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)	7.61	7.11	6.61	6	5.81	6	6.11	6.31	6.5	6.69	6.5	6.19	6	5.61	4.69	4	3.19	3	2.81	2.69	3.31	4.5	5.69	4.31
Wind gust (m/s)	8.72	7.92	7.22	6.64	6.5	6.83	7.33	7.89	8.31	8.42	7.5	6.83	6.39	6.03	5.61	5.22	4.72	4.61	4.61	4.22	4.5	5	6	4.31
Wind direction (°)	ENE 58°	NE 55°	NE 53°	NE 50°	NE 43°	NE 36°	NNE 33°	NNE 33°	NE 37°	NE 40°	NE 43°	NE 44°	NE 48°	NE 54°	NE 53°	NE 47°	NE 40°	NE 34°	NNE 33°	NE 39°	NE 40°	NNE 33°	NE 35°	ENE 57°

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 (%)	63	65	66	67	68	69	70	71	71	68	64	61	57	53	50	47	45	44	44	45	47	50	52	54

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)	764	764	764	764	764	764	764	764	764	764	764	764	764	764	764	763	762	762	762	762	763	763	764	764

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	0	0	0.5	1.7	3.6	5.6	6.9	6.9	5.7	3.7	1.7	0.5	0	0	0	0	0

Air quality & pollen

Air quality
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
PM2.5 (µg/m³)	9.8	9.3	9	8.9	8.8	8.6	8.4	8.1	7.9	7.9	8.6	9.5	10.4	10.6	10.5	10.4	10.4	10.2	9.9	9.7	9.6	9.2	8.7	8.5
PM10 (µg/m³)	12.9	12.3	11.9	11.8	11.8	11.5	11.2	10.7	10.3	10.1	11	12.3	13.7	14.3	14.3	14	13.7	13.3	12.7	12.3	11.9	11.2	10.3	9.9
Ozone (O₃) (µg/m³)	75	76	77	77	77	77	75	73	73	76	80	86	95	105	113	118	121	121	118	112	105	99	92	85
NO₂ (µg/m³)	6.3	5.8	5.4	5.3	5.2	5.4	5.9	6.7	7	6.7	5.9	5	3.7	2.2	1.2	0.9	1	1.6	2.9	4.6	6.1	7.3	8.3	9
SO₂ (µg/m³)	1	0.9	0.9	0.9	1	1	1	1.1	1.1	1.2	1.2	1.2	1.1	0.9	0.8	0.8	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
CO (µg/m³)	160	162	163	158	151	148	153	162	170	178	186	187	174	155	140	134	133	140	163	193	209.5	218	225.3	233

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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.

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5-day weather forecast St. Petersburg Oct 21, 2026

Forecast from 20 °C to 27 °C and precipitation

Cloud cover and precipitation probability

Wind speed and direction