The first week of calendar autumn will delight St. Petersburg residents with warm weather, by September standards. The first half of the week is expected to be particularly comfortable, mostly sunny and dry, when a ridge of high pressure from the north will be responsible for shaping the weather pattern — though we should not forget about cool nights.
Starting Thursday, control of the weather will shift to a cyclone from the west, which will bring clouds and pockets of rain to the region, but it will not get colder.
Weather forecast for St. Petersburg from September 1 to 5
Monday, September 1: cloudy with clear spells, no significant precipitation. Daytime +17…+19°C. North wind, 3–8 m/s. Atmospheric pressure will rise to 761 mm Hg, which is around normal.
Tuesday, September 2: variable cloudiness, no precipitation. Night +9…+11°C, daytime +19…+21°C. Northeast wind, 3–8 m/s. Atmospheric pressure will rise to 763 mm Hg, which is above normal.
Wednesday, September 3: variable cloudiness, no precipitation. Night +8…+10°C, daytime +21…+23°C. Southeast wind, 4–9 m/s. Atmospheric pressure will change little and will be 764 mm Hg, which is above normal.
Thursday, September 4: variable cloudiness, with isolated light rain during the day. Night +10…+12°C, daytime +20…+22°C. Southeast wind, 3–8 m/s. Atmospheric pressure will be stable at 764 mm Hg, which is above normal.
Friday, September 5: cloudy with clear spells, light rain. Night +12…+14°C, daytime +21…+23°C. Southeast wind, 3–8 m/s. Atmospheric pressure will rise slightly to 766 mm Hg, which is above normal.
According to preliminary forecasts, the start of the weekend will be cloudy but mostly dry and warm, with daytime temperatures expected to reach +21…+23°C.