5-day weather forecast Saint Petersburg 17-05-2026

Weather forecast Saint Petersburg tomorrow 17.05.2026: patchy rain possible, temperature from 10 °C to 17 °C.

Precipitation probability 100%. Wind up to 3.39 m/s (gusts 7.14 m/s). Air humidity 63–96%, atmospheric pressure 757–764 mm Hg, UV index up to 3.3.

Sunrise 04:17
Sunset 21:35

Waxing Crescent0% illuminated
Moonrise 03:32 · Moonset below the horizon

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Table

← Sat, May 16

Sun, May 17, 2026

Mon, May 18 →

Forecast from 10 °C to 17 °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)	10	10	11	11	11	12	12	13	13	12	13	12	11	14	15	17	17	16	15	15	13	11	10	10
Precipitation (mm/hr)	0	0	0	0.07	0.16	0.26	0.02	0.01	0.28	0	0.04	0.3	0	0	0	0	0.01	0	0.01	0	0.05	0.01	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 (%)	44	75	64	66	62	91	100	100	100	100	100	100	100	78	72	62	60	37	76	23	80	85	19	23
Rain chance (%)	0	0	0	100	100	100	69	88	100	0	78	100	0	0	0	0	87	0	74	0	82	83	0	0

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)	2.81	2.89	3.39	2.61	3	2.69	2.19	1.89	2.19	1.11	1.69	1.81	1.5	1.39	1.61	2.61	2.89	3.31	3.39	2.89	2.11	1.89	1.61	2
Wind gust (m/s)	5.89	6.08	7.14	5.03	5.5	4.72	3.78	2.83	3.06	1.64	2.33	2.5	2.33	1.72	1.89	3	3.33	3.92	4.33	4.03	3.72	4	3.36	4.19
Wind direction (°)	SE 146°	SSE 159°	S 185°	S 189°	SSW 195°	SSW 197°	SSW 194°	SSW 194°	SW 234°	W 274°	W 276°	W 280°	WNW 300°	WNW 287°	WNW 287°	W 278°	WNW 288°	WNW 297°	NW 304°	NW 306°	WNW 293°	WNW 295°	NW 314°	NW 324°

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 (%)	81	83	83	85	90	94	96	93	92	95	92	92	94	84	78	71	67	65	63	63	69	73	75	77

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)	757	757	758	758	758	758	759	760	760	760	761	761	762	762	762	762	763	763	763	763	764	764	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	0.1	0.4	0.7	0.9	0.8	0.6	1.3	1.6	2.6	3.3	2.5	1.7	0.9	0.4	0.2	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	17	16.2	13.6	11	9.8	9.3	9.1	9.8	11	12.7	14.7	14.8	15.6	11.4	10.4	10.1	10.3	10.6	10.2	9.8	10.2	12.1	12.4
PM10 (µg/m³)	24.3	28.9	30.3	17.3	14.2	11.9	11.4	11.5	11.9	13.4	16.3	21.6	21.5	21.4	17.4	16	17.7	18.6	17.5	15.5	15.4	18.2	16.6	17.1
Ozone (O₃) (µg/m³)	44	20	18	18	31	43	47	46	43	41	39	36	43	63	68	69	72	71	80	74	73	64	56	54
NO₂ (µg/m³)	77.7	92.9	96.3	74.8	41	23.4	20.5	20.9	22.1	31.6	41.6	49.1	36.4	37	34.5	29.3	28.7	29.5	27	29.8	32.3	39.1	39.6	43.6
SO₂ (µg/m³)	14.3	21.5	23.8	15.3	10.3	7.2	6.8	7.1	8.2	9.7	13.8	14.8	15	11.8	13.1	8.6	7.6	6.3	5.6	5.7	6.1	6.2	6.7	8.7
CO (µg/m³)	368.9	424.9	480.9	378.9	255.9	197.9	178.9	185.9	185.9	215.9	296.9	413.9	400.9	281.9	272.9	246.9	237.9	241.9	252.9	268.9	274.9	313.9	303.9	276.9

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Sun, May 17, 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.

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