5-day weather forecast St. Petersburg 23-08-2026

Weather forecast St. Petersburg Sunday, August 23 23.08.2026: overcast, temperature from 29 °C to 30 °C.

Precipitation probability 19%. Wind up to 4.81 m/s (gusts 9.69 m/s). Air humidity 58–73%, atmospheric pressure 761–763 mm Hg, UV index up to 9.9.

Sunrise 07:05
Sunset 20:01
Waxing Gibbous86% illuminated
Moonrise 17:35 · Moonset 03:02
Chart
Table
Sun, Aug 23, 2026
TemperatureRain chanceCloud coverHumidityPressureWindUV Index
00:00Weather
Partly cloudy
29 °C7% 32%68%762 mm HgSW 219° 2.89 (5.89) m/s0
01:00Weather
Partly cloudy
29 °C9% 45%70%761 mm HgSW 224° 3.19 (6.19) m/s0
02:00Weather
Clear
29 °C4% 5%65%761 mm HgWSW 253° 4 (4.42) m/s0
03:00Weather
Cloudy
29 °C13% 67%73%761 mm HgWSW 241° 4.31 (7.31) m/s0
04:00Weather
Overcast
29 °C19% 100%73%761 mm HgSW 231° 3.81 (3.89) m/s0
05:00Weather
Clear
29 °C4% 5%65%762 mm HgWSW 237° 3.61 (3.89) m/s0
06:00Weather
Overcast
29 °C18% 100%71%761 mm HgSW 231° 3.5 (3.69) m/s0
07:00Weather
Overcast
29 °C17% 98%70%762 mm HgSW 228° 4.39 (4.61) m/s0
08:00Weather
Overcast
29 °C14% 89%66%762 mm HgWSW 237° 3.81 (4.03) m/s0.3
09:00Weather
Partly cloudy
29 °C8% 42%67%763 mm HgSW 236° 4.19 (4.53) m/s1.2
10:00Weather
Cloudy
30 °C12% 74%66%763 mm HgWSW 247° 4.19 (4.22) m/s3.2
11:00Weather
Overcast
29 °C15% 100%63%763 mm HgSW 223° 4.19 (9.19) m/s5.8
12:00Weather
Overcast
30 °C13% 95%59%763 mm HgSW 217° 4.61 (7.61) m/s8.2
13:00Weather
Cloudy
30 °C8% 64%58%763 mm HgSW 218° 4.69 (8.69) m/s9.5
14:00Weather
Patchy rain possible
30 °C16% (0.01 mm/hr)100%65%763 mm HgSW 232° 4.69 (9.69) m/s9.9
15:00Weather
Patchy rain possible
30 °C16% (0.03 mm/hr)100%60%762 mm HgSW 232° 4.81 (8.81) m/s8.5
16:00Weather
Overcast
30 °C15% 99%62%762 mm HgSW 228° 4.31 (9.31) m/s6.1
17:00Weather
Patchy rain possible
30 °C16% (0.01 mm/hr)100%66%762 mm HgWSW 242° 4.39 (8.39) m/s3.4
18:00Weather
Overcast
29 °C16% 100%65%761 mm HgSW 233° 4.5 (9.5) m/s1.4
19:00Weather
Cloudy
29 °C13% 83%66%761 mm HgWSW 237° 4.19 (7.19) m/s0.3
20:00Weather
Overcast
29 °C16% 100%67%761 mm HgW 265° 4.81 (8.81) m/s0
21:00Weather
Overcast
29 °C16% 100%66%762 mm HgW 260° 3.81 (3.81) m/s0
22:00Weather
Overcast
29 °C16% 100%65%762 mm HgSSW 194° 3.19 (3.53) m/s0
23:00Weather
Overcast
29 °C15% 94%66%762 mm HgSSW 210° 3.69 (4) m/s0
Sun, Aug 23, 2026

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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.