Average Weather in September in Gölyaka Turkey
Daily high temperatures decrease by 6°F, from 81°F to 74°F, rarely falling below 65°F or exceeding 88°F.
Daily low temperatures decrease by 6°F, from 61°F to 55°F, rarely falling below 47°F or exceeding 66°F.
For reference, on August 2, the hottest day of the year, temperatures in Gölyaka typically range from 65°F to 84°F, while on January 25, the coldest day of the year, they range from 34°F to 47°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 Gölyaka experiences very rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 11% to 32%.
The clearest day of the month is September 1, with clear, mostly clear, or partly cloudy conditions 89% of the time.
For reference, on December 25, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 62%, while on July 27, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 97%.
Cloud Cover Categories in September
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Gölyaka, the chance of a wet day over the course of September is increasing, starting the month at 14% and ending it at 19%.
For reference, the year's highest daily chance of a wet day is 29% on December 22, and its lowest chance is 10% on August 2.
Probability of Precipitation in September
The average sliding 31-day rainfall during September in Gölyaka is increasing, starting the month at 1.1 inches, when it rarely exceeds 2.4 inches or falls below 0.1 inches, and ending the month at 1.6 inches, when it rarely exceeds 3.2 inches or falls below 0.4 inches.
Average Monthly Rainfall in September
Over the course of September in Gölyaka, 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, 17 minutes, implying an average daily decrease of 2 minutes, 40 seconds, and weekly decrease of 18 minutes, 37 seconds.
The shortest day of the month is September 30, with 11 hours, 48 minutes of daylight and the longest day is September 1, with 13 hours, 5 minutes of daylight.
Hours of Daylight and Twilight in September
The earliest sunrise of the month in Gölyaka is 6:22 AM on September 1 and the latest sunrise is 29 minutes later at 6:51 AM on September 30.
The latest sunset is 7:28 PM on September 1 and the earliest sunset is 49 minutes earlier at 6:39 PM on September 30.
Daylight saving time is not observed in Gölyaka during 2021.
For reference, on June 21, the longest day of the year, the Sun rises at 5:24 AM and sets 15 hours, 6 minutes later, at 8:30 PM, while on December 21, the shortest day of the year, it rises at 8:16 AM and sets 9 hours, 15 minutes later, at 5:31 PM.
Sunrise & Sunset with Twilight in September
The figure below presents a compact representation of key lunar data for September 2021. 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. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.
Moon Rise, Set & Phases in September
The chance that a given day will be muggy in Gölyaka is decreasing during September, falling from 10% to 0% over the course of the month.
For reference, on August 3, the muggiest day of the year, there are muggy conditions 24% of the time, while on October 30, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in September
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Gölyaka is essentially constant during September, remaining within 0.3 miles per hour of 5.2 miles per hour throughout.
For reference, on February 6, the windiest day of the year, the daily average wind speed is 6.5 miles per hour, while on May 10, the calmest day of the year, the daily average wind speed is 4.7 miles per hour.
The lowest daily average wind speed during September is 5.0 miles per hour on September 27.
Average Wind Speed in September
The hourly average wind direction in Gölyaka throughout September is predominantly from the north, with a peak proportion of 62% on September 1.
Wind Direction in September
Gölyaka 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 Gölyaka is decreasing during September, falling by 5°F, from 75°F to 70°F, over the course of the month.
Average Water Temperature in September
The growing season in Gölyaka typically lasts for 8.4 months (255 days), from around March 21 to around December 2, rarely starting before February 27 or after April 13, and rarely ending before November 7 or after December 27.
The month of September in Gölyaka 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 Gölyaka are rapidly increasing during September, increasing by 500°F, from 2,745°F to 3,245°F, over the course of the month.
Growing Degree Days in September
The average daily incident shortwave solar energy in Gölyaka is rapidly decreasing during September, falling by 1.7 kWh, from 6.2 kWh to 4.5 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 Gölyaka are 40.777 deg latitude, 30.996 deg longitude, and 433 ft elevation.
The topography within 2 miles of Gölyaka contains very significant variations in elevation, with a maximum elevation change of 1,900 feet and an average elevation above sea level of 577 feet. Within 10 miles contains very significant variations in elevation (5,663 feet). Within 50 miles also contains extreme variations in elevation (7,848 feet).
The area within 2 miles of Gölyaka is covered by cropland (78%) and trees (16%), within 10 miles by trees (53%) and cropland (43%), and within 50 miles by trees (50%) and cropland (26%).
This report illustrates the typical weather in Gölyaka, 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 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Gölyaka.
For each station, the records are corrected for the elevation difference between that station and Gölyaka 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 Gölyaka is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Gölyaka and a given station.
The stations contributing to this reconstruction are: Cengiz Topel Naval Air Station (42%, 77 kilometers, west); Caycuma (29%, 101 kilometers, northeast); Eskişehir Anadolu Airport (19%, 115 kilometers, south); and Ankara Esenboğa International Airport (10%, 184 kilometers, east).
Time zones for airports and weather stations are provided by AskGeo.com .