Climate and Average Weather Year Round in Kopanós Greece

In Kopanós, the summers are hot, dry, and mostly clear and the winters are very cold and partly cloudy. Over the course of the year, the temperature typically varies from 35°F to 91°F and is rarely below 25°F or above 98°F.

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

The hot season lasts for 3.2 months, from June 5 to September 12, with an average daily high temperature above 82°F. The hottest month of the year in Kopanós is July, with an average high of 90°F and low of 68°F.

The cool season lasts for 3.6 months, from November 22 to March 9, with an average daily high temperature below 56°F. The coldest month of the year in Kopanós is January, with an average low of 35°F and high of 48°F.

In Kopanós, 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 Kopanós begins around June 3 and lasts for 3.6 months, ending around September 21.

The clearest month of the year in Kopanós is July, during which on average the sky is clear, mostly clear, or partly cloudy 92% of the time.

The cloudier part of the year begins around September 21 and lasts for 8.4 months, ending around June 3.

The cloudiest month of the year in Kopanós is December, during which on average the sky is overcast or mostly cloudy 51% 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 in Kopanós varies throughout the year.

The wetter season lasts 8.0 months, from October 7 to June 8, with a greater than 18% chance of a given day being a wet day. The month with the most wet days in Kopanós is November, with an average of 6.6 days with at least 0.04 inches of precipitation.

The drier season lasts 4.0 months, from June 8 to October 7. The month with the fewest wet days in Kopanós is August, with an average of 3.7 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 in Kopanós is November, with an average of 6.6 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 25% on November 21.

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. Kopanós experiences some seasonal variation in monthly rainfall.

Rain falls throughout the year in Kopanós. The month with the most rain in Kopanós is November, with an average rainfall of 2.1 inches.

The month with the least rain in Kopanós is July, with an average rainfall of 0.8 inches.

The length of the day in Kopanós varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 16 minutes of daylight; the longest day is June 20, with 15 hours, 5 minutes of daylight.

The earliest sunrise is at 5:59 AM on June 14, and the latest sunrise is 1 hour, 55 minutes later at 7:55 AM on January 5. The earliest sunset is at 5:04 PM on December 7, and the latest sunset is 4 hours, 2 minutes later at 9:06 PM on June 27.

Daylight saving time (DST) is observed in Kopanós 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 in Kopanós, 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.

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

The windier part of the year lasts for 5.3 months, from November 16 to April 27, with average wind speeds of more than 5.6 miles per hour. The windiest month of the year in Kopanós is February, with an average hourly wind speed of 6.5 miles per hour.

The calmer time of year lasts for 6.7 months, from April 27 to November 16. The calmest month of the year in Kopanós is August, with an average hourly wind speed of 4.9 miles per hour.

The predominant average hourly wind direction in Kopanós varies throughout the year.

The wind is most often from the north for 2.1 months, from January 21 to March 25 and for 5.0 months, from May 2 to October 3, with a peak percentage of 47% on July 8. The wind is most often from the west for 1.3 months, from March 25 to May 2 and for 2.3 months, from November 11 to January 21, with a peak percentage of 31% on April 4. The wind is most often from the east for 1.3 months, from October 3 to November 11, with a peak percentage of 31% on October 16.

Kopanós 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 3.1 months, from June 20 to September 23, with an average temperature above 74°F. The month of the year in Kopanós with the warmest water is August, with an average temperature of 79°F.

The time of year with cooler water lasts for 4.3 months, from December 11 to April 20, with an average temperature below 59°F. The month of the year in Kopanós with the coolest water is February, with an average temperature of 54°F.

To characterize how pleasant the weather is in Kopanós 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 Kopanós for general outdoor tourist activities are from mid May to late June and from mid August to early October, with a peak score in the second week of September.

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 Kopanós for hot-weather activities is from mid June to early September, with a peak score in the third week of July.

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 in Kopanós typically lasts for 8.9 months (273 days), from around March 2 to around November 30, rarely starting before February 3 or after March 26, and rarely ending before November 5 or after December 23.

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 Kopanós should appear around March 16, only rarely appearing before February 27 or after April 4.

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 3.0 months, from May 18 to August 19, with an average daily incident shortwave energy per square meter above 6.6 kWh. The brightest month of the year in Kopanós is July, with an average of 7.6 kWh.

The darker period of the year lasts for 3.6 months, from October 28 to February 17, with an average daily incident shortwave energy per square meter below 3.0 kWh. The darkest month of the year in Kopanós is December, with an average of 1.8 kWh.

For the purposes of this report, the geographical coordinates of Kopanós are 40.634 deg latitude, 22.129 deg longitude, and 285 ft elevation.

The topography within 2 miles of Kopanós contains significant variations in elevation, with a maximum elevation change of 584 feet and an average elevation above sea level of 303 feet. Within 10 miles contains significant variations in elevation (6,709 feet). Within 50 miles also contains extreme variations in elevation (9,610 feet).

The area within 2 miles of Kopanós is covered by cropland (60%), trees (18%), and grassland (11%), within 10 miles by cropland (44%) and trees (37%), and within 50 miles by cropland (35%) and trees (31%).