5-day weather forecast St. Petersburg 31-07-2026

Weather forecast St. Petersburg Friday, July 31 31.07.2026: patchy rain possible, temperature from 29 °C to 30 °C.

Precipitation probability 59%. Wind up to 8.19 m/s (gusts 12.97 m/s). Air humidity 68–72%, atmospheric pressure 761–763 mm Hg, UV index up to 11.

Sunrise 06:53
Sunset 20:21
Waning Gibbous91% illuminated
Moonrise 21:48 · Moonset 08:48
Chart
Table

Forecast from 29 °C to 30 °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)292929292929292929302929303030303030303030293029
Precipitation (mm/hr)0.010.0100000.020.030.040.321.81.630.750.970.630.050.030.040.190.150.310.040.020.01

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 (%)565053565351537893887481807286767278808852728882
Rain chance (%)111110111111121620385959485045161416252636171815

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)6.8976.816.616.396.1165.896.56.616.816.617.1977.3188.198.117.697.116.616.56.615.81
Wind gust (m/s)9.429.589.229.038.758.318.258.118.838.729.039.6911.7512.1112.979.339.729.819.399.228.818.728.787.92
Wind direction (°)WSW 256°WSW 256°WSW 252°WSW 258°W 263°W 265°W 261°WSW 255°WSW 251°WSW 251°WSW 250°WSW 249°WSW 255°WSW 251°WSW 248°WSW 241°WSW 246°WSW 253°WSW 257°W 264°W 259°W 263°W 262°WSW 257°

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 (%)717171727272727170687070706968686968686970727170

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)762761761761761761761761762762763763763763762762761761761761761761761761

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 Index000000000.51.73.76.79.310.8119.46.73.91.70.50000

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.