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 12.36°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.

United States > Petersburg

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.

54.2

°F

July 26, 11:09

Trend:

increasing

Yesterday:

54.1°F

Tomorrow:

54.4°F

Sunrise:

04:40

Sunset:

21:16

Day Length:

16 h. 36 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 54.2°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 0.3°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 rise a bit.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 55.3°F on 2018, while the historical minimum was 50.3°F on 2024.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest values recorded on those days in the past. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 54.3°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
Jul 12	51.8°F	53.2°F	54.9°F
Jul 13	52.1°F	53.5°F	54.9°F
Jul 14	52.2°F	53.5°F	54.5°F
Jul 15	51.5°F	53.5°F	54.4°F
Jul 16	51.4°F	53.3°F	54.3°F
Jul 17	51.1°F	53.2°F	54.1°F
Jul 18	49.9°F	51.0°F	53.6°F
Jul 19	48.2°F	49.4°F	53.1°F
Jul 20	49.0°F	52.4°F	53.4°F
Jul 21	50.7°F	53.0°F	53.7°F
Jul 22	50.6°F	53.3°F	53.9°F
Jul 23	52.6°F	52.8°F	54.1°F
Jul 24	53.9°F	53.1°F	54.3°F
Jul 25	54.1°F	52.2°F	54.1°F
Jul 26	54.2°F	50.3°F	53.9°F
Jul 27	54.4°F	50.8°F	54.1°F
Jul 28	54.5°F	51.4°F	54.2°F
Jul 29	54.5°F	51.6°F	54.1°F
Jul 30	53.9°F	49.2°F	53.5°F
Jul 31	54.1°F	49.2°F	53.7°F
Aug 1	54.3°F	49.7°F	54.0°F
Aug 2	54.7°F	50.0°F	54.4°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.