Climate averages 1991–2020
Saint Petersburg weather
in May.
A cool, moderately wet month: the 5th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a cool month in Saint Petersburg: daytime highs average 14.0°C and nights cool to about 6.1°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 50 mm of rain on roughly 9 days, which makes May a moderately wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 17 h 06 min on an average May day.
The nearest other city in this atlas is Peterhof (24 km away). In May its highs average 13.5°C, 0.5°C cooler than Saint Petersburg, with 48 mm of rain.
Among the 236 cities listed in Russia, Saint Petersburg ranks 211th of 236 for the warmest May highs and joint 87th of 236 for the driest May (rainfall, lowest first). The mean May high of those 236 cities is 17.0°C; Saint Petersburg is 3.0°C cooler than that mean.
From May to June, average highs rise by 4.5°C to 18.5°C, and monthly rainfall rises from 50 mm to 64 mm.
The annual picture
May in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Saint Petersburg climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -3.8°C-7.7°C | -7.7°C | 41 | 11.2 | 6.87 h |
| February | -4.0°C-8.4°C | -8.4°C | 32 | 9.2 | 9.19 h |
| March | 0.3°C-5.3°C | -5.3°C | 36 | 9.1 | 11.812 h |
| April | 7.1°C-0.1°C | -0.1°C | 39 | 9.3 | 14.515 h |
| May, selected | 14.0°C6.1°C | 6.1°C | 50 | 9.2 | 17.117 h |
| June | 18.5°C11.1°C | 11.1°C | 64 | 11.4 | 18.719 h |
| July | 21.5°C14.6°C | 14.6°C | 65 | 11.1 | 18.018 h |
| August | 19.7°C13.5°C | 13.5°C | 70 | 11.2 | 15.616 h |
| September | 14.4°C9.1°C | 9.1°C | 55 | 11.0 | 13.013 h |
| October | 7.3°C3.5°C | 3.5°C | 62 | 12.3 | 10.210 h |
| November | 1.6°C-1.4°C | -1.4°C | 56 | 12.0 | 7.68 h |
| December | -1.6°C-5.0°C | -5.0°C | 49 | 12.2 | 6.16 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Peterhof in MayRussia · 24 kmHigh 13.5°C · Low 6.4°C · 48 mm rain
- Pushkin in MayRussia · 25 kmHigh 15.1°C · Low 5.4°C · 58 mm rain
- Kolpino in MayRussia · 26 kmHigh 15.2°C · Low 6.0°C · 58 mm rain
- Gatchina in MayRussia · 42 kmHigh 15.0°C · Low 5.4°C · 57 mm rain
- Vyborg in MayRussia · 121 kmHigh 13.6°C · Low 5.7°C · 45 mm rain
- Velikiy Novgorod in MayRussia · 167 kmHigh 16.1°C · Low 7.9°C · 63 mm rain
- Lappeenranta in MayFinland · 170 kmHigh 14.0°C · Low 5.2°C · 46 mm rain
- Kouvola in MayFinland · 224 kmHigh 14.7°C · Low 5.8°C · 46 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Saint Petersburg) is explained once on the Saint Petersburg year overview and on the Sources, method and limits page.