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 4.68°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.

40.4

°F

January 21, 15:42

Trend:

increasing

Yesterday:

40.3°F

Tomorrow:

40.5°F

Sunrise:

08:10

Sunset:

15:58

Day Length:

7 h. 48 min.

Petersburg in January

Minimum:

38.1°F

Average:

41.3°F

Maximum:

43.3°F

Sea water temperature in Petersburg today

As of now, in Petersburg, the water temperature is 40.4°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 0.2°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 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 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 42.8°F on 2015, while the historical minimum was 38.9°F on 2023.

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 40.6°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
Jan 7	40.0°F	41.6°F	41.4°F
Jan 8	40.0°F	41.1°F	41.1°F
Jan 9	40.1°F	41.0°F	41.0°F
Jan 10	40.1°F	41.0°F	40.8°F
Jan 11	40.2°F	41.0°F	40.8°F
Jan 12	40.2°F	40.9°F	40.7°F
Jan 13	40.0°F	40.8°F	40.6°F
Jan 14	40.1°F	40.8°F	40.4°F
Jan 15	40.2°F	40.8°F	40.4°F
Jan 16	40.2°F	40.7°F	40.4°F
Jan 17	40.2°F	40.6°F	40.6°F
Jan 18	40.2°F	40.6°F	40.5°F
Jan 19	40.2°F	40.2°F	40.3°F
Jan 20	40.3°F	40.2°F	40.5°F
Jan 21	40.4°F	40.2°F	40.6°F
Jan 22	40.5°F	40.3°F	40.7°F
Jan 23	40.6°F	40.4°F	40.8°F
Jan 24	40.5°F	40.5°F	40.7°F
Jan 25	40.6°F	40.6°F	40.8°F
Jan 26	40.6°F	40.6°F	40.8°F
Jan 27	40.7°F	40.7°F	40.9°F
Jan 28	40.6°F	40.7°F	40.7°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 41.2°F in Winter, 43.2°F in Spring, 53.2°F in Summer, and 46.4°F in Autumn.