Weather in Warsaw

Rain is about 629 mm of rain spread through the year. The wettest month is July at 76 mm; the driest is February at 38 mm.

Warsaw is in Poland at 52.2°N. The 2001–2020 NASA POWER daily record describes a continental climate with a wide temperature swing. July is the warmest month (average 20.3°C, high 25.7°C) and January is the coolest (average -3.9°C, low -6.8°C). On this site the months that score closest to a 22°C day, lighter rain, and moderate humidity are June, July, and August.

When Warsaw gets wet

Annual rainfall is 629 mm. July leads at 76 mm; February is lightest at 38 mm.

A rainy day here is a day with at least 1 mm in the NASA POWER series. July averages 14 such days; February averages 10.

Hot and cool months in Warsaw

Warsaw has a 24.2°C gap between its coolest monthly average (-3.9°C in January) and its warmest (20.3°C in July). That is a northern-hemisphere pattern.

Mean high across all twelve months is 13.1°C and mean low is 4.2°C. These are 20-year grid averages, so a city station can read a few degrees warmer or cooler.

The calendar in Warsaw

January is the coolest month, with lows around -6.8°C and highs near -1.0°C. Rainfall is 45 mm. February is the driest month, averaging only 38 mm across 10 rainy days. Highs sit near 1.4°C. March stands apart from the months beside it: 7.2°C / -1.9°C and 39 mm. April: 14.3°C high, 3.0°C low, 41 mm rain, 74% humidity. In May, Warsaw averages 19.5°C by day and 8.6°C at night, with 74 mm of rain. June brings 67 mm and 13 rainy days; temperatures run from 12.4°C to 23.1°C.

July is both the hottest and wettest month: highs around 25.7°C, 76 mm of rain, and 67% humidity. August: 25.7°C high, 14.3°C low, 62 mm rain, 66% humidity. In September, Warsaw averages 20.3°C by day and 9.6°C at night, with 52 mm of rain. In October, Warsaw averages 13.4°C by day and 4.5°C at night, with 49 mm of rain. November: 6.7°C high, 0.9°C low, 43 mm rain, 91% humidity. December stands apart from the months beside it: 1.1°C / -3.8°C and 44 mm.

Best months to visit Warsaw

The three months with the highest comfort score are June, July, and August: June (17.7°C average, 67 mm, 69% humidity); July (20.3°C average, 76 mm, 67% humidity); August (20.0°C average, 62 mm, 66% humidity). They fall in calendar order. The score rewards averages near 22°C, lower rainfall, and humidity near 60%. It is a climate score, not a festival or price calendar.

If you prefer the hottest stretch, that is July. The coolest stretch is January.

How Warsaw compares inside Poland

Warsaw is the only Poland city in this dataset, so the figures on this page are the national sample we publish. They still come from the same NASA POWER daily series (2001–2020) used everywhere else on the site.