Climate and Average Weather Year Round in Trebisacce Italy

In Trebisacce, the summers are short, warm, humid, dry, and mostly clear and the winters are long, cold, wet, windy, and partly cloudy. Over the course of the year, the temperature typically varies from 45°F to 87°F and is rarely below 38°F or above 92°F.

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

The hot season lasts for 2.9 months, from June 16 to September 11, with an average daily high temperature above 81°F. The hottest month of the year in Trebisacce is August, with an average high of 86°F and low of 73°F.

The cool season lasts for 4.1 months, from November 22 to March 26, with an average daily high temperature below 61°F. The coldest month of the year in Trebisacce is February, with an average low of 45°F and high of 56°F.

In Trebisacce, 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 Trebisacce begins around June 9 and lasts for 3.0 months, ending around September 9.

The clearest month of the year in Trebisacce is July, during which on average the sky is clear, mostly clear, or partly cloudy 93% of the time.

The cloudier part of the year begins around September 9 and lasts for 9.0 months, ending around June 9.

The cloudiest month of the year in Trebisacce 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 Trebisacce varies throughout the year.

The wetter season lasts 7.3 months, from September 20 to April 30, with a greater than 21% chance of a given day being a wet day. The month with the most wet days in Trebisacce is November, with an average of 9.8 days with at least 0.04 inches of precipitation.

The drier season lasts 4.7 months, from April 30 to September 20. The month with the fewest wet days in Trebisacce is July, with an average of 2.4 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 Trebisacce is November, 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 36% on November 20.

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. Trebisacce experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year in Trebisacce. The month with the most rain in Trebisacce is November, with an average rainfall of 3.1 inches.

The month with the least rain in Trebisacce is July, with an average rainfall of 0.5 inches.

The length of the day in Trebisacce varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 20 minutes of daylight; the longest day is June 20, with 15 hours, 0 minutes of daylight.

The earliest sunrise is at 5:24 AM on June 14, and the latest sunrise is 1 hour, 52 minutes later at 7:16 AM on October 26. The earliest sunset is at 4:28 PM on December 6, and the latest sunset is 3 hours, 58 minutes later at 8:26 PM on June 27.

Daylight saving time (DST) is observed in Trebisacce 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.

Trebisacce experiences significant seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.6 months, from June 8 to September 25, during which time the comfort level is muggy, oppressive, or miserable at least 12% of the time. The month with the most muggy days in Trebisacce is August, with 13.9 days that are muggy or worse.

The least muggy day of the year is February 25, 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 Trebisacce experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 5.7 months, from October 25 to April 17, with average wind speeds of more than 8.1 miles per hour. The windiest month of the year in Trebisacce is February, with an average hourly wind speed of 10.1 miles per hour.

The calmer time of year lasts for 6.3 months, from April 17 to October 25. The calmest month of the year in Trebisacce is August, with an average hourly wind speed of 6.2 miles per hour.

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

The wind is most often from the west for 5.0 days, from February 17 to February 22; for 4.1 months, from March 2 to July 4; for 3.9 weeks, from September 12 to October 9; and for 2.9 weeks, from November 18 to December 8, with a peak percentage of 44% on May 31. The wind is most often from the north for 1.3 weeks, from February 22 to March 2; for 2.3 months, from July 4 to September 12; for 1.3 months, from October 9 to November 18; and for 2.3 months, from December 8 to February 17, with a peak percentage of 43% on July 20.

Trebisacce 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 2.9 months, from June 29 to September 27, with an average temperature above 75°F. The month of the year in Trebisacce with the warmest water is August, with an average temperature of 79°F.

The time of year with cooler water lasts for 4.5 months, from December 11 to April 28, with an average temperature below 61°F. The month of the year in Trebisacce with the coolest water is February, with an average temperature of 57°F.

To characterize how pleasant the weather is in Trebisacce 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 Trebisacce for general outdoor tourist activities are from early May to early July and from early September to mid October, with a peak score in the first 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 Trebisacce for hot-weather activities is from mid June to early September, with a peak score in the first 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).

Temperatures in Trebisacce are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.

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.

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 3.2 months, from May 9 to August 16, with an average daily incident shortwave energy per square meter above 6.6 kWh. The brightest month of the year in Trebisacce is July, with an average of 7.6 kWh.

The darker period of the year lasts for 3.5 months, from October 28 to February 15, with an average daily incident shortwave energy per square meter below 3.1 kWh. The darkest month of the year in Trebisacce is December, with an average of 2.0 kWh.

For the purposes of this report, the geographical coordinates of Trebisacce are 39.871 deg latitude, 16.534 deg longitude, and 66 ft elevation.

The topography within 2 miles of Trebisacce contains large variations in elevation, with a maximum elevation change of 2,106 feet and an average elevation above sea level of 299 feet. Within 10 miles contains large variations in elevation (5,561 feet). Within 50 miles also contains extreme variations in elevation (7,405 feet).

The area within 2 miles of Trebisacce is covered by cropland (48%) and water (37%), within 10 miles by water (45%) and cropland (30%), and within 50 miles by water (40%) and cropland (27%).