The temperatures in Bydgoszcz in September are usually low and can range between 11°C and 19°C.
You can expect about 3 to 8 days of rain in Bydgoszcz during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Bydgoszcz in September 2025.
If you’re planning to visit Bydgoszcz in the near future, we highly recommend that you review the 14 day weather forecast for Bydgoszcz before you arrive.
Temperatures
19° / 11°
Rainy Days
4
Snowy Days
0
Dry Days
26
Rainfall
58
mm
Sun Hours
9.7
Hrs
