Warsaw in September
Almost as busy as August, but cooler (19 °C by day) and drier, with the Chopin festival, the Warsaw Autumn and the marathon on the last Sunday.
Is September a good time to visit Warsaw?
September is one of the busiest months in Warsaw, at about 69/100. If you can move your dates, January is far calmer.
Book things to do
Tours and tickets in Warsaw, from our booking partner.
Free cancellation
What’s on in September
- Chopin and His Europe festival (late August to early September)
- Warsaw Autumn contemporary music festival (September)
- Warsaw Marathon (last Sunday of September)
Best days in September
Weekdays are almost always calmer than weekends.
Tue is normally the calmest day of the week.
Best hours in September
The daily rhythm, hour by hour.
The 9:00 AM window is usually the calmest of the day.
Weather in September
Typical highs, lows and wet days.
How September compares
Every month in Warsaw, ranked by how calm it is.
Quieter alternatives
If your dates are flexible, these months are calmer in Warsaw.
Where to stay
The next September weekend, Friday to Sunday, for two adults (Sep 3 – 5, 2027). Change the dates on Booking.com; outside peak season, nightly rates tend to be lower.
Frequently asked questions
Is September a good month to visit Warsaw?
September is one of the busiest months in Warsaw, at about 69/100. If you can move your dates, January is far calmer.
How crowded is Warsaw in September?
Warsaw sits at roughly 69/100 in September on our crowd scale, which is 8 points above the yearly average. The quietest month is January.
What is the weather like in Warsaw in September?
Expect highs around 19°C and lows near 10°C in September, with about 9 wet days across the month.
Sources
Weather: 1995–2024 averages from the ERA5 climate reanalysis (Copernicus, via Open-Meteo); rain days count days with at least 1 mm.
Monthly crowd index: calculated from recorded overnight stays (table tour_occ_nin2m, 2022–2025; area: Warsaw capital region (PL91)), published byEurostat.
Crowd scores are modelled estimates, not live counts.How the model works
Events, holidays and practical notes are checked against these official pages: