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Average Weather at Athens Eleftherios Venizelos International Airport Greece

At Athens Eleftherios Venizelos International Airport, the summers are hot, arid, and clear and the winters are long, cold, windy, and partly cloudy. Over the course of the year, the temperature typically varies from 41°F to 89°F and is rarely below 33°F or above 95°F.

Climate Summary

coldcoolwarmhotwarmcoolJanFebMarAprMayJunJulAugSepOctNovDec99%99%56%56%clearovercastprecipitation: 2.4 inprecipitation: 2.4 in0.2 in0.2 inmuggy: 10%muggy: 10%0%0%drydrybeach/pool score: 9.4beach/pool score: 9.40.00.0
Click on each chart for more information.

Based on the beach/pool score, the best time of year to visit Athens Eleftherios Venizelos International Airport for hot-weather activities is from mid June to early September.

Temperature

The hot season lasts for 3.2 months, from June 6 to September 13, with an average daily high temperature above 83°F. The hottest day of the year is July 31, with an average high of 89°F and low of 72°F.

The cool season lasts for 4.1 months, from November 25 to March 27, with an average daily high temperature below 62°F. The coldest day of the year is January 23, with an average low of 41°F and high of 55°F.

Average High and Low Temperature

Average High and Low Temperature at Athens Eleftherios Venizelos International AirporthotcoolcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F10°F20°F30°F40°F50°F60°F70°F80°F90°F100°FJan 2355°FJan 2355°FJul 3189°FJul 3189°F41°F41°F72°F72°FJun 683°FJun 683°FSep 1383°FSep 1383°FNov 2562°FNov 2562°FMar 2762°FMar 2762°F63°F63°F65°F65°F48°F48°F46°F46°FLowHigh
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 at Athens Eleftherios Venizelos International AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMcoldcoldcoolcoolcomfortablewarmwarmhotvery cold
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < very cold < 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.

Feiluan, China (5,405 miles away) is the far-away foreign place with temperatures most similar to Athens Eleftherios Venizelos International Airport (view comparison).

Clouds

At Athens Eleftherios Venizelos International 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 Athens Eleftherios Venizelos International Airport begins around May 28 and lasts for 4.0 months, ending around September 27. On July 23, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 99% of the time, and overcast or mostly cloudy 1% of the time.

The cloudier part of the year begins around September 27 and lasts for 8.0 months, ending around May 28. On December 13, the cloudiest day of the year, the sky is overcast or mostly cloudy 44% of the time, and clear, mostly clear, or partly cloudy 56% of the time.

Cloud Cover Categories

Cloud Cover Categories at Athens Eleftherios Venizelos International AirportclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jul 2399%Jul 2399%Dec 1356%Dec 1356%May 2877%May 2877%Sep 2777%Sep 2777%clearmostly clearpartly cloudymostly cloudyovercast
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 at Athens Eleftherios Venizelos International Airport varies throughout the year.

The wetter season lasts 6.0 months, from October 15 to April 15, with a greater than 14% chance of a given day being a wet day. The chance of a wet day peaks at 25% on November 27.

The drier season lasts 6.0 months, from April 15 to October 15. The smallest chance of a wet day is 2% on July 25.

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 25% on November 27.

Daily Chance of Precipitation

Daily Chance of Precipitation at Athens Eleftherios Venizelos International AirportwetwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Nov 2725%Nov 2725%Jul 252%Jul 252%Oct 1514%Oct 1514%Apr 1514%Apr 1514%rain
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. Athens Eleftherios Venizelos International Airport experiences significant seasonal variation in monthly rainfall.

The rainy period of the year lasts for 8.0 months, from September 18 to May 20, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around November 24, with an average total accumulation of 2.4 inches.

The rainless period of the year lasts for 4.0 months, from May 20 to September 18. The least rain falls around August 3, with an average total accumulation of 0.2 inches.

