Historical weather data, all-time temperature records, and monthly climate averages for Warsaw, Mazovia, Poland. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5 in Warsaw is a coin-flip for rain — historically, precipitation falls 61% of the time on this date, and there's still a 12% chance of snow. Temperatures have swung wildly over the years, from a balmy 69° in 2016 to a bitter 25° low as recently as 2023, so don't put the layers away just yet.
Warsaw's weather has real range — 66 years of records span from a scorching 96° on July 3, 2025, to a brutal -27° on January 8, 1987, a swing of 123 degrees. A single storm dumped 8.9 inches of snow on January 30, 1979, and a summer downpour delivered 2.3 inches of rain in one day in August 2006.
Warsaw is warmest from late July into early August, when average highs peak around 75°, and coldest in mid-January, when highs barely clear 31°. The wettest stretch comes in mid-June, making early summer the rainiest time to visit. Spring and fall offer mild shoulder seasons, though both can surprise you with cold snaps well into April and October.