What is the current water temperature in Petersburg?

Q: What is the current water temperature in Petersburg?

As of now, in Petersburg, the water temperature is 11.94°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.

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Water temperature in Petersburg

Detailed information about the current water temperature in 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.

53.5

°F

August 16, 06:01

Trend:

decreasing

Yesterday:

53.6°F

Tomorrow:

53.3°F

Sunrise:

05:22

Sunset:

20:29

Day Length:

15 h. 7 min.

Petersburg in August

Minimum:

39.4°F

Average:

41.1°F

Maximum:

42.6°F

Sea water temperature in Petersburg today

As of now, in Petersburg, the water temperature is 53.5°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 0.9°F lower 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 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 minimum temperature for this date. The maximum temperature recorded for this date was 55.9°F on 2017, while the historical minimum was 52.9°F on 2024.

latest data

last year

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 53.2°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Petersburg

Date	Current Year actual* / forecast**	last year	10 years average
Aug 2	54.8°F	50.0°F	54.4°F
Aug 3	54.6°F	50.9°F	54.5°F
Aug 4	54.7°F	51.0°F	54.3°F
Aug 5	54.8°F	51.3°F	54.2°F
Aug 6	54.4°F	51.5°F	54.4°F
Aug 7	54.4°F	52.6°F	54.8°F
Aug 8	55.4°F	52.3°F	55.3°F
Aug 9	55.6°F	52.7°F	55.5°F
Aug 10	55.7°F	52.8°F	55.6°F
Aug 11	55.3°F	52.3°F	55.2°F
Aug 12	55.1°F	52.5°F	55.3°F
Aug 13	55.1°F	52.5°F	55.4°F
Aug 14	53.7°F	52.1°F	55.0°F
Aug 15	53.6°F	51.9°F	54.7°F
Aug 16	53.5°F	52.9°F	54.4°F
Aug 17	53.3°F	52.1°F	54.2°F
Aug 18	53.3°F	53.1°F	54.2°F
Aug 19	53.2°F	53.7°F	54.1°F
Aug 20	53.3°F	54.4°F	54.2°F
Aug 21	53.4°F	54.4°F	54.2°F
Aug 22	52.8°F	51.9°F	53.6°F
Aug 23	52.9°F	52.4°F	53.8°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 Petersburg by month

In an average year, Petersburg offers no days when the water temperature is warm enough to swim comfortably.

The warmest water in Petersburg was recorded on July 7, 2019, reaching a 60.2°F. While the coldest temperature occurred on January 13, 2023, dipping to 37.5°F. The average readings by season are 41.1°F in Winter, 43.1°F in Spring, 53.1°F in Summer, and 46.4°F in Autumn.