5-day weather forecast Saint Petersburg 20-07-2026

Weather forecast Saint Petersburg Monday, July 20 20.07.2026: patchy rain possible, temperature from 12 °C to 21 °C.

Precipitation probability 26%. Wind up to 4.19 m/s (gusts 5.39 m/s). Air humidity 46–83%, atmospheric pressure 758–764 mm Hg, UV index up to 5.

Sunrise 04:13
Sunset 21:56

First Quarter43% illuminated
Moonrise 13:09 · Moonset 22:48

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Table

← Sun, Jul 19

Mon, Jul 20, 2026

Forecast from 12 °C to 21 °C and precipitation

Temperature & Precipitation
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Temperature (°C)	14	13	12	12	13	13	12	12	12	17	12	12	21	12	12	20	12	12	19	12	12	15	13	12
Precipitation (mm/hr)	0.01	0	0	0	0.01	0.01	0	0.02	0.01	0	0.01	0.01	0.07	0.01	0.02	0	0.02	0.01	0	0	0	0	0	0

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Cloud cover (%)	87	47	47	47	92	100	45	100	100	50	100	100	58	100	100	24	100	100	31	100	100	12	12	11
Rain chance (%)	17	10	11	12	25	26	11	26	24	6	23	22	17	21	21	3	22	22	4	19	18	7	7	7

Wind speed and direction

Wind & Wind gust
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Wind (m/s)	2.31	2	1.81	1.81	3.89	3.39	1.61	3.5	3.5	0.81	3.19	3.69	0.19	4.19	4	1.31	3.81	3.69	2.5	3.81	3.5	1.89	2	2.19
Wind gust (m/s)	4.42	4	3.78	3.78	5.33	4.61	2.89	4.61	4.58	0.92	4.11	4.72	0.22	5.39	5	1.5	5.03	4.78	3.14	5	4.64	3.75	4.11	4.5
Wind direction (°)	WSW 241°	SW 232°	SW 220°	SSW 209°	WNW 289°	WNW 299°	SSW 208°	NW 322°	NNW 344°	SW 234°	N 359°	N 4°	N 8°	N 8°	NNE 12°	N 355°	NNE 14°	NNE 15°	NNE 15°	NNE 26°	NE 35°	NNE 30°	NE 40°	NE 50°

Air humidity

Humidity
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Humidity (%)	71	72	74	75	83	83	74	80	79	55	76	75	46	73	73	47	74	75	51	72	70	71	72	73

Atmospheric pressure

Pressure
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Pressure (mm Hg)	761	761	761	761	758	758	762	759	760	762	761	761	762	762	763	762	764	764	762	764	764	763	763	763

Ultraviolet index

UV Index
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
UV Index	0	0	0	0	0	0	0.1	0.1	0.3	0.6	1.4	2.5	2.6	2.1	1	0.9	3	3	5	3	3	4	0	0

← Sun, Jul 19

Mon, Jul 20, 2026

Saint 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.

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