All data are in degrees Fahrenheit

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Water temperature in St. John's

Detailed information about the current water temperature in St. John's. 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 St. John's now

32.0

°F

February 18, 07:51

Trend:

stable

Yesterday:

32.0°F

Tomorrow:

31.9°F

Sunrise:

07:02

Sunset:

17:29

Day Length:

10 h. 27 min.

St. John's in February

Minimum:

33.1°F

Average:

35.3°F

Maximum:

37.2°F

Sea water temperature in St. John's today

As of now, in St. John's, the water temperature is 32.0°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 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 slightly 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 32.9°F on 2021, while the historical minimum was 32.0°F on 2017.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the histoorical minimum and others when it was close to the historical maximum. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 31.9°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in St. John's

Date Current Year

actual* / forecast**

last year 10 years average
Feb 4 32.5°F 33.3°F 33.0°F
Feb 5 32.4°F 32.8°F 32.9°F
Feb 6 32.0°F 33.9°F 33.0°F
Feb 7 32.0°F 33.3°F 32.9°F
Feb 8 32.0°F 32.9°F 32.7°F
Feb 9 32.0°F 33.2°F 32.7°F
Feb 10 32.4°F 32.7°F 32.6°F
Feb 11 32.2°F 32.5°F 32.5°F
Feb 12 34.4°F 32.3°F 32.7°F
Feb 13 32.3°F 32.3°F 32.5°F
Feb 14 32.2°F 32.1°F 32.4°F
Feb 15 32.3°F 32.1°F 32.3°F
Feb 16 32.2°F 32.0°F 32.3°F
Feb 17 32.0°F 32.1°F 32.2°F
Feb 18 32.0°F 32.1°F 32.3°F
Feb 19 31.9°F 32.0°F 32.2°F
Feb 20 32.0°F 32.0°F 32.3°F
Feb 21 31.9°F 32.0°F 32.2°F
Feb 22 31.9°F 32.0°F 32.2°F
Feb 23 31.9°F 32.0°F 32.2°F
Feb 24 31.8°F 32.0°F 32.1°F
Feb 25 31.9°F 32.8°F 32.2°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 St. John's by month

In an average year, St. John's offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in St. John's was recorded on August 28, 2022, reaching a 64.9°F. While the coldest temperature occurred on January 11, 2016, dipping to 32.0°F. The average readings by season are 34.8°F in Winter, 33.9°F in Spring, 51.1°F in Summer, and 50.1°F in Autumn.