Climate & archive — Saint Petersburg 📅
Actual day-by-day weather, records, monthly climate and “on this day before”.
🔎 Weather for a date or period
📆 On this day before
🏆 Hottest and coldest day in Saint Petersburg (over the full observation series)
🗓 Monthly climate in Saint Petersburg (10-year normals)
| Month | Day | Night | Precip |
|---|---|---|---|
| January | -3° | -8° | 43 mm |
| February | -2° | -6° | 43 mm |
| March | +3° | -4° | 39 mm |
| April | +9° | 0° | 54 mm |
| May | +15° | +6° | 46 mm |
| June | +21° | +12° | 57 mm |
| July | +22° | +14° | 97 mm |
| August | +21° | +14° | 100 mm |
| September | +16° | +10° | 56 mm |
| October | +9° | +4° | 65 mm |
| November | +3° | -1° | 51 mm |
| December | -1° | -4° | 50 mm |
🕰 Weather in Saint Petersburg September 9 in past years
📒 For school and home
FAQ about the weather archive in Saint Petersburg ❓
What was the weather in Saint Petersburg on a specific date?
Pick a date or range in the form above — we show actual day-by-day weather (ERA5 reanalysis, up to a year back). For today’s date in past years see “On this day before”.
Hottest and coldest day in the history in Saint Petersburg?
Heat record — +36° (June 23, 2021), cold record — -40° (January 12, 1987). Observations over the full available series.
What's the typical weather in Saint Petersburg in September?
On average +16° by day, +10° at night, precipitation about 56 mm (ERA5 climate normal).
Since what year is the weather archive in Saint Petersburg kept?
Climate normals and records come from the ERA5 reanalysis. Actual day-by-day weather is available for the last year.
Climate and weather archive in Saint Petersburg
Monthly climate normals in Saint Petersburg (average day and night temperatures, precipitation) are computed from the ERA5 reanalysis. The observation archive accrues from launch. Data: Open-Meteo (ERA5).