Average Weather in Antirrio Greece
In Antirrio, the summers are hot, dry, and clear and the winters are long, cold, wet, and partly cloudy. Over the course of the year, the temperature typically varies from 40°F to 93°F and is rarely below 31°F or above 99°F.
Based on the beach/pool score, the best time of year to visit Antirrio for hot-weather activities is from mid June to mid September.
The hot season lasts for 3.0 months, from June 12 to September 12, with an average daily high temperature above 86°F. The hottest day of the year is July 27, with an average high of 93°F and low of 69°F.
The cool season lasts for 4.1 months, from November 23 to March 25, with an average daily high temperature below 62°F. The coldest day of the year is January 22, with an average low of 40°F and high of 55°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 Antirrio, 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 Antirrio begins around May 28 and lasts for 3.8 months, ending around September 23. On July 20, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 97% of the time, and overcast or mostly cloudy 3% of the time.
The cloudier part of the year begins around September 23 and lasts for 8.2 months, ending around May 28. On December 12, the cloudiest day of the year, the sky is overcast or mostly cloudy 51% of the time, and clear, mostly clear, or partly cloudy 49% 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 Antirrio varies significantly throughout the year.
The wetter season lasts 6.3 months, from October 6 to April 15, with a greater than 20% chance of a given day being a wet day. The chance of a wet day peaks at 36% on December 6.
The drier season lasts 5.7 months, from April 15 to October 6. The smallest chance of a wet day is 3% on July 10.
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 36% on December 6.
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. Antirrio experiences significant seasonal variation in monthly rainfall.
The rainy period of the year lasts for 9.7 months, from August 19 to June 8, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around November 27, with an average total accumulation of 4.1 inches.
The rainless period of the year lasts for 2.3 months, from June 8 to August 19. The least rain falls around July 11, with an average total accumulation of 0.3 inches.
Average Monthly Rainfall
The length of the day in Antirrio varies significantly over the course of the year. In 2018, the shortest day is December 22, with 9 hours, 30 minutes of daylight; the longest day is June 21, with 14 hours, 50 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 6:08 AM on June 14, and the latest sunrise is 1 hour, 45 minutes later at 7:53 AM on October 27. The earliest sunset is at 5:12 PM on December 7, and the latest sunset is 3 hours, 48 minutes later at 9:00 PM on June 28.
Daylight saving time (DST) is observed in Antirrio during 2018, starting in the spring on March 25, lasting 7.1 months, and ending in the fall on October 28.
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.
Antirrio experiences some seasonal variation in the perceived humidity.
The muggier period of the year lasts for 3.2 months, from June 21 to September 28, during which time the comfort level is muggy, oppressive, or miserable at least 3% of the time. The muggiest day of the year is August 9, with muggy conditions 13% of the time.
The least muggy day of the year is February 9, when muggy conditions are essentially unheard of.
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 Antirrio experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 5.1 months, from November 5 to April 9, with average wind speeds of more than 7.5 miles per hour. The windiest day of the year is February 24, with an average hourly wind speed of 8.7 miles per hour.
The calmer time of year lasts for 6.9 months, from April 9 to November 5. The calmest day of the year is September 2, with an average hourly wind speed of 6.2 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Antirrio varies throughout the year.
The wind is most often from the west for 7.1 months, from March 5 to October 7, with a peak percentage of 59% on June 13. The wind is most often from the east for 4.9 months, from October 7 to March 5, with a peak percentage of 40% on January 1.
Antirrio 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 3.2 months, from June 30 to October 4, with an average temperature above 74°F. The day of the year with the warmest water is August 14, with an average temperature of 78°F.
The time of year with cooler water lasts for 4.1 months, from December 24 to April 27, with an average temperature below 61°F. The day of the year with the coolest water is February 25, with an average temperature of 57°F.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is in Antirrio 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 Antirrio for general outdoor tourist activities are from early May to late June and from early September to mid October, with a peak score in the last week of May.
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 Antirrio for hot-weather activities is from mid June to mid September, with a peak score in the second week of July.
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 in Antirrio typically lasts for 9.9 months (301 days), from around February 18 to around December 16, rarely starting after March 19, or ending before November 20.
Time Spent in Various Temperature Bands and 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 in Antirrio should appear around February 16, only rarely appearing before January 31 or after March 11.
Growing Degree Days
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 3.3 months, from May 10 to August 21, with an average daily incident shortwave energy per square meter above 6.8 kWh. The brightest day of the year is June 30, with an average of 8.0 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 3.2 kWh. The darkest day of the year is December 21, with an average of 2.0 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Antirrio are 38.330 deg latitude, 21.764 deg longitude, and 0 ft elevation.
The topography within 2 miles of Antirrio contains only modest variations in elevation, with a maximum elevation change of 341 feet and an average elevation above sea level of 21 feet. Within 10 miles contains only modest variations in elevation (6,096 feet). Within 50 miles also contains extreme variations in elevation (8,271 feet).
The area within 2 miles of Antirrio is covered by water (78%), within 10 miles by water (40%) and trees (20%), and within 50 miles by water (28%) and trees (27%).
This report illustrates the typical weather in Antirrio, 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 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Antirrio.
For each station, the records are corrected for the elevation difference between that station and Antirrio 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 Antirrio is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Antirrio and a given station.
The stations contributing to this reconstruction are: Araxos Airport (63%, 36 kilometers, southwest); Tripoli Airport (10%, 105 kilometers, southeast); Aktion Airport (12%, 109 kilometers, northwest); Nea Anchialos National Airport (9%, 133 kilometers, northeast); and Tanagra Airport (7%, 157 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.
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.