St. Petersburg
December
Weather in St. Petersburg for December 2025
Your guide to St. Petersburg weather in December - trends and predictions
In general, the average temperature in St. Petersburg at the beginning of December is 20.9 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 19.1 °F by the end of December.
St. Petersburg experiences moderate rainfall in December, with an average of 9 rainy days and a total precipitation of 61.8 mm.
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Temperatures
Rain 🌧️
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22
Dry days
9
Rainy days
0
Snow days
20°/14°
Temperatures
28 km/h
Avg max wind
70 %
Avg humidity
St. Petersburg in December average weather
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  23° | 2  22° | 3  21° | 4  21° | 5 21° | 6 20° | |
| 7 18° | 8 22° | 9 24° | 10 23° | 11  19° | 12 19° | 13  21° |
| 14 22° | 15 23° | 16 23° | 17 22° | 18 20° | 19 18° | 20 19° |
| 21 17° | 22 20° | 23  20° | 24 17° | 25 16° | 26 18° | 27 21° |
| 28 20° | 29 19° | 30 21° | 31 19° |
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Temperatures trend during December in St. Petersburg
See the weather trend as well as the moving average line
December weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Dec. 1 | Partly cloudy | 23° /15° | 0 mm | 6 | |
| Dec. 2 | Overcast | 22° /15° | 0 mm | 6 | |
| Dec. 3 | Light rain shower | 21° /15° | 1.6 mm | 5 | |
| Dec. 4 | Fog | 21° /13° | 0.6 mm | 5 | |
| Dec. 5 | Fog | 21° /14° | 0 mm | 6 | |
| Dec. 6 | Overcast | 20° /13° | 2 mm | 5 | |
| Dec. 7 | Partly cloudy | 18° /10° | 0 mm | 5 | |
| Dec. 8 | Overcast | 22° /13° | 0 mm | 6 | |
| Dec. 9 | Mist | 24° /16° | 0 mm | 6 | |
| Dec. 10 | Light rain shower | 23° /18° | 7.8 mm | 5 | |
| Dec. 11 | Sunny | 19° /12° | 5.8 mm | 5 | |
| Dec. 12 | Overcast | 19° /11° | 0 mm | 5 | |
| Dec. 13 | Cloudy | 21° /14° | 0 mm | 5 | |
| Dec. 14 | Overcast | 22° /18° | 0 mm | 5 | |
| Dec. 15 | Cloudy | 23° /17° | 3.5 mm | 5 | |
| Dec. 16 | Light rain shower | 23° /17° | 10.9 mm | 6 | |
| Dec. 17 | Patchy rain possible | 22° /18° | 1.5 mm | 5 | |
| Dec. 18 | Partly cloudy | 20° /17° | 0.2 mm | 5 | |
| Dec. 19 | Partly cloudy | 18° /15° | 0 mm | 5 | |
| Dec. 20 | Overcast | 19° /12° | 0 mm | 4 | |
| Dec. 21 | Partly cloudy | 17° /13° | 0 mm | 5 | |
| Dec. 22 | Overcast | 20° /13° | 0.5 mm | 5 | |
| Dec. 23 | Moderate rain at times | 20° /12° | 0.7 mm | 5 | |
| Dec. 24 | Overcast | 17° /11° | 0 mm | 4 | |
| Dec. 25 | Overcast | 16° /12° | 10.8 mm | 4 | |
| Dec. 26 | Overcast | 18° /12° | 0 mm | 4 | |
| Dec. 27 | Overcast | 21° /14° | 0 mm | 5 | |
| Dec. 28 | Sunny | 20° /13° | 3.2 mm | 5 | |
| Dec. 29 | Sunny | 19° /15° | 5.4 mm | 5 | |
| Dec. 30 | Patchy rain possible | 21° /16° | 0.1 mm | 5 | |
| Dec. 31 | Moderate rain at times | 19° /15° | 0.7 mm | 5 | |
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Important Notice
Our weather forecast for St. Petersburg in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the St. Petersburg forecast closer to your planned date for the most up-to-date weather information.
St. Petersburg in December - FAQ
What are the expected maximum and minimum temperatures in St. Petersburg during December?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in St. Petersburg during December?
Moderate rainfall is anticipated in St. Petersburg during December, with a total of 61.8 mm spread over approximately 9 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in St. Petersburg during December?
The average wind speed in St. Petersburg during December is 28 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in St. Petersburg
Explore the daily rainfall trends and prepare for St. Petersburgs December weather 💧
UV exposure in St. Petersburg during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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