Warsaw Weather in September

Mild days outdoors

September feels like a gentle step into autumn. Days are mild, evenings cooler, and showers are possible, but rain usually won't rule out a full day outside. You can wander the Old Town, stroll the Vistula Boulevards or explore Łazienki Park without August's stronger heat.

Rain falls on about nine days, so keep an indoor stop in mind. The POLIN Museum of the History of Polish Jews is a good pause if a shower catches you. The shorter daylight also means there's less time for a long afternoon of sightseeing than in summer.

Music and local events

Warsaw Autumn, the city's well-known contemporary music festival, takes place in September. Concerts are held at venues around Warsaw, giving you a reason to spend an evening indoors as the air cools.

If you hate crowds, September is easier than the busy summer holiday period. Families and many holidaymakers have left, though popular sights and festival events can still draw visitors. Prices are often gentler than in July and August, but they vary with the dates and demand.

Make the most of your visit

Travelling with kids? The cooler weather makes a walk through the Royal Łazienki gardens more comfortable, and you can stop to see the palace on the water.

For a practical local tip, use the metro to reach POLIN Museum from the city centre, then walk through Muranów. This makes a handy route on a rainy day, with a major museum and a distinctive post-war neighbourhood close together. Pack a small umbrella for the walk between stops; September rain can interrupt an otherwise pleasant day.