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Saint Petersburg, Russia climate
Dfb Warm-summer humid continental
Saint Petersburg has a seasonal cold-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 23°C, while the coldest is February averaging around −8°C at night. Around 668 mm of precipitation falls each year, peaking in August (86 mm) and easing off in March (35 mm). At latitude 60°N, day length swings from 5.6 hours in midwinter to 18.4 hours at midsummer.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsSaint Petersburg climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | −3 | −3 | 2 | 10 | 16 | 20 | 23 | 21 | 16 | 9 | 3 | −1 |
| Avg temp (°C) | −5 | −5 | −1 | 6 | 12 | 16 | 19 | 18 | 13 | 6 | 1 | −3 |
| Avg low (°C) | −7 | −8 | −4 | 2 | 7 | 12 | 15 | 14 | 9 | 4 | −1 | −5 |
| Precipitation (mm) | 47 | 36 | 35 | 37 | 47 | 69 | 84 | 86 | 57 | 63 | 56 | 51 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | −3 | −3 | 2 | 10 | 16 | 20 |
| Avg temp (°C) | −5 | −5 | −1 | 6 | 12 | 16 |
| Avg low (°C) | −7 | −8 | −4 | 2 | 7 | 12 |
| Precipitation (mm) | 47 | 36 | 35 | 37 | 47 | 69 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 23 | 21 | 16 | 9 | 3 | −1 |
| Avg temp (°C) | 19 | 18 | 13 | 6 | 1 | −3 |
| Avg low (°C) | 15 | 14 | 9 | 4 | −1 | −5 |
| Precipitation (mm) | 84 | 86 | 57 | 63 | 56 | 51 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 20 | 16 | 13 | 11 | 10 | 13 | 12 | 13 | 13 | 16 | 16 | 19 |
| Days with high ≥ 32°C (days) | — | — | — | — | 0.1 | 0.1 | 0.6 | 0.1 | — | — | — | — |
| Days with low ≤ 0°C (days) | 27 | 24 | 23 | 9 | 0.9 | — | — | — | 0.1 | 5 | 15 | 23 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 20 | 16 | 13 | 11 | 10 | 13 |
| Days with high ≥ 32°C (days) | — | — | — | — | 0.1 | 0.1 |
| Days with low ≤ 0°C (days) | 27 | 24 | 23 | 9 | 0.9 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 12 | 13 | 13 | 16 | 16 | 19 |
| Days with high ≥ 32°C (days) | 0.6 | 0.1 | — | — | — | — |
| Days with low ≤ 0°C (days) | — | — | 0.1 | 5 | 15 | 23 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 75 | 72 | 65 | 66 | 63 | 65 | 64 | 63 | 70 | 76 | 76 | 78 |
| Clear days (≤ 30% cloud) | 3 | 3 | 5 | 4 | 5 | 3 | 3 | 5 | 3 | 2 | 3 | 2 |
| Partly cloudy days (30–70%) | 8 | 8 | 11 | 10 | 10 | 12 | 13 | 11 | 9 | 7 | 6 | 7 |
| Cloudy days (≥ 70%) | 21 | 18 | 15 | 16 | 15 | 14 | 14 | 15 | 17 | 21 | 21 | 22 |
| Relative humidity (%) | 97 | 97 | 93 | 85 | 78 | 79 | 81 | 82 | 86 | 91 | 95 | 97 |
| Wind speed (km/h) | 7.1 | 7.0 | 6.3 | 5.1 | 4.5 | 4.5 | 4.3 | 4.8 | 5.3 | 5.7 | 6.3 | 7.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 75 | 72 | 65 | 66 | 63 | 65 |
| Clear days (≤ 30% cloud) | 3 | 3 | 5 | 4 | 5 | 3 |
| Partly cloudy days (30–70%) | 8 | 8 | 11 | 10 | 10 | 12 |
| Cloudy days (≥ 70%) | 21 | 18 | 15 | 16 | 15 | 14 |
| Relative humidity (%) | 97 | 97 | 93 | 85 | 78 | 79 |
| Wind speed (km/h) | 7.1 | 7.0 | 6.3 | 5.1 | 4.5 | 4.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 63 | 70 | 76 | 76 | 78 |
| Clear days (≤ 30% cloud) | 3 | 5 | 3 | 2 | 3 | 2 |
| Partly cloudy days (30–70%) | 13 | 11 | 9 | 7 | 6 | 7 |
| Cloudy days (≥ 70%) | 14 | 15 | 17 | 21 | 21 | 22 |
| Relative humidity (%) | 81 | 82 | 86 | 91 | 95 | 97 |
| Wind speed (km/h) | 4.3 | 4.8 | 5.3 | 5.7 | 6.3 | 7.1 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 29 years of daily observations at St. Petersburg, a weather station, about 3 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.