Lomonosov Weather in August

What's the weather like in Lomonosov (St.-Petersburg) in August 2025?

The climate in Lomonosov during August can be summarized as mild and a little damp.

August is in the summer in Lomonosov and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around 20°C (68°F), whilst at night 12°C (54°F) is normal.

Lomonosov weather averages (imperial / metric)
Daytime temperature 19.8°C 67.6°F
Nightly temperature 12°C 53.6°F
Average temperature 15.9°C 60.6°F
Daily sunshine 7.8 hrs
Avg rainfall 85 mm 3.4 ins
Rainy days 15 days
Sea temperature 16.3°C 61.4°F
Humidity 77%
Windspeed 9kph 6 mph

On average August is the wettest month of the year in Lomonosov with around 85mm 3.4 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.8 hours of sunshine per day.

August temperatures in Lomonosov

Lomonosov average temperature in August

August rainfall

Lomonosov average rain in August

August hourly sunshine

Lomonosov average rain in August

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Lomonosov in August 2025.

Other monthly averages

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Lomonosov weather stats

Lomonosov weather statistics
Hottest month: July 21.5°C 70.7°F
Driest month: February 32mm 1.3ins
Sunniest month: June 10.9hrs
Coldest month: January -5.6°C 21.9°F
Wettest month: August 85mm 3.3ins
Map showing location of Lomonosov (59.90612, 29.77253) Lomonosov map pin © Google

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