One-pager
September in Rzeszów lands around 20.1°C in the day and 11.7°C at night with 11.4 rainy days and about 8.5 sunshine hours. With 3 top outdoor landmarks and 3 popular museums, you can keep the plan moving even when showers roll in.
Crowds
Price level
Average sunshine
Month read
September in Rzeszów brings mild 20°C days, cool 12°C nights and frequent showers, yet 3 standout outdoor landmarks plus 3 top museums keep attractions very strong. Medium crowds and prices help too, but plan for ~11 rainy days by mixing castle/palace walks.
If the weather is on your side
Letni Pałac Lubomirskich
landmark
Book your trip
Best for
A trip where you want top monuments and a museum plan you can switch to quickly when rain hits
Travelers who like daytime walking but prefer to end the day indoors as temperatures cool to about 11.7°C at night
Those who enjoy a mix of outdoor landmarks and museums without committing to a purely outdoors itinerary
Travel pulse
Snapshot
| Average daytime temperature | 20.1C |
|---|---|
| Average night temperature | 11.7C |
| Monthly rainfall | 77.9 mm |
| Rainy days | 11.4 days |
| Humidity | 76.4% |
| Average sunshine | 8.5 h |
How The Month Feels
September feels mild in the daytime (around 20.1°C) but cooler after dark (about 11.7°C). With 11.4 rainy days and roughly 8.5 sunshine hours, the city works best when you plan for both outdoor sightseeing and indoor time.
What To Lock In Early
Keep bookings flexible for outdoor hours because rain frequency is high, but reserve museum visits when you can. If you’re keen on the top, very popular landmarks and the leading museum, plan those segments ahead so you can hold your preferred time slots.
What to do
How to do it
Plan cue
Schedule the landmark trio earlier in the day and keep the museums for afternoon or after showers
Plan cue
Build a two-track itinerary: one outdoor half-day and one museum half-day, then swap based on the forecast
Plan cue
If you’re choosing between indoor museums, start with Muzeum Okręgowe w Rzeszowie
Practical trip tips
Keep exploring
Broaden the session
If this month looks too wet, compare cities where indoor anchors and flexible walking windows may work harder for you.
Quick answers
Usually yes, as long as the weather, pace, and trip style line up with what you want from the visit.
Expect around 20.1°C by day and 11.7°C at night, with 77.9 mm of rain across roughly 11.4 rainy days.
Layers, light rain protection, and comfortable shoes are the safest combination.
It can. The month usually works best when museums, churches, galleries, or other covered landmarks carry the core of the day and outdoor time stays flexible.