What is the current water temperature in Saint Petersburg?

Q: What is the current water temperature in Saint Petersburg?

As of now, in Saint Petersburg, the water temperature is 8.9°C. 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.

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.

48.0

°F

October 17, 08:08

Trend:

stable

Yesterday:

47.8°F

Tomorrow:

47.5°F

Sunrise:

07:42

Sunset:

17:45

Day Length:

10 h. 3 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 48.0°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 1.8°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 49.7°F on 2020, while the historical minimum was 41.7°F on 2025.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 46.4°F, the minimum temperature may reach 45.6°F, and the maximum might stay at 47.5°F.

Daily water temperature in Saint Petersburg

Date	Current Year actual* / forecast**	last year	10 years average
Oct 3	55.3°F	47.3°F	52.5°F
Oct 4	55.2°F	45.7°F	52.1°F
Oct 5	53.4°F	43.4°F	50.3°F
Oct 6	53.5°F	44.3°F	49.4°F
Oct 7	53.2°F	43.9°F	49.2°F
Oct 8	53.0°F	46.5°F	49.1°F
Oct 9	52.6°F	46.7°F	48.9°F
Oct 10	52.0°F	46.9°F	48.4°F
Oct 11	51.7°F	46.4°F	48.1°F
Oct 12	51.2°F	45.0°F	47.3°F
Oct 13	51.5°F	45.4°F	47.0°F
Oct 14	49.6°F	45.4°F	46.5°F
Oct 15	49.5°F	45.4°F	46.5°F
Oct 16	47.8°F	45.6°F	46.0°F
Oct 17	48.0°F	41.7°F	46.2°F
Oct 18	47.5°F	41.6°F	45.8°F
Oct 19	47.2°F	40.5°F	45.4°F
Oct 20	46.6°F	41.1°F	44.9°F
Oct 21	46.4°F	41.3°F	44.7°F
Oct 22	46.0°F	39.3°F	44.2°F
Oct 23	45.8°F	39.8°F	44.0°F
Oct 24	45.6°F	40.1°F	43.8°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

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	48.1°F	5mi
Lomonosov	49.5°F	19mi
Zelenogorsk	52.2°F	28mi

* current water temperature in this city

** straight line distance from Saint Petersburg