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 10.84°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.

51.5

°F

July 5, 19:56

Trend:

increasing

Yesterday:

51.0°F

Tomorrow:

51.9°F

Sunrise:

04:08

Sunset:

21:44

Day Length:

17 h. 36 min.

Petersburg in July

Minimum:

39.2°F

Average:

41.4°F

Maximum:

43.2°F

Sea water temperature in Petersburg today

As of now, in Petersburg, the water temperature is 51.5°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 2.7°F lower 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 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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 58.8°F on 2019, while the historical minimum was 51.5°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. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 52.2°F, with minimum temperature starting at 51.9°F, while the maximum might reach 52.5°F.

Daily water temperature in Petersburg

Date	Current Year actual* / forecast**	last year	10 years average
Jun 21	48.1°F	54.2°F	51.7°F
Jun 22	49.0°F	54.0°F	52.0°F
Jun 23	50.4°F	53.7°F	52.1°F
Jun 24	50.7°F	53.6°F	52.3°F
Jun 25	49.3°F	53.4°F	52.3°F
Jun 26	49.8°F	53.3°F	52.6°F
Jun 27	49.8°F	52.5°F	52.5°F
Jun 28	50.0°F	54.1°F	52.8°F
Jun 29	50.3°F	53.9°F	53.4°F
Jun 30	50.6°F	50.4°F	53.5°F
Jul 1	50.8°F	50.2°F	53.6°F
Jul 2	50.5°F	50.8°F	53.7°F
Jul 3	50.8°F	50.7°F	53.8°F
Jul 4	51.0°F	51.5°F	53.7°F
Jul 5	51.5°F	51.5°F	54.2°F
Jul 6	51.9°F	52.5°F	54.6°F
Jul 7	52.0°F	52.3°F	54.7°F
Jul 8	51.9°F	52.1°F	54.6°F
Jul 9	52.1°F	51.9°F	54.9°F
Jul 10	52.4°F	52.6°F	55.1°F
Jul 11	52.3°F	52.8°F	55.0°F
Jul 12	52.5°F	53.2°F	55.2°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, 53.2°F in Summer, and 46.4°F in Autumn.