All data are in degrees Fahrenheit

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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

68.0

°F

July 28, 02:40

Trend:

decreasing

Yesterday:

68.2°F

Tomorrow:

67.9°F

Sunrise:

04:30

Sunset:

21:40

Day Length:

17 h. 10 min.

Saint Petersburg in August

Minimum:

32.0°F

Average:

32.1°F

Maximum:

33.0°F

Sea water temperature in Saint Petersburg today

As of now, in Saint Petersburg, the water temperature is 68.0°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 0.5°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 73.5°F on 2025, while the historical minimum was 62.7°F on 2022.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 67.7°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Saint Petersburg

Date Current Year

actual* / forecast**

last year 10 years average
Jul 14 67.2°F 65.8°F 65.3°F
Jul 15 68.4°F 67.6°F 65.7°F
Jul 16 68.7°F 67.1°F 65.9°F
Jul 17 67.7°F 66.0°F 65.9°F
Jul 18 67.2°F 66.5°F 65.9°F
Jul 19 67.8°F 65.4°F 66.0°F
Jul 20 67.9°F 67.7°F 66.1°F
Jul 21 67.8°F 68.8°F 66.5°F
Jul 22 67.8°F 68.1°F 66.3°F
Jul 23 67.3°F 68.5°F 66.3°F
Jul 24 67.4°F 69.2°F 66.2°F
Jul 25 67.2°F 70.9°F 66.8°F
Jul 26 68.5°F 72.1°F 67.2°F
Jul 27 68.2°F 72.1°F 67.6°F
Jul 28 68.0°F 73.5°F 67.4°F
Jul 29 67.9°F 73.4°F 67.3°F
Jul 30 67.9°F 72.0°F 67.4°F
Jul 31 68.1°F 73.4°F 67.6°F
Aug 1 67.8°F 72.1°F 67.3°F
Aug 2 68.0°F 71.9°F 67.5°F
Aug 3 66.9°F 67.3°F 66.4°F
Aug 4 67.1°F 66.9°F 66.5°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 47.2°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Kalininskiy 68.1°F 5mi
Lomonosov 67.7°F 19mi
Zelenogorsk 69.7°F 28mi

* current water temperature in this city

** straight line distance from Saint Petersburg