5-day weather forecast St. Petersburg 19-08-2026

Weather forecast St. Petersburg Wednesday, August 19 19.08.2026: patchy rain possible, temperature from 16 °C to 17 °C.

Precipitation probability 23%. Wind up to 7.39 m/s (gusts 7.64 m/s). Air humidity 66–75%, atmospheric pressure 769–771 mm Hg, UV index up to 10.1.

Sunrise 07:03
Sunset 20:05
First Quarter48% illuminated
Moonrise 14:02 · Moonset Does not set today
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Table

Forecast from 16 °C to 17 °C and precipitation

Temperature & Precipitation
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Temperature (°C)161616161616161616161717171717171717171717171717
Precipitation (mm/hr)0.010.030.020.040.040.030.020.020.010.0100.01000000000000

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Cloud cover (%)100100100100997979100100100100767141925629910010010049512
Rain chance (%)171920232318171920201813677712191919191078

Wind speed and direction

Wind & Wind gust
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Wind (m/s)7.1177.397.396.896.816.616.116.616.616.616.116.696.56.56.315.815.695.395.395.55.3965.81
Wind gust (m/s)7.337.337.617.647.197.116.726.316.7576.946.616.836.56.896.335.835.835.55.615.645.646.115.92
Wind direction (°)SE 129°SE 131°SE 125°ESE 120°ESE 117°ESE 116°ESE 113°ESE 113°ESE 108°ESE 107°ESE 106°ESE 106°ESE 102°E 101°ESE 105°ESE 107°ESE 109°ESE 109°ESE 110°ESE 109°ESE 111°ESE 113°ESE 111°ESE 117°

Air humidity

Humidity
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Humidity (%)666671727272726870716867687068707271717171707375

Atmospheric pressure

Pressure
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Pressure (mm Hg)770770770770769769769770770770770771770770770770769769769769770770770770

Ultraviolet index

UV Index
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
UV Index000000000.31.33.468.51010.18.66.13.51.40.40000

Air quality & pollen

Air quality
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
PM2.5 (µg/m³)8.79.19.49.71010.210.19.598.78.57.776.86.76.36.36.16.67.17.98.89.810.6
PM10 (µg/m³)1313.513.914.314.615.114.914.113.112.712.411.110.19.79.48.98.98.89.410.11112.213.414.4
Ozone (O₃) (µg/m³)727374747474757677798183858788888888878786858584
NO₂ (µg/m³)1.71.81.91.91.91.81.71.61.41.210.90.80.70.70.60.60.81.31.92.63.33.94.6
SO₂ (µg/m³)0.40.50.50.50.50.50.50.40.40.40.40.40.50.50.60.60.60.60.60.70.70.80.90.9
CO (µg/m³)1051071071049997100106111115118119116110106105106109118129142153164.5179

St. Petersburg on the map

Data Sources & Methodology

Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.