No
you don't need a jacket based on the weather in Helsinki, Finland 1 second ago
62°F16°C & Mostly Clear
Wind is 4 mph7 km/h from the Southeast, gusting to 7 mph11 km/h
| September 4 | ||||
| 2pm | 61°F16°C | 4 mph7 km/h Southeast | Mostly Clear | |
| 3pm | 60°F16°C | 4 mph7 km/h Southeast | Partly Cloudy | |
| 4pm | 60°F15°C | 4 mph6 km/h Southeast | Mostly Clear | |
| 5pm | 59°F15°C | 4 mph6 km/h Southeast | Mostly Clear | |
| 6pm | 59°F15°C | 3 mph5 km/h East | Mostly Clear | |
| 7pm | 58°F14°C | 3 mph5 km/h East | Partly Cloudy | |
| 8pm | 58°F14°C | 3 mph5 km/h East | Partly Cloudy | |
| 9pm | 58°F15°C | 4 mph6 km/h East | Partly Cloudy | |
| 10pm | 58°F15°C | 3 mph5 km/h East | Mostly Cloudy | |
| 11pm | 58°F15°C | 3 mph5 km/h East | Mostly Cloudy | |
| September 5 | ||||
| 12am | 59°F15°C | 4 mph6 km/h East | Mostly Cloudy | |
| 1am | 60°F16°C | 4 mph6 km/h East | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 3 | 58°F15°C | 65°F18°C | 3 mph5 km/h from South | Partly Cloudy | Partly Cloudy |
| September 4 | 58°F14°C | 68°F20°C | 5 mph8 km/h from Southeast | Mostly Cloudy | Mostly Cloudy |
| September 5 | 59°F15°C | 69°F21°C | 9 mph15 km/h from East | Mostly Cloudy | Partly Cloudy |
| September 6 | 61°F16°C | 70°F21°C | 8 mph13 km/h from East | Drizzle | Thunderstorms |
| September 7 | 60°F15°C | 68°F20°C | 7 mph11 km/h from East | Drizzle | Partly Cloudy |
| September 8 | 58°F14°C | 68°F20°C | 5 mph9 km/h from Southeast | Drizzle | Mostly Cloudy |
| September 9 | 59°F15°C | 67°F19°C | 6 mph9 km/h from Southeast | Drizzle | Drizzle |
Yes
Low of 58°F15°C, High of 68°F20°CWind: 5 mph8 km/h
Precipitation: None