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Average Weather in Gdańsk Poland

In Gdańsk, the summers are comfortable and partly cloudy and the winters are long, chilly, dry, windy, and mostly cloudy. Over the course of the year, the temperature typically varies from 26°F to 73°F and is rarely below 10°F or above 82°F.

The warm season lasts for 3.5 months, from May 26 to September 12, with an average daily high temperature above 65°F. The hottest day of the year is July 27, with an average high of 73°F and low of 56°F.

The cold season lasts for 3.9 months, from November 19 to March 15, with an average daily high temperature below 43°F. The coldest day of the year is February 2, with an average low of 26°F and high of 35°F.

Average High and Low Temperature

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

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

Average Hourly Temperature in GdańskJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMcoldcoolchillyfreezingcomfortable
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < chilly < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The shaded overlays indicate night and civil twilight.

Clouds

In Gdańsk, 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 Gdańsk begins around April 8 and lasts for 6.2 months, ending around October 14. On July 17, 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 14 and lasts for 5.8 months, ending around April 8. On November 27, the cloudiest day of the year, the sky is overcast or mostly cloudy 70% of the time, and clear, mostly clear, or partly cloudy 30% of the time.

Cloud Cover Categories

Cloud Cover Categories in GdańskclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jul 1758%Jul 1758%Nov 2730%Nov 2730%Apr 844%Apr 844%Oct 1444%Oct 1444%partly cloudymostly cloudyclearovercastmostly clear
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Gdańsk varies throughout the year.

The wetter season lasts 7.0 months, from June 7 to January 7, with a greater than 23% chance of a given day being a wet day. The chance of a wet day peaks at 30% on July 6.

The drier season lasts 5.0 months, from January 7 to June 7. The smallest chance of a wet day is 17% on April 24.

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 30% on July 6.

Daily Chance of Precipitation

Daily Chance of Precipitation in GdańskwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Jul 630%Jul 630%Apr 2417%Apr 2417%Jan 125%Jan 125%Jun 723%Jun 723%Jan 724%Jan 724%rainsnowmixed
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

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. Gdańsk experiences some seasonal variation in monthly rainfall.

Rain falls throughout the year in Gdańsk. The most rain falls during the 31 days centered around July 11, with an average total accumulation of 2.2 inches.

The least rain falls around February 19, with an average total accumulation of 0.7 inches.

Average Monthly Rainfall

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.

Snowfall

The sliding 31-day liquid-equivalent quantity of snowfall in Gdańsk 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

Average Liquid-Equivalent Monthly Snowfall in GdańsksnowsnowJanFebMarAprMayJunJulAugSepOctNovDec0.0 in0.5 in1.0 in1.5 in2.0 inJan 310.2 inJan 310.2 inJul 270.0 inJul 270.0 inNov 270.1 inNov 270.1 inMar 130.1 inMar 130.1 in
The average liquid-equivalent snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average rainfall.

Sun

The length of the day in Gdańsk varies extremely over the course of the year. In 2017, the shortest day is December 21, with 7 hours, 18 minutes of daylight; the longest day is June 21, with 17 hours, 14 minutes of daylight.

Hours of Daylight and Twilight

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise is at 4:10 AM on June 17, and the latest sunrise is 3 hours, 57 minutes later at 8:06 AM on December 29. The earliest sunset is at 3:20 PM on December 14, and the latest sunset is 6 hours, 4 minutes later at 9:24 PM on June 24.

Daylight saving time (DST) is observed in Gdańsk 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

Sunrise & Sunset with Twilight and Daylight Saving Time in GdańskJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 174:10 AMJun 174:10 AM9:24 PMJun 249:24 PMJun 24Dec 143:20 PMDec 143:20 PM8:06 AMDec 298:06 AMDec 29Mar 26DSTMar 26DSTDSTOct 29DSTOct 29daynightnightnightnight
The solar day over the course of the year 2017. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

Humidity

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 Gdańsk, 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

Humidity Comfort Levels in GdańskJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Mar 20%Mar 20%Jul 286%Jul 286%drydrycomfortablecomfortablehumidhumid
The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

Wind

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 Gdańsk experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 5.7 months, from October 2 to March 25, with average wind speeds of more than 6.8 miles per hour. The windiest day of the year is January 24, with an average hourly wind speed of 8.3 miles per hour.

The calmer time of year lasts for 6.3 months, from March 25 to October 2. The calmest day of the year is May 24, with an average hourly wind speed of 5.3 miles per hour.

Average Wind Speed

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction in Gdańsk is from the west throughout the year.

Wind Direction

Wind Direction in GdańskJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%westnorthsoutheast
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Water Temperature

Gdańsk is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences significant seasonal variation over the course of the year.

The time of year with warmer water lasts for 2.8 months, from June 29 to September 24, with an average temperature above 60°F. The day of the year with the warmest water is August 10, with an average temperature of 66°F.

The time of year with cooler water lasts for 4.2 months, from December 18 to April 24, with an average temperature below 42°F. The day of the year with the coolest water is February 22, with an average temperature of 36°F.

Average Water Temperature

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

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 3.5 months, from April 29 to August 15, with an average daily incident shortwave energy per square meter above 5.1 kWh. The brightest day of the year is June 24, with an average of 6.4 kWh.

The darker period of the year lasts for 4.0 months, from October 22 to February 21, with an average daily incident shortwave energy per square meter below 1.6 kWh. The darkest day of the year is December 24, with an average of 0.4 kWh.

Average Daily Incident Shortwave Solar Energy

The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Gdańsk are 54.352 deg latitude, 18.646 deg longitude, and 10 ft elevation.

The topography within 2 miles of Gdańsk contains only modest variations in elevation, with a maximum elevation change of 302 feet and an average elevation above sea level of 59 feet. Within 10 miles contains only modest variations in elevation (630 feet). Within 50 miles contains significant variations in elevation (1,112 feet).

The area within 2 miles of Gdańsk is covered by artificial surfaces (85%), within 10 miles by cropland (40%) and water (26%), and within 50 miles by cropland (36%) and water (34%).

Data Sources

This report illustrates the typical weather in Gdańsk, 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Gdańsk.

For each station, the records are corrected for the elevation difference between that station and Gdańsk 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 Gdańsk is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Gdańsk and a given station.

The stations contributing to this reconstruction are: Pruszcz Gdanski (66%, 12 kilometers, south); Gdańsk Lech Wałęsa Airport (32%, 12 kilometers, west); and Khrabrovo Airport (1.6%, 139 kilometers, northeast).

Other Data

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.