Weather in Saint Petersburg for September 2025
In general, the average temperature in Saint Petersburg at the beginning of September is 21.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.4 °C by the end of September.
The climate of Saint Petersburg in September is notably wet, with an average of 11 rainy days.
Is September a good time to visit Saint Petersburg? check out the best time to travel to Saint Petersburg page.
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Saint Petersburg in September average weather
Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
---|---|---|---|---|---|---|
1 21° | 2 22° | 3 22° | 4 23° | 5 23° | 6 20° | 7 20° |
8 22° | 9 22° | 10 24° | 11 23° | 12 24° | 13 24° | 14 23° |
15 20° | 16 22° | 17 22° | 18 17° | 19 21° | 20 17° | 21 18° |
22 17° | 23 19° | 24 19° | 25 19° | 26 19° | 27 17° | 28 18° |
29 16° | 30 14° |
You can click on date
Temperatures trend during September in Saint Petersburg
September weather day by day
Date | Weather | Temperatures | Rain | UV | More |
---|---|---|---|---|---|
1 Sept. | Light rain shower | 21° /13° | 3.7 mm | 5 | |
2 Sept. | Cloudy | 22° /12° | 0.1 mm | 5 | |
3 Sept. | Moderate or heavy rain shower | 22° /13° | 6.2 mm | 6 | |
4 Sept. | Partly cloudy | 23° /12° | 0 mm | 7 | |
5 Sept. | Patchy rain possible | 23° /12° | 0.3 mm | 6 | |
6 Sept. | Cloudy | 20° /10° | 0.2 mm | 5 | |
7 Sept. | Partly cloudy | 20° /9° | 0 mm | 6 | |
8 Sept. | Mist | 22° /11° | 0 mm | 6 | |
9 Sept. | Partly cloudy | 22° /10° | 0 mm | 6 | |
10 Sept. | Partly cloudy | 24° /11° | 0 mm | 7 | |
11 Sept. | Partly cloudy | 23° /13° | 0.1 mm | 6 | |
12 Sept. | Sunny | 24° /14° | 0.3 mm | 6 | |
13 Sept. | Cloudy | 24° /14° | 0.9 mm | 6 | |
14 Sept. | Moderate rain | 23° /11° | 3.6 mm | 6 | |
15 Sept. | Overcast | 20° /10° | 0 mm | 6 | |
16 Sept. | Partly cloudy | 22° /10° | 0 mm | 6 | |
17 Sept. | Light rain shower | 22° /11° | 0.8 mm | 5 | |
18 Sept. | Mist | 17° /8° | 0 mm | 4 | |
19 Sept. | Patchy rain possible | 21° /8° | 1.2 mm | 5 | |
20 Sept. | Light rain | 17° /12° | 1.6 mm | 4 | |
21 Sept. | Patchy rain possible | 18° /10° | 0.1 mm | 5 | |
22 Sept. | Cloudy | 17° /7° | 0 mm | 4 | |
23 Sept. | Patchy rain possible | 19° /9° | 0.8 mm | 4 | |
24 Sept. | Light rain shower | 19° /10° | 0.4 mm | 5 | |
25 Sept. | Overcast | 19° /11° | 0.1 mm | 5 | |
26 Sept. | Overcast | 19° /11° | 1.4 mm | 5 | |
27 Sept. | Patchy rain possible | 17° /11° | 3.3 mm | 4 | |
28 Sept. | Mist | 18° /12° | 0.8 mm | 4 | |
29 Sept. | Sunny | 16° /8° | 0.9 mm | 5 | |
30 Sept. | Light rain shower | 14° /8° | 2.7 mm | 4 | |
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Saint Petersburg in September - FAQ
What to pack to Saint Petersburg in September?
As you prepare for your trip to Saint Petersburg in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Saint Petersburg, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
September rainfall patterns in Saint Petersburg
UV exposure in Saint Petersburg during September
Quick links
Get accurate weather forecasts for Saint Petersburg, located at latitude 59.939 and longitude 30.314. Stay updated with localized weather information tailored for Saint Petersburg.