Warsaw Weather in August

August weather

August is warm, with afternoons around 26°C and cooler nights near 15°C. Rain falls on about 11 days, so a shower can interrupt a walk without taking over your whole visit. July is just as warm and wetter; September is cooler and drier.

You'll have long days for the Old Town, the Royal Route and riverside walks along the Vistula Boulevards. A sudden shower can make a long outdoor plan less appealing, so save the POLIN Museum or the Copernicus Science Centre for rainy hours.

Events and summer crowds

On August 1, Warsaw marks the anniversary of the 1944 Warsaw Uprising. At 5pm, sirens sound across the city, and people stop to observe a minute of silence. It's a moving moment, but it can feel intense if you're not expecting it.

The Chopin concerts in Łazienki Park continue through summer, with Sunday performances beside the Chopin Monument. Polish school holidays also run through August, and the city gets summer visitors. Expect popular sights and riverside spots to feel busier than in quieter months. Accommodation can cost more than in winter, though August and September are both among Warsaw's best months to visit.

August in Warsaw: local tips

If you hate crowds, head to Łazienki Park on a weekday, then visit the Old Town later in the day. Travelling with kids? The wide riverside paths make an easy break from museum visits.

For the Chopin concert, bring a picnic and find a seat on the grass near the monument; the performance is outdoors, so rain can affect your plans. If you're in central Warsaw at 5pm on August 1, pause somewhere safe when the sirens sound rather than trying to cross a busy street.