St Petersburg Weather in September

September in St Petersburg brings very high temperatures around 32°C (90°F) during the day, dropping to 25°C (77°F) at night, and as part of the rainy season, heavy rainfall is common.

Rainfall in St Petersburg in September

As part of the rainy season, St Petersburg sees around 18 days of rain in September, with an average of 205 mm (8.1 in). The rainy season here brings regular, substantial showers. It's worth being prepared for rain on most days you're out.

Temperature in St Petersburg in September

Expect highs of 32°C (90°F) in St Petersburg in September, with nights dropping to around 25°C (77°F). If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. Nights are warm at 25°C (77°F). It's worth making sure your accommodation has decent ventilation or air conditioning.

Sunshine in St Petersburg in September

Expect a lot of sunshine this month, with about 241 hours of sun. Showers typically arrive in the late afternoon or evening, keeping mornings and early afternoons sunny. Even during the wet season, there's plenty of sunshine for sightseeing.

September in St Petersburg can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.

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For a detailed overview over the year and the best time to visit the United States of America, check out our St Petersburg's climate page.

St Petersburg Temperature in September

Min Temperature 25°C (77°F)  

Max Temperature 32°C (90°F)  

Chance of Rain 59%  

Precipitation 205 mm (8.1 in)  

Rainy days 18 days  

Sunshine 241 hours *  

Percentage Sunshine 66% *  

* Data from: Clearwater, the United States of America (25 KM, 15 Miles).

What to Wear in St Petersburg in September

Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in St Petersburg in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

8/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our St Petersburg's climate page.

More climate data for St Petersburg

Temperature Rainfall Sunshine

See the full St Petersburg climate overview or explore weather in the United States of America.