5-day weather forecast Saint Petersburg 17-07-2026

Weather forecast Saint Petersburg tomorrow 17.07.2026: sunny, temperature from 11 °C to 25 °C.

Precipitation probability 9%. Wind up to 2.39 m/s (gusts 4.83 m/s). Air humidity 32–67%, atmospheric pressure 761–767 mm Hg, UV index up to 6.1.

Sunrise 04:07
Sunset 22:01

Waxing Crescent15% illuminated
Moonrise 08:09 · Moonset 22:48

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Table

← Thu, Jul 16

Fri, Jul 17, 2026

Sat, Jul 18 →

Forecast from 11 °C to 25 °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)	12	11	11	11	11	11	12	14	16	18	20	21	22	23	24	24	25	25	24	23	21	18	16	15
Precipitation (mm/hr)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	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 (%)	0	2	13	14	35	51	31	7	11	14	16	13	9	10	13	15	11	15	16	2	0	0	0	0
Rain chance (%)	4	4	5	5	7	9	7	3	3	2	2	1	1	1	1	1	1	1	1	1	2	3	3	4

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)	0.81	0.61	0.61	1	1.39	1.5	1.69	1.61	2	2	2.11	2.11	2.19	2.39	2.31	2.31	2.39	2.31	2	1.69	1.39	0.5	1.19	2.31
Wind gust (m/s)	1.67	1.25	1.25	2.11	2.94	3.14	3.47	2.47	2.56	2.31	2.42	2.42	2.53	2.75	2.64	2.64	2.75	2.78	2.61	2.5	2.72	1.06	2.53	4.83
Wind direction (°)	WNW 287°	W 276°	SW 235°	SW 226°	SSW 205°	SSW 193°	SSW 199°	SSW 207°	SSW 213°	SW 214°	SSW 211°	SSW 212°	SSW 208°	SSW 207°	SSW 207°	SSW 212°	SW 219°	SW 229°	WSW 237°	WSW 257°	W 273°	WSW 251°	SSE 154°	SSE 165°

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 (%)	60	63	64	65	66	67	65	58	51	46	42	38	36	34	33	32	32	32	33	43	53	58	59	62

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)	767	767	767	767	767	767	767	767	766	766	766	766	765	764	764	764	763	763	762	762	762	762	761	761

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	0.3	0.7	1.5	2.5	3.7	4.9	5.8	6.1	5.8	4.9	3.7	2.5	1.4	0.7	0.3	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)	15.6	17	21.9	25.8	24.6	21.6	22.2	19.9	24.4	19.1	16.4	15	14.5	14.5	14.3	14.4	14.8	14.6	12.8	11.8	9.3	10.5	13.2	18
PM10 (µg/m³)	21.2	24.3	27.7	33.2	32	28	28.5	26.5	31.4	22.6	19.1	18	17.7	17.5	19.2	20.8	21.5	19.6	18.5	15.8	16.4	16.7	17.8	25
Ozone (O₃) (µg/m³)	3	1	1	1	1	4	11	12	23	32	41	49	57	61	64	68	68	66	58	51	47	35	12	5
NO₂ (µg/m³)	60.2	58.4	61.2	66.9	70.2	60.4	52.7	52.7	60.3	52.5	40.7	38.5	37.7	38.3	43.8	44.8	45.4	44.4	45.8	51.9	56.3	56.7	62.5	71.2
SO₂ (µg/m³)	10.3	9.7	15.1	18	16.4	13.5	13.6	13.3	14	11	8.3	7.5	6.9	6.7	6.4	6.1	6	6.5	6.5	6.4	7.6	8.5	9.3	12.5
CO (µg/m³)	317	323	391	411	379	358	403	451	553	386	317	298	292	283	280	303	300	286	285	321	309	309	363	467

← Thu, Jul 16

Fri, Jul 17, 2026

Sat, Jul 18 →

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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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