Weather in St. Petersburg in September
St. Petersburg, United States averages a high of 29.5°C (85.1°F) and low of 24.6°C (76.3°F) in September, with 17 rain days and 9.7 hours of daily sunshine. Travel score: 72.3/100 (Good). The best time to visit St. Petersburg is November.
High
30°C85°F
Low
25°C76°F
🌧️
17
rain days
☀️
9.7
hrs/day sunshine
💧
79%
humidity
72— Good
September in St. Petersburg is hot and rainy — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in St. Petersburg?
How much does it rain in St. Petersburg in September?
St. Petersburg receives an average of 137.9mm of rainfall across 17 rainy days in September. The annual total is 1013mm.
What should I pack for St. Petersburg in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 30°C
🧥
Waterproof jacket
Frequent rain expected (17 rainy days)
☔
Umbrella
Essential for the rainy season
👢
Waterproof shoes
Keep your feet dry in wet conditions
🧴
Sunscreen SPF 30+
10 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
🎉Visiting United States in September?
Don't miss any public holidays — check before you book!
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Data based on 1994–2024 averages · Last updated: 2024-12-31