Average Weather in Warsaw Poland
In Warsaw, the summers are comfortable and partly cloudy and the winters are long, freezing, dry, windy, and mostly cloudy. Over the course of the year, the temperature typically varies from 24°F to 76°F and is rarely below 7°F or above 86°F.
The warm season lasts for 3.7 months, from May 19 to September 9, with an average daily high temperature above 67°F. The hottest day of the year is July 25, with an average high of 76°F and low of 57°F.
The cold season lasts for 3.7 months, from November 18 to March 10, with an average daily high temperature below 41°F. The coldest day of the year is January 17, with an average low of 24°F and high of 33°F.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature
In Warsaw, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.
The clearer part of the year in Warsaw begins around April 1 and lasts for 6.6 months, ending around October 19. On August 11, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 58% of the time, and overcast or mostly cloudy 42% of the time.
The cloudier part of the year begins around October 19 and lasts for 5.4 months, ending around April 1. On November 28, the cloudiest day of the year, the sky is overcast or mostly cloudy 73% of the time, and clear, mostly clear, or partly cloudy 27% of the time.
Cloud Cover Categories
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Warsaw varies throughout the year.
The wetter season lasts 4.2 months, from May 3 to September 9, with a greater than 23% chance of a given day being a wet day. The chance of a wet day peaks at 31% on June 12.
The drier season lasts 7.8 months, from September 9 to May 3. The smallest chance of a wet day is 15% on February 27.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 31% on June 12.
Daily Chance of Precipitation
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Warsaw experiences some seasonal variation in monthly rainfall.
Rain falls throughout the year in Warsaw. The most rain falls during the 31 days centered around July 7, with an average total accumulation of 2.1 inches.
The least rain falls around February 17, with an average total accumulation of 0.5 inches.
Average Monthly Rainfall
The sliding 31-day liquid-equivalent quantity of snowfall in Warsaw does not vary significantly over the course of the year, staying within 0.1 inches of 0.1 inches throughout.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Warsaw varies extremely over the course of the year. In 2017, the shortest day is December 21, with 7 hours, 42 minutes of daylight; the longest day is June 21, with 16 hours, 47 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 4:13 AM on June 17, and the latest sunrise is 3 hours, 31 minutes later at 7:45 AM on December 30. The earliest sunset is at 3:23 PM on December 12, and the latest sunset is 5 hours, 38 minutes later at 9:01 PM on June 24.
Daylight saving time (DST) is observed in Warsaw during 2017, starting in the spring on March 26, lasting 7.1 months, and ending in the fall on October 29.
Sunrise & Sunset with Twilight and Daylight Saving Time
We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.
The perceived humidity level in Warsaw, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 3% of 3% throughout.
Humidity Comfort Levels
This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.
The average hourly wind speed in Warsaw experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 5.9 months, from October 12 to April 8, with average wind speeds of more than 5.4 miles per hour. The windiest day of the year is January 24, with an average hourly wind speed of 6.5 miles per hour.
The calmer time of year lasts for 6.1 months, from April 8 to October 12. The calmest day of the year is August 7, with an average hourly wind speed of 4.4 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Warsaw varies throughout the year.
The wind is most often from the east for 2.3 weeks, from April 22 to May 8, with a peak percentage of 28% on April 27. The wind is most often from the north for 3.1 weeks, from May 8 to May 30, with a peak percentage of 29% on May 29. The wind is most often from the west for 11 months, from May 30 to April 22, with a peak percentage of 48% on January 1.
This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.
The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.
The brighter period of the year lasts for 3.6 months, from April 29 to August 18, with an average daily incident shortwave energy per square meter above 5.2 kWh. The brightest day of the year is June 26, with an average of 6.4 kWh.
The darker period of the year lasts for 3.8 months, from October 24 to February 19, with an average daily incident shortwave energy per square meter below 1.8 kWh. The darkest day of the year is December 23, with an average of 0.6 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Warsaw are 52.230 deg latitude, 21.012 deg longitude, and 341 ft elevation.
The topography within 2 miles of Warsaw contains only modest variations in elevation, with a maximum elevation change of 200 feet and an average elevation above sea level of 337 feet. Within 10 miles also contains only modest variations in elevation (223 feet). Within 50 miles contains only modest variations in elevation (696 feet).
The area within 2 miles of Warsaw is covered by artificial surfaces (96%), within 10 miles by artificial surfaces (47%) and cropland (28%), and within 50 miles by cropland (59%) and trees (25%).
This report illustrates the typical weather in Warsaw, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Warsaw.
For each station, the records are corrected for the elevation difference between that station and Warsaw according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Warsaw is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Warsaw and a given station.
The stations contributing to this reconstruction are: Warsaw Chopin Airport (93%, 8 kilometers, southwest) and Minsk Mazowiecki (7%, 44 kilometers, east).
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.
All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.
Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.
Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.
Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .
Time zones for aiports and weather stations are provided by AskGeo.com .
Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.