5-day weather forecast St. Petersburg 09-07-2026

Weather forecast St. Petersburg Thursday, July 9 09.07.2026: patchy rain possible, temperature from 29 °C to 31 °C.

Precipitation probability 12%. Wind up to 5.11 m/s (gusts 6.44 m/s). Air humidity 65–70%, atmospheric pressure 763–766 mm Hg, UV index up to 6.

Sunrise 06:41
Sunset 20:30

Waning Crescent19% illuminated
Moonrise 01:45 · Moonset 15:33

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Table

← Wed, Jul 8

Thu, Jul 9, 2026

Fri, Jul 10 →

Forecast from 29 °C to 31 °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)	30	29	29	29	29	29	29	29	29	29	30	30	30	30	31	31	31	31	31	31	30	30	30	31
Precipitation (mm/hr)	0.01	0	0	0	0	0	0	0.01	0.07	0.42	0.09	0.08	0.11	0.19	0.01	0	0	0	0	0	0	0.07	0.24	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 (%)	77	19	18	26	27	56	66	67	75	83	89	96	64	74	76	24	23	20	14	17	12	82	76	12
Rain chance (%)	12	6	6	7	7	10	11	12	18	44	22	23	19	25	13	6	6	5	5	6	6	19	26	6

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)	1.11	1.61	1.61	1.19	1.39	2.11	2	1.31	0.81	0.89	1.11	1.5	2.31	3	3.31	3.61	4.11	4.39	5.11	3.69	3.69	2.89	2.61	2.89
Wind gust (m/s)	1.53	2.22	2.22	1.69	1.97	2.92	2.81	1.81	1.08	1.19	1.42	1.92	2.92	4.11	4.64	4.47	5.06	5.47	6.44	4.81	4.97	3.97	3.64	4.22
Wind direction (°)	SSE 157°	S 170°	SW 220°	SW 231°	SSW 213°	SSW 199°	SSW 204°	SSW 192°	SSE 166°	SSE 151°	S 184°	SW 214°	SW 229°	WSW 245°	WSW 253°	WSW 250°	WSW 246°	WSW 242°	WSW 244°	WSW 248°	W 262°	WNW 291°	NNW 328°	N 8°

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 (%)	66	68	69	68	68	68	69	69	70	70	69	69	70	70	68	67	66	65	67	67	69	68	68	69

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)	764	764	764	764	764	764	764	764	765	765	765	766	766	766	765	764	764	764	763	764	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	0	0.5	1.5	2.2	1.8	3	5.2	5.9	6	5.5	3.6	1.8	0.6	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)	6.4	6.8	7.2	7.8	9	10.8	12.8	14.1	15.4	16.4	17.1	17.5	17.4	16.9	15.9	14.6	13.2	12.2	11.8	11.7	11.7	11.8	12.3	13.2
PM10 (µg/m³)	8.8	9.3	10.2	11.6	14.6	19.2	25.1	28.1	31.1	34.2	37.6	39.9	40	38.4	35.3	31.4	27.8	26	25.6	26.5	27.3	27.6	28.8	31.5
Ozone (O₃) (µg/m³)	38	38	39	41	44	47	49	51	54	60	68	75	80	84	86	86	85	83	79	73	68	63	59	56
NO₂ (µg/m³)	6	6.8	7.2	7.1	6.5	6	5.6	5.1	4.5	3.5	2.2	1.3	0.9	0.8	0.7	0.7	0.7	0.8	1	1.2	1.5	1.8	2.2	2.5
SO₂ (µg/m³)	0.5	0.6	0.6	0.6	0.7	0.7	0.7	0.6	0.6	0.6	0.5	0.5	0.5	0.5	0.5	0.5	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4
CO (µg/m³)	150	160	163	155	142	131	126	124	125	130	137	141	138	131	126	126	128	131	136	142	146	147	147	147

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Thu, Jul 9, 2026

Fri, Jul 10 →

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Data Sources & Methodology

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