5-day weather forecast Saint Petersburg 09-08-2026

Weather forecast Saint Petersburg Sunday, August 9 09.08.2026: sunny, temperature from 11 °C to 21 °C.

Precipitation probability 22%. Wind up to 4.89 m/s (gusts 7.19 m/s). Air humidity 43–86%, atmospheric pressure 761–763 mm Hg, UV index up to 6.

Weather Alerts

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ModerateAug 6, 03:00 AM — Aug 6, 08:00 AMTranslate with Google

Yellow severe thunderstorm warning: Gulf of Finland, Thu 3.00 - 8.00

Severe thunderstorm warning

Strong wind advisory: By night and in the morning thunderstorm wind gusts.

ModerateAug 3, 02:33 PM — Aug 7, 09:00 PMTranslate with Google

Other dangers

Уровень воды по г/п р. Неве-ст. Петрокрепость колеблется в районе неблагоприятной отметки 330 см БС, при которой судоходство испытывает затруднения.

ModerateAug 3, 02:33 PM — Aug 7, 09:00 PMTranslate with Google

Прочие опасности

Уровень воды по г/п р. Неве-ст. Петрокрепость колеблется в районе неблагоприятной отметки 330 см БС, при которой судоходство испытывает затруднения.

ModerateAug 5, 12:41 PM — Aug 8, 09:00 PMTranslate with Google

Other dangers

Уровень воды по г/п р. Неве-ст. Петрокрепость колеблется в районе неблагоприятной отметки 330 см БС, при которой судоходство испытывает затруднения.

ModerateAug 5, 12:41 PM — Aug 6, 09:00 PMTranslate with Google

Wind

в прибрежных районах местами порывы 15 м/с.

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Sunrise 04:59
Sunset 21:09

Waning Crescent9% illuminated
Moonrise 23:41 · Moonset 20:14

Chart

Sun, Aug 9, 2026

Forecast from 11 °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)	13	13	13	12	12	12	11	13	15	17	18	19	19	20	20	20	21	21	21	20	19	19	16	15
Precipitation (mm/hr)	0	0.01	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 (%)	17	85	12	7	9	1	0	0	0	10	5	4	7	4	8	14	18	26	24	49	90	40	16	24
Rain chance (%)	11	22	11	11	12	12	10	7	5	4	3	2	2	1	2	2	2	2	2	6	12	6	7	11

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)	3.19	3.31	3.19	2.89	2.89	2.69	2.39	2.19	2.81	3.61	4.31	4.61	4.69	4.81	4.89	4.69	4.5	4	2.69	1.69	3.5	4.19	2.89	3
Wind gust (m/s)	6.72	6.92	6.72	6.08	6.08	5.67	5	3.56	3.58	4.22	4.94	5.28	5.42	5.53	5.64	5.42	5.17	4.86	3.58	2.75	6.47	7.19	6.08	6.31
Wind direction (°)	WSW 242°	WSW 242°	WSW 242°	WSW 242°	WSW 252°	W 275°	WNW 287°	WNW 289°	WNW 287°	WNW 283°	W 281°	W 279°	W 277°	W 278°	W 279°	WNW 283°	WNW 287°	WNW 288°	W 277°	SW 218°	SW 214°	SW 231°	SW 225°	SW 215°

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	81	82	84	86	86	83	75	65	60	56	52	49	46	44	45	44	43	44	53	57	57	72	79

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	761	761	762	762	762	763	763	763	763	763	763	763	763	762	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	4	4	4	5	5	5	5	5	5	5	6	6	6	6	5	4	5	0	0

Sun, Aug 9, 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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