Average Monthly Rainfall

Average Monthly Rainfall at Athens Eleftherios Venizelos International AirportrainrainJanFebMarAprMayJunJulAugSepOctNovDec0 in1 in2 in3 in4 in5 in6 inNov 242.4 inNov 242.4 inAug 30.2 inAug 30.2 inSep 180.5 inSep 180.5 inMay 200.5 inMay 200.5 in
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.

Sun

The length of the day at Athens Eleftherios Venizelos International Airport varies significantly over the course of the year. In 2017, the shortest day is December 21, with 9 hours, 32 minutes of daylight; the longest day is June 21, with 14 hours, 48 minutes of daylight.

Hours of Daylight and Twilight

Hours of Daylight and Twilight at Athens Eleftherios Venizelos International AirportJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 8 minMar 2012 hr, 8 minMar 2014 hr, 48 minJun 2114 hr, 48 minJun 2112 hr, 9 minSep 2212 hr, 9 minSep 229 hr, 32 minDec 219 hr, 32 minDec 21nightnightday
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 6:01 AM on June 13, and the latest sunrise is 1 hour, 44 minutes later at 7:45 AM on October 28. The earliest sunset is at 5:04 PM on December 7, and the latest sunset is 3 hours, 46 minutes later at 8:50 PM on June 28.

Daylight saving time (DST) is observed at Athens Eleftherios Venizelos International Airport 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 at Athens Eleftherios Venizelos International AirportJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 136:01 AMJun 136:01 AM8:50 PMJun 288:50 PMJun 28Dec 75:04 PMDec 75:04 PM7:45 AMOct 287:45 AMOct 28Mar 26DSTMar 26DSTDSTOct 29DSTOct 29daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
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 at Athens Eleftherios Venizelos International 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 5% of 5% throughout.

Humidity Comfort Levels

Humidity Comfort Levels at Athens Eleftherios Venizelos International AirportJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Dec 170%Dec 170%Aug 910%Aug 910%humidhumidcomfortablecomfortabledrydrymuggymuggy
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 at Athens Eleftherios Venizelos International Airport experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 5.7 months, from October 3 to March 26, with average wind speeds of more than 10.4 miles per hour. The windiest day of the year is February 4, with an average hourly wind speed of 12.4 miles per hour.

The calmer time of year lasts for 6.3 months, from March 26 to October 3. The calmest day of the year is June 2, with an average hourly wind speed of 8.3 miles per hour.

Average Wind Speed

Average Wind Speed at Athens Eleftherios Venizelos International AirportwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph2 mph4 mph6 mph8 mph10 mph12 mph14 mph16 mph18 mph20 mphFeb 412.4 mphFeb 412.4 mphJun 28.3 mphJun 28.3 mphOct 310.4 mphOct 310.4 mphMar 2610.4 mphMar 2610.4 mph
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 at Athens Eleftherios Venizelos International Airport is from the north throughout the year.

Wind Direction

Wind Direction at Athens Eleftherios Venizelos International AirportJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%westsouthnortheast
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

Athens Eleftherios Venizelos International Airport 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 some seasonal variation over the course of the year.

The time of year with warmer water lasts for 3.3 months, from June 26 to October 3, with an average temperature above 74°F. The day of the year with the warmest water is August 14, with an average temperature of 77°F.

The time of year with cooler water lasts for 4.4 months, from December 16 to April 30, with an average temperature below 62°F. The day of the year with the coolest water is March 2, with an average temperature of 58°F.

Average Water Temperature

Average Water Temperature at Athens Eleftherios Venizelos International AirportwarmcoolJanFebMarAprMayJunJulAugSepOctNovDec55°F60°F65°F70°F75°F80°FAug 1477°FAug 1477°F58°FMar 258°FMar 2Jun 2674°FJun 2674°FOct 374°FOct 374°FDec 1662°FDec 1662°FApr 3062°FApr 3062°F
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Best Time of Year to Visit

To characterize how pleasant the weather is at Athens Eleftherios Venizelos International 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 times of year to visit Athens Eleftherios Venizelos International Airport for general outdoor tourist activities are from mid May to mid July and from mid August to mid October, with a peak score in the third week of September.

