St. Petersburg weather by month & the best time to visit
Russia · major coastal city · continental climate
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The best time to visit St. Petersburg is July — its sunniest month (Sunshine Score 71/100), with August and June close behind. St. Petersburg averages about 1,522 hours of sunshine a year. Daytime highs around 22°C / 72°F and roughly 88 mm of rain in July.
When is the best time to visit St. Petersburg?
For sunshine, the best time to visit St. Petersburg is July, then August and June. The dullest month is January (0/100, 45 mm of rain). The full month-by-month picture is in the table below.
How sunny is St. Petersburg?
St. Petersburg isn't a sunny place by world standards: about 1,522 hours of sunshine a year. 71 Sunshine Score points separate July (71) from January (0), so the month you pick matters. It ranks #142 of 145 destinations in Russia for annual sunshine, below the national median of 2,004 hours. The year's 724 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 0 | -5° / 23°F | -10° / 14°F | 45 mm | 0 | 0° / 32°F |
| February | 0 | -5° / 23°F | -10° / 14°F | 38 mm | 0 | 0° / 32°F |
| March | 0 | 0° / 32°F | -6° / 21°F | 40 mm | 1 | 1° / 34°F |
| April | 0 | 7° / 45°F | 0° / 32°F | 47 mm | 2 | 4° / 39°F |
| May | 44 | 15° / 59°F | 6° / 43°F | 60 mm | 4 | 12° / 54°F |
| June | 61 | 18° / 64°F | 11° / 52°F | 78 mm | 4 | 21° / 70°F |
| July | 71 | 22° / 72°F | 14° / 57°F | 88 mm | 4 | 23° / 73°F |
| August | 71 | 20° / 68°F | 13° / 55°F | 90 mm | 4 | 22° / 72°F |
| September | 45 | 15° / 59°F | 9° / 48°F | 58 mm | 2 | 19° / 66°F |
| October | 0 | 7° / 45°F | 3° / 37°F | 67 mm | 1 | 10° / 50°F |
| November | 0 | 1° / 34°F | -2° / 28°F | 59 mm | 0 | 4° / 39°F |
| December | 0 | -3° / 27°F | -7° / 19°F | 54 mm | 0 | 0° / 32°F |
Sea temperature in St. Petersburg by month
The sea off St. Petersburg is warmest in July at around 23°C / 73°F, and coolest in January at 0°C / 32°F. The water sits at a comfortable 21°C or warmer roughly 3 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
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Head-to-head
How St. Petersburg compares month by month: St. Petersburg vs Helsinki (Vantaa) · St. Petersburg vs Tallinn · St. Petersburg vs Cherepovets · St. Petersburg vs Petrozavodsk · all comparisons
St. Petersburg: questions and answers
What kind of destination is St. Petersburg?
St. Petersburg is a major coastal city in Russia with a continental climate — the sea reaches 23°C at its warmest and is swimmable (21°C+) about 3 months a year.
How many hours of sunshine does St. Petersburg get a year?
St. Petersburg gets about 1,522 hours of sunshine a year, at its best around July.
When is the best time to visit St. Petersburg?
The sunniest time to visit St. Petersburg is July, when the Sunshine Score peaks at 71/100 (with August and June close behind). Expect daytime highs around 22°C / 72°F.
What is the least sunny month in St. Petersburg?
January is the least sunny month in St. Petersburg, scoring 0/100 with about 45 mm of rain.
What is the sea temperature in St. Petersburg?
The sea in St. Petersburg ranges from about 0°C (January) to 23°C (July). Month-by-month sea temperatures are on this page.
How strong is the sun in St. Petersburg?
The typical midday UV index in St. Petersburg peaks around 4 (moderate) in May, easing to about 0 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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