Average Weather in Geyve Turkey
In Geyve, the summers are warm, dry, and clear and the winters are very cold and partly cloudy. Over the course of the year, the temperature typically varies from 33°F to 87°F and is rarely below 24°F or above 94°F.
Based on the beach/pool score, the best time of year to visit Geyve for hot-weather activities is from early July to late August.
The hot season lasts for 3.4 months, from June 6 to September 19, with an average daily high temperature above 79°F. The hottest day of the year is August 2, with an average high of 87°F and low of 63°F.
The cool season lasts for 3.5 months, from November 29 to March 14, with an average daily high temperature below 56°F. The coldest day of the year is January 24, with an average low of 33°F and high of 48°F.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, 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 Geyve, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year.
The clearer part of the year in Geyve begins around May 30 and lasts for 4.0 months, ending around September 30. On July 27, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 96% of the time, and overcast or mostly cloudy 4% of the time.
The cloudier part of the year begins around September 30 and lasts for 8.0 months, ending around May 30. On December 25, the cloudiest day of the year, the sky is overcast or mostly cloudy 64% of the time, and clear, mostly clear, or partly cloudy 36% of the time.
Cloud Cover Categories
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. The chance of wet days in Geyve varies throughout the year.
The wetter season lasts 8.4 months, from October 3 to June 15, with a greater than 18% chance of a given day being a wet day. The chance of a wet day peaks at 28% on December 22.
The drier season lasts 3.6 months, from June 15 to October 3. The smallest chance of a wet day is 9% on August 2.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 26% on December 1.
Daily Chance of Precipitation
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. Geyve experiences some seasonal variation in monthly rainfall.
Rain falls throughout the year in Geyve. The most rain falls during the 31 days centered around December 12, with an average total accumulation of 2.3 inches.
The least rain falls around August 5, with an average total accumulation of 0.7 inches.
Average Monthly Rainfall
The sliding 31-day liquid-equivalent quantity of snowfall in Geyve does not vary significantly over the course of the year, staying within 0.1 inches of 0.1 inches throughout.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Geyve varies significantly over the course of the year. In 2021, the shortest day is December 21, with 9 hours, 17 minutes of daylight; the longest day is June 21, with 15 hours, 4 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:27 AM on June 14, and the latest sunrise is 2 hours, 55 minutes later at 8:22 AM on January 4. The earliest sunset is at 5:31 PM on December 8, and the latest sunset is 3 hours, 2 minutes later at 8:33 PM on June 27.
Daylight saving time (DST) is not observed in Geyve during 2021.
Sunrise & Sunset with Twilight
The figure below presents a compact representation of key lunar data for 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.
Moon Rise, Set & Phases
Geyve experiences some seasonal variation in the perceived humidity.
The muggier period of the year lasts for 2.8 months, from June 17 to September 10, during which time the comfort level is muggy, oppressive, or miserable at least 7% of the time. The muggiest day of the year is August 4, with muggy conditions 29% of the time.
The least muggy day of the year is February 23, when muggy conditions are essentially unheard of.
Humidity Comfort Levels
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Geyve experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 3.8 months, from December 10 to April 3, with average wind speeds of more than 6.1 miles per hour. The windiest day of the year is February 13, with an average hourly wind speed of 6.8 miles per hour.
The calmer time of year lasts for 8.2 months, from April 3 to December 10. The calmest day of the year is May 31, with an average hourly wind speed of 5.3 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Geyve varies throughout the year.
The wind is most often from the north for 8.6 months, from February 21 to November 8, with a peak percentage of 78% on July 26. The wind is most often from the south for 3.5 months, from November 8 to February 21, with a peak percentage of 49% on January 1.
Geyve 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 3.4 months, from June 19 to September 30, with an average temperature above 70°F. The day of the year with the warmest water is August 13, with an average temperature of 76°F.
The time of year with cooler water lasts for 4.0 months, from December 21 to April 19, with an average temperature below 51°F. The day of the year with the coolest water is February 20, with an average temperature of 45°F.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is in Geyve 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 Geyve for general outdoor tourist activities is from late May to late September, with a peak score in the first 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 Geyve for hot-weather activities is from early July to late August, with a peak score in the last week of July.
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.
The growing season in Geyve typically lasts for 7.8 months (237 days), from around March 30 to around November 22, rarely starting before March 8 or after April 18, and rarely ending before October 28 or after December 20.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Geyve should appear around March 10, only rarely appearing before February 17 or after April 5.
Growing Degree Days
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 21 to August 23, with an average daily incident shortwave energy per square meter above 6.6 kWh. The brightest day of the year is July 6, with an average of 7.8 kWh.
The darker period of the year lasts for 3.6 months, from October 29 to February 16, with an average daily incident shortwave energy per square meter below 2.9 kWh. The darkest day of the year is December 23, with an average of 1.7 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Geyve are 40.507 deg latitude, 30.292 deg longitude, and 276 ft elevation.
The topography within 2 miles of Geyve contains significant variations in elevation, with a maximum elevation change of 791 feet and an average elevation above sea level of 360 feet. Within 10 miles contains significant variations in elevation (4,852 feet). Within 50 miles also contains extreme variations in elevation (6,033 feet).
The area within 2 miles of Geyve is covered by cropland (80%) and artificial surfaces (18%), within 10 miles by trees (60%) and cropland (38%), and within 50 miles by trees (53%) and cropland (35%).
This report illustrates the typical weather in Geyve, 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 Geyve.
For each station, the records are corrected for the elevation difference between that station and Geyve 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 Geyve is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Geyve and a given station.
The stations contributing to this reconstruction are: Cengiz Topel Naval Air Station (72%, 31 kilometers, northwest); Eskişehir Anadolu Airport (11%, 80 kilometers, south); Bursa (11%, 110 kilometers, west); and Caycuma (6%, 164 kilometers, northeast).
Time zones for airports and weather stations are provided by AskGeo.com .