Average Weather in September in Mantignano-Ugnano Italy
Daily high temperatures decrease by 9°F, from 84°F to 75°F, rarely falling below 67°F or exceeding 92°F.
Daily low temperatures decrease by 6°F, from 63°F to 57°F, rarely falling below 50°F or exceeding 69°F.
For reference, on August 4, the hottest day of the year, temperatures in Mantignano-Ugnano typically range from 67°F to 90°F, while on January 11, the coldest day of the year, they range from 36°F to 51°F.
Average High and Low Temperature in September
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on September. The horizontal axis is the day, 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 September
The month of September in Mantignano-Ugnano experiences rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 30% to 44%.
The clearest day of the month is September 1, with clear, mostly clear, or partly cloudy conditions 70% of the time.
For reference, on November 26, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 59%, while on July 21, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 83%.
Cloud Cover Categories in September
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Mantignano-Ugnano, the chance of a wet day over the course of September is increasing, starting the month at 20% and ending it at 26%.
For reference, the year's highest daily chance of a wet day is 32% on November 4, and its lowest chance is 13% on July 15.
Probability of Precipitation in September
The average sliding 31-day rainfall during September in Mantignano-Ugnano is increasing, starting the month at 1.9 inches, when it rarely exceeds 3.4 inches or falls below 0.7 inches, and ending the month at 2.8 inches, when it rarely exceeds 5.1 inches or falls below 0.8 inches.
Average Monthly Rainfall in September
Over the course of September in Mantignano-Ugnano, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 26 minutes, implying an average daily decrease of 2 minutes, 57 seconds, and weekly decrease of 20 minutes, 42 seconds.
The shortest day of the month is September 30, with 11 hours, 47 minutes of daylight and the longest day is September 1, with 13 hours, 13 minutes of daylight.
Hours of Daylight and Twilight in September
The earliest sunrise of the month in Mantignano-Ugnano is 6:38 AM on September 1 and the latest sunrise is 33 minutes later at 7:11 AM on September 30.
The latest sunset is 7:51 PM on September 1 and the earliest sunset is 53 minutes earlier at 6:58 PM on September 30.
Daylight saving time is observed in Mantignano-Ugnano during 2018, but it neither starts nor ends during September, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:33 AM and sets 15 hours, 28 minutes later, at 9:00 PM, while on December 21, the shortest day of the year, it rises at 7:45 AM and sets 8 hours, 55 minutes later, at 4:40 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in September
The chance that a given day will be muggy in Mantignano-Ugnano is rapidly decreasing during September, falling from 19% to 5% over the course of the month.
For reference, on August 7, the muggiest day of the year, there are muggy conditions 34% of the time, while on November 14, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in September
The average hourly wind speed in Mantignano-Ugnano is essentially constant during September, remaining within 0.2 miles per hour of 6.0 miles per hour throughout.
For reference, on February 24, the windiest day of the year, the daily average wind speed is 7.5 miles per hour, while on August 10, the calmest day of the year, the daily average wind speed is 5.4 miles per hour.
Average Wind Speed in September
Wind Direction in September
Mantignano-Ugnano 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 surface water temperature in Mantignano-Ugnano is decreasing during September, falling by 4°F, from 75°F to 71°F, over the course of the month.
Average Water Temperature in September
The growing season in Mantignano-Ugnano typically lasts for 8.4 months (259 days), from around March 10 to around November 24, rarely starting before February 12 or after April 2, and rarely ending before November 5 or after December 15.
The month of September in Mantignano-Ugnano is reliably fully within the growing season.
Time Spent in Various Temperature Bands and the Growing Season in September
The average accumulated growing degree days in Mantignano-Ugnano are rapidly increasing during September, increasing by 566°F, from 3,121°F to 3,687°F, over the course of the month.
Growing Degree Days in September
The average daily incident shortwave solar energy in Mantignano-Ugnano is rapidly decreasing during September, falling by 1.6 kWh, from 5.6 kWh to 4.0 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in September
For the purposes of this report, the geographical coordinates of Mantignano-Ugnano are 43.782 deg latitude, 11.170 deg longitude, and 125 ft elevation.
The topography within 2 miles of Mantignano-Ugnano is essentially flat, with a maximum elevation change of 82 feet and an average elevation above sea level of 122 feet. Within 10 miles is essentially flat (3,041 feet). Within 50 miles contains large variations in elevation (7,129 feet).
The area within 2 miles of Mantignano-Ugnano is covered by artificial surfaces (59%) and cropland (37%), within 10 miles by cropland (54%) and trees (26%), and within 50 miles by trees (51%) and cropland (39%).
This report illustrates the typical weather in Mantignano-Ugnano year round, 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Mantignano-Ugnano.
For each station, the records are corrected for the elevation difference between that station and Mantignano-Ugnano 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 Mantignano-Ugnano is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Mantignano-Ugnano and a given station.
The stations contributing to this reconstruction are: Florence Peretola Airport (98%, 4.2 kilometers, northeast); Pisa International Airport (1.7%, 63 kilometers, west); and Grosseto Airport (0.7%, 114 kilometers, south).
Time zones for aiports and weather stations are provided by AskGeo.com .