Climate and Average Weather Year Round in Gargaliánoi Greece

In Gargaliánoi, the summers are warm, humid, dry, and clear and the winters are long, cold, wet, windy, and partly cloudy. Over the course of the year, the temperature typically varies from 41°F to 82°F and is rarely below 34°F or above 87°F.

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

The warm season lasts for 3.1 months, from June 14 to September 18, with an average daily high temperature above 77°F. The hottest month of the year in Gargaliánoi is August, with an average high of 82°F and low of 65°F.

The cool season lasts for 4.0 months, from November 30 to March 30, with an average daily high temperature below 61°F. The coldest month of the year in Gargaliánoi is January, with an average low of 42°F and high of 56°F.

In Gargaliánoi, 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 Gargaliánoi begins around May 28 and lasts for 3.8 months, ending around September 22.

The clearest month of the year in Gargaliánoi is July, during which on average the sky is clear, mostly clear, or partly cloudy 98% of the time.

The cloudier part of the year begins around September 22 and lasts for 8.2 months, ending around May 28.

The cloudiest month of the year in Gargaliánoi is December, during which on average the sky is overcast or mostly cloudy 45% 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 Gargaliánoi varies significantly throughout the year.

The wetter season lasts 5.6 months, from October 7 to March 25, with a greater than 19% chance of a given day being a wet day. The month with the most wet days in Gargaliánoi is December, with an average of 10.8 days with at least 0.04 inches of precipitation.

The drier season lasts 6.4 months, from March 25 to October 7. The month with the fewest wet days in Gargaliánoi is July, with an average of 0.9 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 Gargaliánoi is December, with an average of 10.8 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 37% on December 2.

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. Gargaliánoi experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 9.0 months, from August 23 to May 24, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Gargaliánoi is November, with an average rainfall of 3.9 inches.

The rainless period of the year lasts for 3.0 months, from May 24 to August 23. The month with the least rain in Gargaliánoi is July, with an average rainfall of 0.2 inches.

The length of the day in Gargaliánoi varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 37 minutes of daylight; the longest day is June 20, with 14 hours, 43 minutes of daylight.

The earliest sunrise is at 6:13 AM on June 13, and the latest sunrise is 1 hour, 39 minutes later at 7:51 AM on October 26. The earliest sunset is at 5:16 PM on December 6, and the latest sunset is 3 hours, 41 minutes later at 8:57 PM on June 28.

Daylight saving time (DST) is observed in Gargaliánoi 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.

Gargaliánoi experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.9 months, from June 10 to October 5, during which time the comfort level is muggy, oppressive, or miserable at least 16% of the time. The month with the most muggy days in Gargaliánoi is August, with 18.5 days that are muggy or worse.

The least muggy day of the year is February 22, when muggy conditions are essentially unheard of.

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 Gargaliánoi experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 5.0 months, from November 9 to April 9, with average wind speeds of more than 10.0 miles per hour. The windiest month of the year in Gargaliánoi is February, with an average hourly wind speed of 11.4 miles per hour.

The calmer time of year lasts for 7.0 months, from April 9 to November 9. The calmest month of the year in Gargaliánoi is September, with an average hourly wind speed of 8.6 miles per hour.

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

The wind is most often from the north for 1.4 months, from July 1 to August 12, with a peak percentage of 47% on July 18. The wind is most often from the west for 2.4 months, from August 12 to October 25 and for 7.6 months, from November 13 to July 1, with a peak percentage of 45% on August 18. The wind is most often from the east for 2.7 weeks, from October 25 to November 13, with a peak percentage of 29% on October 29.

Gargaliánoi 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 3.0 months, from July 3 to October 4, with an average temperature above 75°F. The month of the year in Gargaliánoi with the warmest water is August, with an average temperature of 79°F.

The time of year with cooler water lasts for 4.2 months, from December 23 to April 30, with an average temperature below 63°F. The month of the year in Gargaliánoi with the coolest water is March, with an average temperature of 60°F.

To characterize how pleasant the weather is in Gargaliánoi 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 Gargaliánoi for general outdoor tourist activities is from late May to late September, with a peak score in the last week of June.

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 Gargaliánoi for hot-weather activities is from late June to early September, with a peak score in the last 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 Gargaliánoi typically lasts for 11 months (331 days), from around February 9 to around January 4, rarely starting after March 16, or ending before December 15.

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 Gargaliánoi should appear around February 16, only rarely appearing before February 1 or after March 10.

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 3.4 months, from May 6 to August 18, with an average daily incident shortwave energy per square meter above 6.9 kWh. The brightest month of the year in Gargaliánoi is July, with an average of 7.9 kWh.

The darker period of the year lasts for 3.5 months, from October 30 to February 14, with an average daily incident shortwave energy per square meter below 3.3 kWh. The darkest month of the year in Gargaliánoi is December, with an average of 2.2 kWh.

For the purposes of this report, the geographical coordinates of Gargaliánoi are 37.065 deg latitude, 21.638 deg longitude, and 915 ft elevation.

The topography within 2 miles of Gargaliánoi contains very significant variations in elevation, with a maximum elevation change of 1,020 feet and an average elevation above sea level of 753 feet. Within 10 miles contains very significant variations in elevation (4,012 feet). Within 50 miles also contains extreme variations in elevation (7,841 feet).

The area within 2 miles of Gargaliánoi is covered by cropland (38%), trees (20%), shrubs (17%), and grassland (17%), within 10 miles by water (45%) and cropland (20%), and within 50 miles by water (68%) and trees (11%).