The area within 3 kilometres of Saint Petersburg is covered by artificial surfaces (95%), within 16 kilometres by artificial surfaces (46%) and water (22%), and within 80 kilometres by trees (63%) and water (22%). Weather averages in St Petersburg are generally lower than for Russia's capital, Moscow. After the excesses of the summer months, the season sees the city getting back to work and preparing for the long winter ahead. We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Winter sets in from late November to late March and is characterized by long, cold, icy nights, snowfall, and chilly winds. 75 ° 62 ° 1. 62 ° 49 ° 2. Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations. The month of September in Saint Petersburg experiences increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 52% to 61%. The latest sunset is 8:01 p.m. on September 1 and the earliest sunset is 1 hour, 28 minutes earlier at 6:33 p.m. on September 30. Weather forecast St Petersburg in september. September is in the fall / autumn in Saint Petersburg and is typically the 3rd warmest month of the year. For reference, the year's highest daily chance of a wet day is 34% on August 21, and its lowest chance is 16% on March 2. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands. The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than. The average hourly wind speed in Saint Petersburg is gradually increasing during September, increasing from 9.6 kilometres per hour to 10.7 kilometres per hour over the course of the month. Time zones for airports and weather stations are provided by AskGeo.com . Get AccuWeather alerts as they happen with our browser notifications. St Petersburg Weather for September 2020. The month of September in Saint Petersburg is more likely than not fully within the growing season, with the chance that a given day is in the growing season rapidly decreasing from 98% to 58% over the course of the month. Saint Petersburg is located near a large body of water (e.g., ocean, sea, or large lake). 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. Usually first week is the hottest in September., but it should be borne in mind the possibility of Rain, Fog and Thunderstorm. The weather in Saint Petersburg in september comes from statistical datas on the past years. The thin dotted line is the corresponding average liquid-equivalent snowfall. For reference, on January 1, the windiest day of the year, the daily average wind speed is 12.5 kilometres per hour, while on July 21, the calmest day of the year, the daily average wind speed is 8.5 kilometres per hour. Usually, from September to October the weather in St Petersburg is still warm and dry, with average temperatures over +11 °C/52°F. Get the monthly weather forecast for Saint Petersburg, Saint Petersburg, Russia, including daily high/low, historical averages, to help you plan ahead. 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 St. Petersburg, there are 6 comfortable months with high temperatures in the range of 70-85°. Tonight, A clear sky and light winds. For reference, on June 20, the longest day of the year, the Sun rises at 3:35 a.m. and sets 18 hours, 51 minutes later, at 10:25 p.m., while on December 21, the shortest day of the year, it rises at 10:00 a.m. and sets 5 hours, 53 minutes later, at 3:53 p.m.. From 05/09/2021 to 11/09/2021 33% … At the start of the month, the average temperature will be between 17C and 9C. The average surface water temperature in Saint Petersburg is rapidly decreasing during September, falling by 8°F, from 60°F to 52°F, over the course of the month. Day by day forecast. September can be anything but normally it is mild and drier than the early summer. Saint Petersburg, Russia, has a humid continental climate classified as Dfb under the Köppen climate classification characterized by short warm, humid summers and long, cold, wet winters. Weather in September could be different, really. When you travel to Saint Petersburg in September you can expect: usually rain, often fog, rarely thunderstorm and expect cool weather. Weather in Saint Petersburg in september 2020. The average surface water temperature in Saint Petersburg is rapidly decreasing during September, falling by 5 °C, from 16 °C to 11 °C, over the course of the month. The black line is the percentage chance that a given day is within the growing season. 79 ° 70 ° 30. St. Petersburg, FL Monthly Weather. September through May prices are lower and tourist sites less crowded conditions for the winter. Suitability for any purpose 18 °C to 5 °C, from 9 °C to °C... 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