Saint Petersburg climate

Name: Saint Petersburg
Address: RU

Saint Petersburg is warmest in July, with average highs of 22 °C, and coldest in February, when nights average -8.6 °C. August is the wettest month (73 mm) and February the driest (33 mm). Figures are 1991–2020 climate normals.

Across a full year Saint Petersburg averages 632 mm of rain, 11 days above 25 °C and 148 days below freezing.

Russia · population 5,351,935 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month July 22 °C
Coldest month February -8.6 °C
Driest month February 33 mm
Wettest month August 73 mm
Least cloud May 57 % cloud
Hottest on record August 35 °C
Coldest on record January -31 °C

What to expectSaint Petersburg through the year

Saint Petersburg has a clear annual cycle: average daily highs run from -4.0 °C in February to 22 °C in July, a swing of 24 °C in mean temperature across the year.

Counted across a normal year, 11 days a year reach 25 °C, 1 of them reach 30 °C, 148 nights drop below freezing. The warmest reading in the 1991–2020 record is 35 °C, in August.

Rain is spread fairly evenly through the year, from 33 mm in February to 73 mm in August. There is no dry season to aim for.

Month by month

Month	Avg high	Rainfall	Cloud
January	-3.8 °C	42 mm	87 %
February	-4.0 °C	33 mm	84 %
March	0.3 °C	36 mm	70 %
April	7.2 °C	40 mm	65 %
May	14.1 °C	51 mm	57 %
June	18.5 °C	65 mm	60 %
July	21.5 °C	67 mm	59 %
August	19.8 °C	73 mm	63 %
September	14.5 °C	55 mm	69 %
October	7.3 °C	62 mm	77 %
November	1.6 °C	57 mm	86 %
December	-1.5 °C	49 mm	88 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C	Days below 0 °C
January	-3.8 °C	-7.9 °C	-5.7 °C	7.3 °C	-30.7 °C	0	0	28
February	-4.0 °C	-8.6 °C	-6.1 °C	6.3 °C	-27.5 °C	0	0	26
March	0.3 °C	-5.5 °C	-2.5 °C	12.9 °C	-21.5 °C	0	0	28
April	7.2 °C	-0.4 °C	3.5 °C	22.5 °C	-13.5 °C	0	0	17
May	14.1 °C	5.8 °C	10.3 °C	29.0 °C	-3.8 °C	1	0	2
June	18.5 °C	10.9 °C	15.1 °C	31.5 °C	3.4 °C	2	0	0
July	21.5 °C	14.3 °C	18.2 °C	34.3 °C	7.8 °C	5	1	0
August	19.8 °C	13.2 °C	16.6 °C	35.1 °C	5.2 °C	2	0	0
September	14.5 °C	8.9 °C	11.7 °C	26.0 °C	-0.6 °C	0	0	0
October	7.3 °C	3.3 °C	5.4 °C	17.8 °C	-10.8 °C	0	0	6
November	1.6 °C	-1.5 °C	0.1 °C	9.9 °C	-20.6 °C	0	0	17
December	-1.5 °C	-5.0 °C	-3.2 °C	8.7 °C	-25.8 °C	0	0	25

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	42 mm	11	6.7 h/day	87 %	87 %	22 km/h
February	33 mm	9	9.1 h/day	84 %	86 %	21 km/h
March	36 mm	9	12 h/day	70 %	82 %	20 km/h
April	40 mm	9	15 h/day	65 %	77 %	19 km/h
May	51 mm	9	17 h/day	57 %	70 %	19 km/h
June	65 mm	11	19 h/day	60 %	72 %	19 km/h
July	67 mm	11	18 h/day	59 %	74 %	17 km/h
August	73 mm	11	16 h/day	63 %	77 %	18 km/h
September	55 mm	11	13 h/day	69 %	81 %	20 km/h
October	62 mm	12	10 h/day	77 %	86 %	21 km/h
November	57 mm	12	7.6 h/day	86 %	87 %	22 km/h
December	49 mm	12	6.0 h/day	88 %	88 %	23 km/h

How Saint Petersburg compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Saint Petersburg	22 °C	-8.6 °C	632 mm	11
Velikiy Novgorod · Russia	22 °C	-8.4 °C	739 mm	17
Pskov · Russia	22 °C	-8.0 °C	672 mm	15
Vantaa · Finland	22 °C	-8.0 °C	672 mm	12

Where Saint Petersburg ranks

Ranking	Position	Value
The coolest places in Europe in April	29th of 50	7.2 °C
The coolest places in Europe in May	34th of 50	14 °C
The coolest places in the world in April	35th of 50	7.2 °C
The coolest places in Europe in September	37th of 50	14 °C
The coolest places in Europe in October	44th of 50	7.3 °C
The coolest places in the world in September	48th of 50	14 °C

Planning a trip? See the best time to visit Saint Petersburg.

QuestionsCommon questions about Saint Petersburg’s climate

When is the best time to visit Saint Petersburg?

That depends on what you want, so the honest answer is a comparison rather than a single month. June, July, August sit closest to 20 °C on average, July is the warmest month and February the driest. The month-by-month table above has the full picture.

How hot does Saint Petersburg get?

In July, the warmest month, daily highs average 22 °C. About 1 days a year pass 30 °C. The highest value in the 1991–2020 record is 35 °C.

How cold does it get in winter?

Nights average -8.6 °C in February, the coldest month. A normal year has 148 nights below freezing.

Which month is wettest in Saint Petersburg?

August, averaging 73 mm over 11 days with rain. The driest month is February with 33 mm. The year as a whole averages 632 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Saint Petersburg rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Data point: 59.939°, 30.314° (the coordinates the reanalysis values are taken for)
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.