The temperatures in Olsztyn in September are usually low and can range between 10°C and 19°C.
You can expect about 3 to 8 days of rain in Olsztyn 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 Olsztyn in September 2024.
If you’re planning to visit Olsztyn in the near future, we highly recommend that you review the 14 day weather forecast for Olsztyn before you arrive.
Temperatures
19° / 10°
Rainy Days
4
Snowy Days
0
Dry Days
26
Rainfall
64
mm
Sun Hours
9.3
Hrs