Tourism Score

Tourism Score at Athens Eleftherios Venizelos International Airportbest timebest timeJanFebMarAprMayJunJulAugSepOctNovDec02468108.48.42.12.18.38.37.27.2 precipitationprecipitationcloudscloudstemperaturetemperaturetourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

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 Athens Eleftherios Venizelos International Airport for hot-weather activities is from mid June to early September, with a peak score in the last week of July.

Beach/Pool Score

Beach/Pool Score at Athens Eleftherios Venizelos International Airportbest timeJanFebMarAprMayJunJulAugSepOctNovDec02468109.49.40.00.0 precipitationprecipitationcloudscloudstemperaturetemperaturebeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

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.

Growing Season

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 Athens Eleftherios Venizelos International Airport typically lasts for 11 months (334 days), from around February 3 to around January 3, rarely starting after March 9, or ending before December 10.

Time Spent in Various Temperature Bands and the Growing Season

Time Spent in Various Temperature Bands and the Growing Season at Athens Eleftherios Venizelos International Airportgrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Feb 350%Feb 350%Jan 350%Jan 390%Mar 990%Mar 990%Dec 1090%Dec 1034%Jan 1634%Jan 16Jul 18100%Jul 18100%very coldcoldcoolcomfortablewarmhot
The percentage of time spent in various temperature bands: frigid < 15°F < freezing < 32°F < very cold < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The black line is the percentage chance that a given day is within the growing season.

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 Athens Eleftherios Venizelos International Airport should appear around February 10, only rarely appearing before January 25 or after March 4.

Growing Degree Days

Growing Degree Days at Athens Eleftherios Venizelos International AirportJanFebMarAprMayJunJulAugSepOctNovDec0°F1,000°F2,000°F3,000°F4,000°F5,000°FFeb 1087°FFeb 1087°FMay 25900°FMay 25900°FJul 11,800°FJul 11,800°FDec 315,098°FDec 315,098°F
The average growing degree days accumulated over the course of the year, 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 May 8 to August 23, with an average daily incident shortwave energy per square meter above 7.0 kWh. The brightest day of the year is July 6, with an average of 8.2 kWh.

The darker period of the year lasts for 3.5 months, from November 1 to February 15, with an average daily incident shortwave energy per square meter below 3.3 kWh. The darkest day of the year is December 22, with an average of 2.1 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy at Athens Eleftherios Venizelos International AirportbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWh9 kWhJul 68.2 kWhJul 68.2 kWhDec 222.1 kWhDec 222.1 kWhMay 87.0 kWhMay 87.0 kWhAug 237.0 kWhAug 237.0 kWhNov 13.3 kWhNov 13.3 kWhFeb 153.3 kWhFeb 153.3 kWh
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 Athens Eleftherios Venizelos International Airport are 37.936 deg latitude, 23.944 deg longitude, and 266 ft elevation.

The topography within 2 miles of Athens Eleftherios Venizelos International Airport contains only modest variations in elevation, with a maximum elevation change of 384 feet and an average elevation above sea level of 250 feet. Within 10 miles contains only modest variations in elevation (3,369 feet). Within 50 miles also contains extreme variations in elevation (5,889 feet).

The area within 2 miles of Athens Eleftherios Venizelos International Airport is covered by artificial surfaces (36%), cropland (35%), and sparse vegetation (12%), within 10 miles by water (26%) and cropland (22%), and within 50 miles by water (66%).

Data Sources

This report illustrates the typical weather at Athens Eleftherios Venizelos International Airport, 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

Athens Eleftherios Venizelos International Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.

In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.

The stations on which we may fall back are Ellinikón Airport, Elefsis Airport, Tanagra Airport, Skiros Airport, Tripoli Airport, and Kalamata Airport.

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.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.