Normal weather for St. Petersburg in September
It's hot in September in St. Petersburg with an average temperature of 32°C. Temperatures this month range from a low of 30°C to a high of 33°C. At night, you can expect temperatures between 25°C and 27°C.
In September, there is an average of 271 mm of precipitation, spread over 22 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
St. Petersburg in September |
London | ||
|---|---|---|---|
 Average Temperature |
32°C | 20°C | |
 High Temp |
33°C | 22°C | |
| Low Temp |
30°C | 17°C | |
 Total Precipitation |
271 mm | 44 mm | |
| Rainy Days |
22 days | 8 days | |
Start of September
The month of September starts in St. Petersburg with hot temperatures, averaging around 32°C during the day and nights close to 27°C. Plenty of days with a chance of precipitation. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Mid-September
By mid-September, the average daytime temperature stays the same at 32°C, with nights close to 27°C. The chance of precipitation is high during this period. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
End of September
By the end of September, the average daytime temperature in St. Petersburg will be around 32°C, with nights close to 26°C. There’s a significant chance of many days with precipitation. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
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Water temperature
The water temperature at St. Petersburg is 31°C this month. It’s really warm, perfect for a swim.
UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is September a good time to visit St. Petersburg?
After some sun? Then September isn’t the best time to be in St. Petersburg. The temperature is pleasant, but there’s too much chance of rain this month.
The hurricane season in St. Petersburg runs from June to November.
Temperature records for St. Petersburg in September
With 36°C, St. Petersburg hit the highest temperature in the last 10 years in September 2019. The lowest daytime temperature in this month was 23°C in 2022. The extreme night temperatures ranged from a low of 18°C to a high of 30°C.
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Daily Temperature in September in St. Petersburg
This chart shows the average daily temperatures, both day and night, for each day in September in St. Petersburg, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in September in St. Petersburg
The chart below shows the average daily precipitation in September for St. Petersburg, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 22 days of rain in St. Petersburg.
Daily UV Index in September in St. Petersburg
This chart shows the average daily UV index in September in St. Petersburg, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in St. Petersburg Over the Years
This chart shows the average temperature in September in St. Petersburg, measured in degrees Celsius, over the past years.
Total Precipitation in September in St. Petersburg Over the Years
This chart shows the average precipitation in September in St. Petersburg, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for St. Petersburg
Click on a specific day in September for detailed info on the typical weather on that day in St. Petersburg. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in St. Petersburg
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Average Weather in St. Petersburg by Month
Click on a month below to see detailed weather info for St. Petersburg. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of St. Petersburg for all months at once
