Climate and Average Weather Year Round at Prague Václav Havel Airport Czechia

At Prague Václav Havel Airport, the summers are comfortable; the winters are very cold, snowy, and windy; and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 25°F to 76°F and is rarely below 9°F or above 86°F.

Based on the tourism score, the best time of year to visit Prague Václav Havel Airport for warm-weather activities is from late June to late August.

The warm season lasts for 3.4 months, from May 27 to September 9, with an average daily high temperature above 67°F. The hottest month of the year at Prague Václav Havel Airport is July, with an average high of 74°F and low of 55°F.

The cold season lasts for 3.6 months, from November 16 to March 4, with an average daily high temperature below 42°F. The coldest month of the year at Prague Václav Havel Airport is January, with an average low of 25°F and high of 35°F.

At Prague Václav Havel Airport, 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 at Prague Václav Havel Airport begins around April 18 and lasts for 5.6 months, ending around October 6.

The clearest month of the year at Prague Václav Havel Airport is July, during which on average the sky is clear, mostly clear, or partly cloudy 57% of the time.

The cloudier part of the year begins around October 6 and lasts for 6.4 months, ending around April 18.

The cloudiest month of the year at Prague Václav Havel Airport is November, during which on average the sky is overcast or mostly cloudy 65% of the time.

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

The wetter season lasts 4.0 months, from May 4 to September 4, with a greater than 25% chance of a given day being a wet day. The month with the most wet days at Prague Václav Havel Airport is June, with an average of 9.8 days with at least 0.04 inches of precipitation.

The drier season lasts 8.0 months, from September 4 to May 4. The month with the fewest wet days at Prague Václav Havel Airport is February, with an average of 4.7 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone at Prague Václav Havel Airport is June, with an average of 9.8 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 34% on June 10.

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. Prague Václav Havel Airport experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year at Prague Václav Havel Airport. The month with the most rain at Prague Václav Havel Airport is July, with an average rainfall of 2.6 inches.

The month with the least rain at Prague Václav Havel Airport is February, with an average rainfall of 0.5 inches.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Prague Václav Havel Airport experiences some seasonal variation in monthly snowfall.

The snowy period of the year lasts for 4.2 months, from November 13 to March 20, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow at Prague Václav Havel Airport is January, with an average snowfall of 2.4 inches.

The snowless period of the year lasts for 7.8 months, from March 20 to November 13. The least snow falls around July 23, with an average total accumulation of 0.0 inches.

The length of the day at Prague Václav Havel Airport varies extremely over the course of the year. In 2024, the shortest day is December 21, with 8 hours, 3 minutes of daylight; the longest day is June 20, with 16 hours, 23 minutes of daylight.

The earliest sunrise is at 4:52 AM on June 16, and the latest sunrise is 3 hours, 9 minutes later at 8:01 AM on December 31. The earliest sunset is at 4:00 PM on December 11, and the latest sunset is 5 hours, 16 minutes later at 9:16 PM on June 24.

Daylight saving time (DST) is observed at Prague Václav Havel Airport during 2024, starting in the spring on March 31, lasting 6.9 months, and ending in the fall on October 27.

The figure below presents a compact representation of key lunar data for 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

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 at Prague Václav Havel Airport, 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 1% of 1% throughout.

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 at Prague Václav Havel Airport experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 5.3 months, from October 30 to April 7, with average wind speeds of more than 9.2 miles per hour. The windiest month of the year at Prague Václav Havel Airport is January, with an average hourly wind speed of 10.8 miles per hour.

The calmer time of year lasts for 6.7 months, from April 7 to October 30. The calmest month of the year at Prague Václav Havel Airport is August, with an average hourly wind speed of 7.7 miles per hour.

The predominant average hourly wind direction at Prague Václav Havel Airport is from the west throughout the year.

To characterize how pleasant the weather is at Prague Václav Havel Airport throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Prague Václav Havel Airport for general outdoor tourist activities is from late June to late August, with a peak score in the first week of August.

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Prague Václav Havel Airport for hot-weather activities is from mid July to mid August, with a peak score in the first week of August.

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season at Prague Václav Havel Airport typically lasts for 6.2 months (188 days), from around April 16 to around October 21, rarely starting before March 29 or after May 5, and rarely ending before October 3 or after November 10.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Based on growing degree days alone, the first spring blooms at Prague Václav Havel Airport should appear around April 25, only rarely appearing before April 14 or after May 9.

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 28 to August 17, with an average daily incident shortwave energy per square meter above 5.4 kWh. The brightest month of the year at Prague Václav Havel Airport is June, with an average of 6.4 kWh.

The darker period of the year lasts for 3.6 months, from October 26 to February 16, with an average daily incident shortwave energy per square meter below 2.0 kWh. The darkest month of the year at Prague Václav Havel Airport is December, with an average of 0.9 kWh.

For the purposes of this report, the geographical coordinates of Prague Václav Havel Airport are 50.101 deg latitude, 14.260 deg longitude, and 1,198 ft elevation.

The topography within 2 miles of Prague Václav Havel Airport contains only modest variations in elevation, with a maximum elevation change of 197 feet and an average elevation above sea level of 1,172 feet. Within 10 miles contains only modest variations in elevation (1,060 feet). Within 50 miles contains very significant variations in elevation (2,936 feet).

The area within 2 miles of Prague Václav Havel Airport is covered by cropland (54%) and artificial surfaces (43%), within 10 miles by cropland (52%) and artificial surfaces (28%), and within 50 miles by cropland (52%) and trees (33%).