Saint Petersburg weather in December
In December, Saint Petersburg has an average high of −4 °C25 °F and an average low of −8 °C18 °F, with about 58 mm2.3 in of precipitation. It is the 10th warmest month of the year and ranks 8th for precipitation.
How December compares with other months
Compared with November, December is 4.6 °C8.2 °F cooler on average and drier by 8 mm0.3 in. Compared with January, December is 3.2 °C5.7 °F warmer on average and wetter by 9 mm0.4 in. Daylight lasts about 5.9 hours around the middle of the month. Average relative humidity is 98% and the average cloud amount 88%.
Is December a good time to visit Saint Petersburg?
December is not among the most comfortable months by our comfort score: it is cool (average high −4 °C25 °F) and nights are cold (average low −8 °C18 °F). The most comfortable months in Saint Petersburg are June–August.
What to wear in December
For Saint Petersburg in December, pack a winter coat, hat, gloves and warm, non-slip boots.
December in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Saint Petersburg | −425 | −818 | 582.3 |
| Velikiy Novgorod | −425 | −817 | 612.4 |
| Pskov | −327 | −720 | 672.6 |
| Lahti | −327 | −719 | 632.5 |
| Vantaa | −130 | −523 | 672.6 |
| Helsinki | 134 | −229 | 672.6 |
| Petrozavodsk | −720 | −1211 | 481.9 |
| Espoo | 134 | −228 | 702.7 |
| Tallinn | 033 | −327 | 572.3 |
Nearby places that are more than 1 °C1.8 °F warmer in December: Pskov, Vantaa, Helsinki and Espoo; cooler: Petrozavodsk.
Other months in Saint Petersburg
- January−6 °C20 °F / −11 °C11 °F
- February−5 °C23 °F / −11 °C12 °F
- March0 °C32 °F / −6 °C21 °F
- April8 °C46 °F / 0 °C32 °F
- May15 °C60 °F / 7 °C44 °F
- June19 °C66 °F / 11 °C52 °F
- July22 °C72 °F / 15 °C58 °F
- August20 °C69 °F / 13 °C55 °F
- September15 °C59 °F / 8 °C47 °F
- October7 °C45 °F / 2 °C36 °F
- November1 °C33 °F / −3 °C27 °F
- December−4 °C25 °F / −8 °C18 °F
Frequently asked questions
How warm is Saint Petersburg in December?
In December the average high in Saint Petersburg is -4 °C (25 °F) and the average low is -8 °C (18 °F).
Does it rain a lot in Saint Petersburg in December?
On average about 58 mm (2.3 in) of precipitation falls in December; it ranks 8th of the 12 months.
Is December the warmest month in Saint Petersburg?
No. The warmest month in Saint Petersburg is July, with an average high of 22 °C (72 °F). The coldest month is January, with an average low of -11 °C (11 °F).
How long is the day in Saint Petersburg in December?
In the middle of December the day in Saint Petersburg lasts about 5.9 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Saint Petersburg in December?
The average relative humidity in December is about 98%. This is a long-term average for the whole day.
How cloudy is Saint Petersburg in December?
On average about 88% of the sky is covered by cloud in December. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.