Climate averages 1991–2020
Petrozavodsk weather
in August.
A mild, moderately wet month: the 2nd warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a mild month in Petrozavodsk: daytime highs average 18.4°C and nights cool to about 13.1°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 88 mm of rain on roughly 13 days, which makes August a moderately wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 15 h 57 min on an average August day.
The nearest other city in this atlas is Joensuu (254 km away). In August its highs average 18.1°C, about as warm as Petrozavodsk, with 82 mm of rain.
Among the 236 cities listed in Russia, Petrozavodsk ranks 219th of 236 for the warmest August highs and joint 213th of 236 for the driest August (rainfall, lowest first). The mean August high of those 236 cities is 22.4°C; Petrozavodsk is 4.0°C cooler than that mean.
From August to September, average highs fall by 5.4°C to 13.0°C, and monthly rainfall falls from 88 mm to 58 mm.
The annual picture
August 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
Petrozavodsk climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -6.1°C-10.4°C | -10.4°C | 32 | 8.8 | 6.36 h |
| February | -6.0°C-10.4°C | -10.4°C | 28 | 8.2 | 8.89 h |
| March | -1.2°C-6.5°C | -6.5°C | 33 | 8.8 | 11.712 h |
| April | 5.2°C-1.5°C | -1.5°C | 37 | 9.0 | 14.715 h |
| May | 12.1°C4.6°C | 4.6°C | 55 | 10.9 | 17.618 h |
| June | 17.4°C10.8°C | 10.8°C | 68 | 12.1 | 19.419 h |
| July | 20.5°C14.5°C | 14.5°C | 86 | 14.0 | 18.619 h |
| August, selected | 18.4°C13.1°C | 13.1°C | 88 | 13.4 | 16.016 h |
| September | 13.0°C8.6°C | 8.6°C | 58 | 11.6 | 13.013 h |
| October | 5.8°C2.6°C | 2.6°C | 55 | 11.5 | 10.110 h |
| November | -0.1°C-3.1°C | -3.1°C | 49 | 10.9 | 7.27 h |
| December | -3.4°C-7.2°C | -7.2°C | 41 | 11.4 | 5.45 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
August in nearby cities
- Joensuu in AugustFinland · 254 kmHigh 18.1°C · Low 13.6°C · 82 mm rain
- Saint Petersburg in AugustRussia · 300 kmHigh 19.7°C · Low 13.5°C · 70 mm rain
- Kolpino in AugustRussia · 305 kmHigh 20.2°C · Low 13.1°C · 85 mm rain
- Pushkin in AugustRussia · 315 kmHigh 20.1°C · Low 12.5°C · 85 mm rain
- Peterhof in AugustRussia · 320 kmHigh 18.9°C · Low 13.5°C · 74 mm rain
- Vyborg in AugustRussia · 322 kmHigh 19.6°C · Low 13.6°C · 71 mm rain
- Gatchina in AugustRussia · 336 kmHigh 19.9°C · Low 12.4°C · 82 mm rain
- Lappeenranta in AugustFinland · 337 kmHigh 19.6°C · Low 13.1°C · 75 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 Petrozavodsk) is explained once on the Petrozavodsk year overview and on the Sources, method and limits page.