St Petersburg weather live forecast

Today's maximum temperature in St Petersburg is expected to be 18°C. Select a day from the live weather forecast for St Petersburg, Russia (Europe) for more weather parameters.

Tuesday
18th Aug
18

15

2

2
Wednesday
19th Aug
15

14

0

1
Thursday
20th Aug
19

14

5

3
Friday
21st Aug
19

13

6

3
Saturday
22nd Aug
18

14

6

2

5-day weather forecast updated at 04:00 on Tuesday 18th August 2026 GMT

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The 5-day weather forecast for Russia (Europe) (St Petersburg) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

St Petersburg weather forecast by day

Below are the detailed weather forecasts for St Petersburg for the next 5 days.

St Petersburg weather for Tuesday 18th August 2026

Expect mostly cloudy with light rain in St Petersburg, Russia (Europe) with a maximum temperature of 18°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 44% chance of some rain and a light breeze of 8 kph from the south-west.

18
°C maximum temperature
15
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
2
UV index (Low)
44
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
8
kph wind from SW

St Petersburg weather for Wednesday 19th August 2026

Expect isolated thunderstorms in St Petersburg, Russia (Europe) with a maximum temperature of 15°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 40-50 mm of rainfall expected with 97% chance of some rain and a gentle breeze of 13 kph from the west.

15
°C maximum temperature
14
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
1
UV index (Low)
97
% chance of some rain
<50
mm of rainfall expected
0
no heat & humidity
13
kph wind from W

St Petersburg weather for Thursday 20th August 2026

Expect broken clouds in St Petersburg, Russia (Europe) with a maximum temperature of 19°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south-west.

19
°C maximum temperature
14
°C minimum temperature
broken clouds
5
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
19
°C wind chill
11
kph wind from SW

St Petersburg weather for Friday 21st August 2026

Expect isolated thunderstorms in St Petersburg, Russia (Europe) with a maximum temperature of 19°C, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 51% chance of some rain and a light breeze of 9 kph from the south-west.

19
°C maximum temperature
13
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
3
UV index (Moderate)
51
% chance of some rain
<2
mm of rainfall expected
19
°C wind chill
9
kph wind from SW

St Petersburg weather for Saturday 22nd August 2026

Expect isolated thunderstorms in St Petersburg, Russia (Europe) with a maximum temperature of 18°C, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 53% chance of some rain and a light breeze of 7 kph from the west.