The climate in Saint Petersburg during October can be summarized as cool and reasonably dry.
October is in the fall / autumn in Saint Petersburg and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a cool 8°C (47°F), whilst at night 3°C (38°F) is normal.
|Daytime temperature||8.2°C 46.7°F|
|Nightly temperature||3.3°C 37.9°F|
|Average temperature||5.7°C 42.3°F|
|Daily sunshine||2.7 hrs|
|Avg rainfall||64 mm 2.5 ins|
|Rainy days||17 days|
|Sea temperature||9.1°C 48.4°F|
|Windspeed||11.5kph 7 mph|
On average October is the 4th wettest month of the year in Saint Petersburg with around 64mm 2.5 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.
On the flip side this corresponds to an average of 2.7 hours of sunshine per day.
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 Saint Petersburg in October 2021.
|Hottest month:||July||21.8°C 71.2°F|
|Driest month:||February||31mm 1.2ins|
|Coldest month:||January||-5.3°C 22.5°F|
|Wettest month:||August||83mm 3.3ins|