5-day weather forecast Saint Petersburg 18-03-2026

Weather forecast Saint Petersburg tomorrow 18.03.2026: sunny, temperature from 2 °C to 8 °C.

Precipitation probability 72%. Wind up to 3.31 m/s (gusts 6.42 m/s). Air humidity 61–94%, atmospheric pressure 771–774 mm Hg, UV index up to 1.5.

Sunrise 07:08
Sunset 19:07

Chart

Table

Type of temperature:

°C

°F

← Tue, 17 Mar

Wed, 18 Mar, 2026

Thu, 19 Mar →

Forecast from 2 °C to 8 °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)	3	3	3	3	3	3	3	2	2	3	4	5	6	7	8	8	8	7	6	4	3	3	3	3
Precipitation (mm/hr)	0	0	0	0	0	0.01	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

Cloud cover

Cloud cover
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 (%)	56	72	62	79	100	100	100	96	63	29	27	15	7	10	17	34	34	28	33	15	16	8	10	18

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	2.11	1.89	1.61	1.61	1.69	1.89	2	1.89	2	2.61	2.81	3	2.81	2.69	3	3.11	2.69	2	1.5	1.81	2.31	2.89	3.31
Wind gust (m/s)	4.83	4.42	4	3.19	3.03	3.06	3.36	3.47	3.19	3.11	3.5	3.5	3.69	3.39	3.28	3.81	4	3.67	2.97	2.86	3.78	4.83	5.92	6.42

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 (%)	85	87	89	89	90	92	94	94	91	87	78	72	68	65	63	61	62	67	74	82	85	86	86	86

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)	771	771	771	772	772	773	773	773	773	773	774	774	774	774	773	773	773	773	773	773	772	772	772	771

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	0.1	0.3	0.7	1.1	1.4	1.5	1.4	1.1	0.7	0.4	0.1	0	0	0	0	0

← Tue, 17 Mar

Wed, 18 Mar, 2026

Thu, 19 Mar →

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.

Learn more about our methodology →