Our verdict
The best time to visit St. Petersburg is April
The very hottest temperatures in St. Petersburg get to around 29℃ (84℉) in the height of summer. The weather in the winter, especially around January, can reach a minimum of -16℃ (3℉).
If you want to get the most out of your time visiting St. Petersburg, or you’re just afraid of the dark, the days in July are usually the longest between sunrise and sunset. The wet season in St. Petersburg falls around July, so if you prefer the dryer weather, you should look to visit in April instead.
Learn everything you need to know (and none of the stuff you don’t) about when to go to St. Petersburg below. Be sure to check out the handy tools we’ve included to help you search for flights and transport, accommodation, and everything else you need to plan and book your trip.
Quick links: Fast facts / Seasons / Average temperatures / Monthly climate / FAQs / Map
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St. Petersburg seasons
Before you continue, it’s important to know when the seasons are in St. Petersburg as they might be different to yours depending on where in the world you’re travelling from. St. Petersburg is in the Northern Hemisphere, so the seasons fall during these months:
| Season | Months |
|---|---|
| Summer | June to August |
| Autumn/fall | September to November |
| Winter | December to February |
| Spring | March to May |
Average temperatures in St. Petersburg
If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in St. Petersburg for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.
St. Petersburg climate by month
If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in St. Petersburg for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.
Jump to:
St. Petersburg in January
- Average temperature: -6℃ (21℉)
- Average high temperature: -5℃ (24℉)
- Average low temperature: -8℃ (17℉)
- Average humidity: 93%
- Average sunny days: 9 days
- Average rainfall: 32mm (1") over 5 days
- Average snow days: 20 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to St. Petersburg in January, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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St. Petersburg in February
- Average temperature: -5℃ (23℉)
- Average high temperature: -3℃ (26℉)
- Average low temperature: -8℃ (18℉)
- Average humidity: 94%
- Average sunny days: 8 days
- Average rainfall: 30mm (1") over 4 days
- Average snow days: 19 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to St. Petersburg in February, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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St. Petersburg in March
- Average temperature: -2℃ (29℉)
- Average high temperature: 0℃ (33℉)
- Average low temperature: -5℃ (24℉)
- Average humidity: 89%
- Average sunny days: 10 days
- Average rainfall: 31mm (1") over 9 days
- Average snow days: 18 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to St. Petersburg in March, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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St. Petersburg in April
- Average temperature: 4℃ (39℉)
- Average high temperature: 7℃ (45℉)
- Average low temperature: 1℃ (33℉)
- Average humidity: 80%
- Average sunny days: 11 days
- Average rainfall: 29mm (1") over 13 days
- Average snow days: 7 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to St. Petersburg in April, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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St. Petersburg in May
- Average temperature: 11℃ (52℉)
- Average high temperature: 15℃ (58℉)
- Average low temperature: 6℃ (43℉)
- Average humidity: 70%
- Average sunny days: 16 days
- Average rainfall: 33mm (1") over 13 days
- Average snow days: 1 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to St. Petersburg in May, make sure you pack a warm jacket or coat.
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St. Petersburg in June
- Average temperature: 15℃ (58℉)
- Average high temperature: 18℃ (65℉)
- Average low temperature: 10℃ (50℉)
- Average humidity: 71%
- Average sunny days: 12 days
- Average rainfall: 36mm (1") over 15 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to St. Petersburg in June, make sure you pack a warm jacket or coat.
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St. Petersburg in July
- Average temperature: 18℃ (65℉)
- Average high temperature: 22℃ (72℉)
- Average low temperature: 14℃ (56℉)
- Average humidity: 73%
- Average sunny days: 11 days
- Average rainfall: 54mm (2") over 17 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to St. Petersburg in July, make sure you pack a light jumper or hoodie for the evenings and some light clothes for the daytime.
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St. Petersburg in August
- Average temperature: 17℃ (62℉)
- Average high temperature: 20℃ (68℉)
- Average low temperature: 13℃ (55℉)
- Average humidity: 76%
- Average sunny days: 12 days
- Average rainfall: 52mm (2") over 17 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to St. Petersburg in August, make sure you pack a light jumper or hoodie for the evenings and some light clothes for the daytime.
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St. Petersburg in September
- Average temperature: 12℃ (54℉)
- Average high temperature: 15℃ (59℉)
- Average low temperature: 9℃ (48℉)
- Average humidity: 81%
- Average sunny days: 12 days
- Average rainfall: 38mm (2") over 15 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to St. Petersburg in September, make sure you pack a warm jacket or coat.
St. Petersburg in October
- Average temperature: 5℃ (42℉)
- Average high temperature: 7℃ (45℉)
- Average low temperature: 3℃ (38℉)
- Average humidity: 85%
- Average sunny days: 11 days
- Average rainfall: 45mm (2") over 15 days
- Average snow days: 4 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to St. Petersburg in October, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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St. Petersburg in November
- Average temperature: 1℃ (35℉)
- Average high temperature: 3℃ (37℉)
- Average low temperature: -0℃ (32℉)
- Average humidity: 88%
- Average sunny days: 9 days
- Average rainfall: 31mm (1") over 13 days
- Average snow days: 9 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to St. Petersburg in November, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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St. Petersburg in December
- Average temperature: -3℃ (27℉)
- Average high temperature: -1℃ (30℉)
- Average low temperature: -5℃ (24℉)
- Average humidity: 92%
- Average sunny days: 6 days
- Average rainfall: 37mm (1") over 8 days
- Average snow days: 20 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to St. Petersburg in December, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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