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)	30	29	29	29	29	29	29	29	29	30	30	30	31	31	31	31	30	30	30	30	30	30	30	30
Precipitation (mm/hr)	0	0	0	0	0	0	0.01	0.01	0.01	0.01	0.01	0.02	0.04	0	0.01	0.09	0.02	0.04	0.05	0.03	0.02	0.07	0.1	0.05

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 (%)	28	22	26	31	43	52	51	57	68	68	77	73	62	28	72	70	80	71	83	79	86	64	76	71
Rain chance (%)	7	7	7	8	10	11	11	12	13	12	13	13	12	6	12	17	14	15	18	17	18	17	22	17

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)	6	5.89	6	6.5	6.81	7.31	7.5	7.19	7	6.81	6.81	6.89	6.89	7.19	7.39	7.69	8.11	8.5	8.81	8.39	8.81	9	8.11	8.39
Wind gust (m/s)	8.08	8	8.19	8.83	9.28	9.94	10.19	9.75	9.33	8.72	8.56	8.47	8.33	8.67	8.75	9.11	9.53	10.17	10.83	10.47	11.42	12.14	10.86	11.39
Wind direction (°)	SW 234°	SW 235°	SW 234°	SW 236°	WSW 239°	WSW 242°	WSW 249°	WSW 252°	WSW 253°	WSW 249°	WSW 251°	WSW 248°	WSW 248°	WSW 245°	WSW 245°	WSW 244°	WSW 239°	WSW 240°	WSW 241°	WSW 240°	WSW 238°	WSW 248°	WSW 255°	WSW 255°

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 (%)	70	70	71	71	72	73	73	72	71	69	67	66	65	64	66	67	67	69	70	71	73	72	72	72

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)	759	759	758	758	758	758	758	759	760	760	761	761	761	761	761	761	760	760	759	759	759	760	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	0	0.5	1.7	4	6.4	7.1	8.8	11.1	9.8	7.1	4.2	1.8	0.5	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)	11	11.1	10.9	10.6	10.1	9.8	9.5	9.5	9.2	9.5	10.4	10.1	9.9	9.5	9.4	9.9	9.9	9.6	9	8.5	8.4	7.9	7.6	7.4
PM10 (µg/m³)	15.9	16.3	16.2	15.8	15.4	15	14.1	14.3	13.6	14.1	15.3	14.5	14.1	13.4	13	14	14.3	13.9	13.2	12.6	12.7	12.1	11.8	11.5
Ozone (O₃) (µg/m³)	71	69	67	67	68	69	70	72	75	80	87	92	94	95	94	92	88	84	80	76	73	70	67	65
NO₂ (µg/m³)	1.6	1.8	1.9	1.8	1.5	1.3	1.3	1.3	1.2	1	0.7	0.5	0.4	0.4	0.4	0.4	0.4	0.4	0.5	0.7	0.8	1	1.1	1.2
SO₂ (µg/m³)	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.5	0.5	0.5	0.6	0.6	0.6	0.5	0.5	0.5	0.5	0.5	0.4	0.4	0.3	0.3	0.3	0.3
CO (µg/m³)	112	106	101	97	94	93	96	101	105	106	105	104	103	103	102	102	102	102	103	103	104	105	106	106

← Tue, Jul 28

Wed, Jul 29, 2026

Thu, Jul 30 →

St. Petersburg on the map

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 →