This report describes the typical weather at the Adler-Sochi International Airport (Sochi, Russian Federation) weather station over the course of an average year. It is based on the historical records from 1997 to 2012. Earlier records are either unavailable or unreliable.
Sochi has a warm humid temperate climate with hot summers and no dry season. The area within 25 mi of this station is covered by oceans and seas (57%), forests (17%), croplands (15%), and grasslands (11%).
Over the course of a year, the temperature typically varies from 36°F to 84°F and is rarely below 29°F or above 89°F.
The warm season lasts from June 16 to September 14 with an average daily high temperature above 77°F. The hottest day of the year is August 5, with an average high of 84°F and low of 70°F.
The cold season lasts from December 3 to March 29 with an average daily high temperature below 56°F. The coldest day of the year is February 14, with an average low of 36°F and high of 49°F.
The length of the day varies significantly over the course of the year. The shortest day is December 21 with 8:57 hours of daylight; the longest day is June 20 with 15:25 hours of daylight.
The earliest sunrise is at 5:39am on June 17 and the latest sunset is at 9:06pm on June 25. The latest sunrise is at 8:54am on January 1 and the earliest sunset is at 5:44pm on December 11.
Daylight savings time (DST) is not observed in 2012.
The median cloud cover ranges from 49% (partly cloudy) to 97% (overcast). The sky is cloudiest on February 23 and clearest on August 1. The clearer part of the year begins around June 8. The cloudier part of the year begins around September 30.
On August 1, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 60% of the time, and overcast or mostly cloudy 37% of the time.
On February 23, the cloudiest day of the year, the sky is overcast, mostly cloudy, or partly cloudy 82% of the time, and clear or mostly clear 15% of the time.
The probability that precipitation will be observed at this location varies throughout the year. Precipitation is most likely around February 23, occurring in 59% of days. Precipitation is least likely around August 2, occurring in 33% of days.
Over the entire year, the most common forms of precipitation are light rain, thunderstorms, and moderate rain.
Light rain is the most severe precipitation observed during 41% of those days with precipitation. It is most likely around March 22, when it is observed during 31% of all days.
Thunderstorms are the most severe precipitation observed during 32% of those days with precipitation. They are most likely around September 2, when it is observed during 30% of all days.
Moderate rain is the most severe precipitation observed during 18% of those days with precipitation. It is most likely around February 23, when it is observed during 15% of all days.
During the warm season, which lasts from June 16 to September 14, there is a 36% average chance that precipitation will be observed at some point during a given day. When precipitation does occur it is most often in the form of thunderstorms (77% of days with precipitation have at worst thunderstorms), light rain (17%), and moderate rain (5%).
During the cold season, which lasts from December 3 to March 29, there is a 55% average chance that precipitation will be observed at some point during a given day. When precipitation does occur it is most often in the form of light rain (51% of days with precipitation have at worst light rain), moderate rain (24%), moderate snow (8%), and thunderstorms (8%).
The likelihood of snow falling is highest around January 23, occurring in 12% of days. The season in which it is relatively likely for snow to fall spans from December 5 to March 28.
During peak snow season, accumulation at this location on a given day is very unlikely. The chances of there being snow on the ground are highest around January 29, occurring 8% of the time.
The snow is typically at its deepest on January 14, with a median depth of 2.4"; the depth exceeds 2.5" only one year out of ten.
The relative humidity typically ranges from 54% (mildly humid) to 97% (very humid) over the course of the year, rarely dropping below 31% (comfortable) and reaching as high as 100% (very humid).
The air is driest around January 30, at which time the relative humidity drops below 65% (mildly humid) three days out of four; it is most humid around May 5, exceeding 96% (very humid) three days out of four.
Dew point is often a better measure of how comfortable a person will find the weather than relative humidity because it more directly relates to whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid.
Over the course of a year, the dew point typically varies from 29°F (dry) to 73°F (very muggy) and is rarely below 21°F (dry) or above 77°F (oppressive).
There are two periods in the year that are most comfortable: The first is between April 18 and June 11 and the second is between September 12 and November 13. The air feels neither too dry nor too muggy during these periods.
Over the course of the year typical wind speeds vary from 0 mph to 12 mph (calm to moderate breeze), rarely exceeding 17 mph (moderate breeze).
The highest average wind speed of 7 mph (light breeze) occurs around January 30, at which time the average daily maximum wind speed is 12 mph (gentle breeze).
The lowest average wind speed of 4 mph (light breeze) occurs around May 5, at which time the average daily maximum wind speed is 10 mph (gentle breeze).