Saint Petersburg Weather in May

The climate in Saint Petersburg during May can be summarized as hot, humid and reasonably dry.

May is in the spring in Saint Petersburg and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a steamy 30°C (87°F), whilst at night 20°C (68°F) is normal.

On average May is the 6th driest month of the year in Saint Petersburg with around 76mm 3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.

On the flip side this corresponds to an average of 10.8 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 May 2025.