Climate Insights for Warsaw

The climate in Warsaw is temperate. The average annual temperature is 10°C and approximately 641mm of precipitation falls per year. Warsaw receives a notable amount of rainfall throughout the year, including during its driest month. Warsaw is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, February, December, when temperatures can drop to -2°C. Light snow can occur between January and December.

Temperatures in Warsaw vary considerably across the year, with a 28°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 26°C and the mean temperature sits around 20°C. The coldest month is January, when overnight lows fall to -2°C and the daily average is 0°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between September and October, with a 6°C shift in average temperatures.

Warsaw is a relatively dry area, receiving approximately 641mm of precipitation annually, which averages out to around 53mm per month. The wettest month is July, averaging 77mm of rainfall. August and May also tend to see above-average precipitation. The driest month is March, with just 36mm. That's 41mm less than July, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Light snowfall can occur between January and December, totalling around 41cm annually. January is the snowiest month with approximately 15cm.

Warsaw is mildly breezy, with an average annual wind speed of 17km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 19km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 15km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 19km/h in winter, 18km/h in spring, 16km/h in summer, 17km/h in autumn.

It is currently spring in Warsaw, which began on March 20, 2026. Warsaw is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 26°C, while the coldest stretch bottoms out in January near -2°C. Summer is next, beginning on June 21, 2026 — 90 days from now.

The best time to visit Warsaw is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 65mm per month. By contrast, January can be quite cold with temperatures dropping to -2°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Warsaw based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.