The best times to visit St Petersburg for ideal weather are

May 21st to September 16th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.


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Weather in St Petersburg

Temperature

Average temperatures in St Petersburg vary drastically. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a chance of rain or snow throughout most of the year. The area is less temperate than some — in the 23rd percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit St Petersburg, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally late July where highs are regularly around 77.1°F (25.1°C) with temperatures rarely dropping below 58.5°F (14.7°C) at night.

St Petersburg Temperatures (Fahrenheit)

Key
High
Average
Low

St Petersburg Temperatures (Celsius)

Key
High
Average
Low

“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

St Petersburg Perceived Temperature (F)

Key
High
Average
Low

St Petersburg Perceived Temperature (C)

Key
High
Average
Low

 

Average St Petersburg Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 26.4 21.5 16.2
Feb 26.7 21.1 14.9
Mar 37.1 30.5 23.2
Apr 49.9 41.6 32.4
May 63.1 53.9 42.7
Jun 68.8 60.2 49.3
Jul 75.1 66.4 56.4
Aug 71.5 62.9 53.6
Sep 61.2 53.6 45.9
Oct 48 42.5 36.5
Nov 38.8 35.1 30.8
Dec 31.6 27.6 23

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan -3.1 -5.8 -8.8
Feb -2.9 -6.1 -9.5
Mar 2.8 -0.8 -4.9
Apr 9.9 5.3 0.2
May 17.3 12.2 5.9
Jun 20.4 15.7 9.6
Jul 23.9 19.1 13.6
Aug 21.9 17.2 12
Sep 16.2 12 7.7
Oct 8.9 5.8 2.5
Nov 3.8 1.7 -0.7
Dec -0.2 -2.4 -5


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in St Petersburg are April, March, and then May. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid April. For example, on the week of April 16th there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in late August to early September with an average of 3 days of significant precipitation the week of August 27th.

When can you find snow in St Petersburg? Weather stations report very large amounts of snow likely to be deepest around March, especially close to early to mid March. The best time to ski (if at all) in St Petersburg is often around around March 12th when fresh powder is deepest. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chanceof Precipitation

The graph below shows the % chance of rainy and snowy days in St Petersburg.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in St Petersburg (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 26% 7.8 2.2
Feb 21% 9.5 1.7
Mar 18% 10.5 1.5
Apr 14% 3.1 1.3
May 20% 0.4 2.1
Jun 29% 0 3
Jul 27% 0 3.3
Aug 31% 0 4.2
Sep 23% 0 3
Oct 30% 1.4 2.5
Nov 28% 2.2 2.7
Dec 27% 6.1 2.8

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 26 19.8 5.6
Feb 21 24.1 4.3
Mar 18 26.7 3.8
Apr 14 7.9 3.3
May 20 1 5.3
Jun 29 0 7.6
Jul 27 0 8.4
Aug 31 0 10.7
Sep 23 0 7.6
Oct 30 3.6 6.4
Nov 28 5.6 6.9
Dec 27 15.5 7.1

 

Humidity and Wind

St Petersburg has some extremely humid months, with other comfortably humid months. The least humid month is May (54.9% relative humidity), and the most humid month is November (84.7%).

Wind in St Petersburg is usually calm. The windiest month is December, followed by March and November. December’s average wind speed of around 8.2 knots (9.5 MPH or 15.3 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late December where average top sustained speeds reach 14.3 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in St Petersburg.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 7.4 Gentle breeze 12.3 Significant breeze
Feb 6.7 Light breeze 11.5 Significant breeze
Mar 7.6 Gentle breeze 13.2 Significant breeze
Apr 7.4 Gentle breeze 13.6 Significant breeze
May 6.7 Light breeze 12.6 Significant breeze
Jun 6.4 Light breeze 12.4 Significant breeze
Jul 5.8 Light breeze 11.3 Significant breeze
Aug 6 Light breeze 11.5 Significant breeze
Sep 6 Light breeze 11.1 Significant breeze
Oct 6.9 Light breeze 12 Significant breeze
Nov 7.5 Gentle breeze 12.6 Significant breeze
Dec 8.2 Gentle breeze 13.6 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 83.6%
Feb 80.4%
Mar 69.7%
Apr 56.9%
May 54.9%
Jun 59.9%
Jul 63.5%
Aug 67.2%
Sep 74.8%
Oct 79.4%
Nov 84.7%
Dec 84.6%

 

Is it Safe to Travel to St Petersburg?

Our best data indicates this area is somewhat safe, but with extra warnings in a few regions. As of Dec 13, 2018 there are travel warnings and regional advisories for Russia; exercise a high degree of caution and avoid some areas. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories


 

The Busiest and Least Crowded Months

The busiest month for tourism in St Petersburg, Russia is July, followed by June and January. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit St Petersburg in December. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 50.6 in December means 50.6% of the tourists vs. July.



Overall St Petersburg Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 67.8°F (19.9°C) and 33.3°F (0.7°C) with far warmer temperatures in the later months. Rain is somewhat common with 4 to 6 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have comfortably cool weather with high temperatures that are comfortable. These months see the most precipitation with 8 to 10 days of precipitation per month. June – August is the busiest season for tourism in St Petersburg, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 64.1°F (17.8°C) and 33.2°F (0.7°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 7 to 9 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is far too cold this time of year in St Petersburg to be enjoyable for warm weather travelers. The average high during this season is between 34.4°F (1.3°C) and 21.7°F (-5.7°C). On average, it rains or snows a fair amount: 6 to 8 times per month. These times of year are fairly slow with tourists.

 

Best Times to TravelEastern Europe › St Petersburg, Russia


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