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Russian Federation > Saint Petersburg

Water temperature in Saint Petersburg

Detailed information about the current water temperature in Saint Petersburg. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Saint Petersburg now

53.8

°F

September 29, 18:17

Trend:

stable

Yesterday:

53.6°F

Tomorrow:

53.3°F

Sunrise:

06:58

Sunset:

18:39

Day Length:

11 h. 41 min.

Saint Petersburg in October

Minimum:

32.0°F

Average:

32.0°F

Maximum:

32.0°F

Sea water temperature in Saint Petersburg today

As of now, in Saint Petersburg, the water temperature is 53.8°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 2.3°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to fall a bit.

Recent sea temperature and forecast

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 54.6°F on 2024, while the historical minimum was 46.8°F on 2025.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the maximum recorded over the past years. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 52.7°F, the minimum temperature may reach 50.7°F, and the maximum might stay at 54.6°F.

Daily water temperature in Saint Petersburg

Date Current Year

actual* / forecast**

 last year 10 years average
Sep 15 57.7°F 61.4°F 58.1°F
Sep 16 57.4°F 60.4°F 57.1°F
Sep 17 57.4°F 59.6°F 56.6°F
Sep 18 57.6°F 57.5°F 55.9°F
Sep 19 57.7°F 56.6°F 55.3°F
Sep 20 57.1°F 51.9°F 54.6°F
Sep 21 56.8°F 52.4°F 54.6°F
Sep 22 55.0°F 54.2°F 54.2°F
Sep 23 56.4°F 50.6°F 54.0°F
Sep 24 56.1°F 52.3°F 54.1°F
Sep 25 55.8°F 51.7°F 53.7°F
Sep 26 54.5°F 50.0°F 53.3°F
Sep 27 54.3°F 49.6°F 53.1°F
Sep 28 53.6°F 49.7°F 52.7°F
Sep 29 53.8°F 46.8°F 51.5°F
Sep 30 53.3°F 46.6°F 51.0°F
Oct 1 52.4°F 46.7°F 50.1°F
Oct 2 50.7°F 44.0°F 48.3°F
Oct 3 54.6°F 47.3°F 52.3°F
Oct 4 54.1°F 45.7°F 51.8°F
Oct 5 52.3°F 43.4°F 49.9°F
Oct 6 51.4°F 44.3°F 49.0°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Saint Petersburg by month

January

February

March

April

May

June

July

August

September

October

November

December

In an average year, Saint Petersburg offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Saint Petersburg was recorded on July 17, 2021, reaching a 76.5°F. While the coldest temperature occurred on January 2, 2016, dipping to 32.0°F. The average readings by season are 32.7°F in Winter, 39.1°F in Spring, 63.1°F in Summer, and 47.3°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Kalininskiy 54.1°F 5mi
Lomonosov 55.7°F 19mi
Zelenogorsk 56.8°F 28mi

* current water temperature in this city

** straight line distance from Saint Petersburg