Yes
you do need a jacket based on the weather in Gdańsk, Poland 1 second ago
Why? Because it's cool. Pleasantly cool, but cool!
55°F13°C & Mostly Cloudy
Wind is 9 mph14 km/h from the Southwest, gusting to 18 mph29 km/h
| September 18 | ||||
| 3am | 56°F14°C | 9 mph15 km/h Southwest | Mostly Cloudy | |
| 4am | 59°F15°C | 10 mph17 km/h Southwest | Mostly Cloudy | |
| 5am | 61°F16°C | 11 mph18 km/h Southwest | Cloudy | |
| 6am | 61°F16°C | 11 mph19 km/h Southwest | Cloudy | |
| 7am | 62°F17°C | 12 mph19 km/h Southwest | Cloudy | |
| 8am | 64°F18°C | 12 mph20 km/h Southwest | Cloudy | |
| 9am | 65°F18°C | 11 mph18 km/h Southwest | Cloudy | |
| 10am | 66°F19°C | 11 mph18 km/h Southwest | Cloudy | |
| 11am | 66°F19°C | 10 mph17 km/h Southwest | Cloudy | |
| 12pm | 65°F18°C | 10 mph16 km/h Southwest | Mostly Cloudy | |
| 1pm | 64°F18°C | 9 mph15 km/h Southwest | Mostly Cloudy | |
| 2pm | 63°F17°C | 9 mph15 km/h Southwest | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 17 | 53°F12°C | 66°F19°C | 11 mph17 km/h from Southwest | Cloudy | Mostly Cloudy |
| September 18 | 61°F16°C | 71°F21°C | 12 mph20 km/h from West | Drizzle | Partly Cloudy |
| September 19 | 59°F15°C | 77°F25°C | 8 mph13 km/h from Southwest | Partly Cloudy | Partly Cloudy |
| September 20 | 59°F15°C | 78°F26°C | 9 mph14 km/h from Southwest | Partly Cloudy | Partly Cloudy |
| September 21 | 54°F12°C | 65°F18°C | 8 mph13 km/h from Northwest | Drizzle | Mostly Cloudy |
| September 22 | 50°F10°C | 61°F16°C | 9 mph14 km/h from West | Mostly Cloudy | Partly Cloudy |
| September 23 | 48°F9°C | 59°F15°C | 9 mph15 km/h from North | Partly Cloudy | Partly Cloudy |
No
Low of 61°F16°C, High of 71°F22°CWind: 12 mph20 km/h
Precipitation: 32% rain