Annual mean 23°C · wettest around August · prevailing wind SW
Warmest
31.2 °C
Coldest
18.5 °C
Wettest
37%
Windiest
4.3 m/s
Prevailing
SW
3.6 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in St. Petersburg over the whole year is 23°C. July is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 14°C. St. Petersburg has no sharply defined rainy season: the chance of rain on a given day runs from 27% in March, the driest month, to 34% in August, the wettest. Winds in St. Petersburg are highest in April, averaging 3.4 m/s (12 km/h), and lightest in July, at 2.5 m/s (9 km/h). The prevailing wind is from the SW. The clearest skies in St. Petersburg come in May, when the sky is typically 35% covered; January is the cloudiest month, at 46%.
Month by month St. Petersburg climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
19°C
14°C
17°C
29%
46%
3.2 m/s
60
13
69
February
23°C
16°C
21°C
29%
41%
3.0 m/s
72
33
51
March
24°C
18°C
23°C
27%
37%
3.2 m/s
71
42
43
April
26°C
20°C
26°C
29%
37%
3.4 m/s
60
61
24
May
29°C
24°C
30°C
29%
35%
3.1 m/s
23
72
5
June
30°C
26°C
33°C
32%
43%
2.8 m/s
4
50
1
July
31°C
27°C
34°C
33%
40%
2.5 m/s
2
31
0
August
31°C
27°C
34°C
34%
41%
2.6 m/s
2
28
0
September
30°C
25°C
33°C
33%
41%
2.7 m/s
5
41
2
October
28°C
22°C
29°C
29%
40%
3.1 m/s
29
62
10
November
24°C
18°C
24°C
28%
42%
3.0 m/s
64
48
36
December
21°C
16°C
21°C
29%
41%
2.8 m/s
69
29
54
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short St. Petersburg weather by season
Year round, St. Petersburg has days of about 19°C at their warmest in January, its coolest month, and 31°C in July, its warmest; the coolest hours of the day run from 14°C to 27°C through the year, and the average temperature over the year is 23°C around the clock. Rain is most likely around August and least likely around March. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
St. Petersburg weather in winterDecember to February
High 21°CLow 15°CRain 29%
Winter in St. Petersburg has typical daily highs of about 21°C and lows of about 15°C, with a 29% chance of rain on a given day.
St. Petersburg weather in springMarch to May
High 26°CLow 21°CRain 28%
Spring in St. Petersburg has typical daily highs of about 26°C and lows of about 21°C, with a 28% chance of rain on a given day.
St. Petersburg weather in summerJune to August
High 31°CLow 27°CRain 33%
Summer in St. Petersburg has typical daily highs of about 31°C and lows of about 27°C, with a 33% chance of rain on a given day.
St. Petersburg weather in autumnSeptember to November
High 28°CLow 22°CRain 30%
Autumn in St. Petersburg has typical daily highs of about 28°C and lows of about 22°C, with a 30% chance of rain on a given day.
When is the rainy season in St. Petersburg?
St. Petersburg has no sharply defined rainy season: the chance of rain on a given day runs from 27% in March, the driest month, to 34% in August, the wettest.
What time of year is St. Petersburg windiest?
Winds in St. Petersburg are highest in April, averaging 3.4 m/s (12 km/h), and lightest in July, at 2.5 m/s (9 km/h). The prevailing wind is from the SW.
What is the average temperature in St. Petersburg year round?
The average temperature in St. Petersburg over the whole year is 23°C. July is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 14°C.