 | ||||
| 3pm | 54°F12°C | 3 mph6 km/h West | Mostly Clear | |
| 4pm | 53°F12°C | 4 mph7 km/h West | Partly Cloudy | |
| 5pm | 52°F11°C | 5 mph7 km/h West | Mostly Cloudy | |
| 6pm | 52°F11°C | 4 mph7 km/h West | Mostly Cloudy | |
| 7pm | 52°F11°C | 5 mph7 km/h Southwest | Mostly Cloudy | |
| 8pm | 51°F11°C | 4 mph7 km/h Southwest | Mostly Cloudy | |
| 9pm | 52°F11°C | 4 mph7 km/h Southwest | Mostly Cloudy | |
| 10pm | 53°F12°C | 5 mph8 km/h Southwest | Cloudy | |
| 11pm | 55°F13°C | 7 mph11 km/h South | Cloudy | |
| September 20 | ||||
| 12am | 57°F14°C | 8 mph13 km/h South | Cloudy | |
| 1am | 58°F14°C | 10 mph15 km/h South | Rain | |
| 2am | 58°F14°C | 11 mph18 km/h South | Rain | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 18 | 52°F11°C | 62°F17°C | 4 mph7 km/h from Northwest | Drizzle | Mostly Cloudy |
| September 19 | 51°F11°C | 64°F18°C | 11 mph18 km/h from Southwest | Rain | Rain |
| September 20 | 59°F15°C | 67°F19°C | 11 mph18 km/h from Southwest | Drizzle | Drizzle |
| September 21 | 49°F9°C | 62°F16°C | 14 mph22 km/h from West | Mostly Cloudy | Mostly Clear |
| September 22 | 43°F6°C | 54°F12°C | 10 mph16 km/h from West | Mostly Cloudy | Mostly Clear |
| September 23 | 39°F4°C | 54°F12°C | 8 mph14 km/h from Northwest | Mostly Clear | Mostly Clear |
| September 24 | 41°F5°C | 58°F15°C | 9 mph14 km/h from West | Partly Cloudy | Mostly Clear |
Yes
Low of 52°F11°C, High of 64°F18°CWind: 11 mph18 km/h
Precipitation: 86% rain