Warsaw’s seasons vary from quite hot in the summer to bitterly cold in the winter. The high season is during the warmest months, from May to September. This time of year certainly has the most agreeable weather, but it can also be rainy, especially in July, which has both the hottest temperatures and the highest rainfall. The midsummer months are also the busiest time of the year, both for foreign visitors and locals, so most accommodations and public transportation will be crowded.
January to March are the coldest months with the shortest days—and heavy snowfall can slow the city to a crawl. However, Warsaw is a major European capital city, and therefore has visitors year round. If the cold weather isn’t a concern, winter can offer good rates for accommodation.
Spring and autumn are the shoulder seasons, and arguably the ideal times to visit Warsaw. The weather will be relatively warm during the days and cooler at night, with occasional rain showers. Pair the mild climate with reduced crowds at hotels and attractions, and the shoulder seasons offer great opportunities for exploring the city or the surrounding countryside.
A lively and cosmopolitan city, Warsaw hosts festivals and events throughout the year. Of course, outdoor markets and music festivals happen in spring, summer, and autumn. Alternatively, opera and theater fans should plan their trips from September to June, as most of these productions close down for the summer.