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

47.2

°F

November 6, 13:17

Trend:

decreasing

Yesterday:

48.3°F

Tomorrow:

46.8°F

Sunrise:

06:52

Sunset:

16:36

Day Length:

9 h. 44 min.

St. John's in November

Minimum:

32.0°F

Average:

34.3°F

Maximum:

35.8°F

Sea water temperature in St. John's today

As of now, in St. John's, the water temperature is 47.2°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 1.2°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 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 also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 49.9°F on 2022, while the historical minimum was 43.8°F on 2015.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 45.8°F, the minimum temperature may reach 45.0°F, and the maximum might stay at 46.8°F.

Daily water temperature in St. John's

Date Current Year

actual* / forecast**

last year 10 years average
Oct 23 47.0°F 52.4°F 49.1°F
Oct 24 48.1°F 52.0°F 49.1°F
Oct 25 47.5°F 52.2°F 49.0°F
Oct 26 48.9°F 54.0°F 48.9°F
Oct 27 48.9°F 51.7°F 48.6°F
Oct 28 48.6°F 51.7°F 48.3°F
Oct 29 48.6°F 51.3°F 48.0°F
Oct 30 48.8°F 51.2°F 47.7°F
Oct 31 47.4°F 50.6°F 47.4°F
Nov 1 48.1°F 50.9°F 47.3°F
Nov 2 47.4°F 50.2°F 47.2°F
Nov 3 47.9°F 49.6°F 47.1°F
Nov 4 48.7°F 47.8°F 46.9°F
Nov 5 48.3°F 48.2°F 46.7°F
Nov 6 47.2°F 46.5°F 46.0°F
Nov 7 46.8°F 46.0°F 45.6°F
Nov 8 46.4°F 45.7°F 45.2°F
Nov 9 46.1°F 45.4°F 44.9°F
Nov 10 45.7°F 45.1°F 44.6°F
Nov 11 45.6°F 44.9°F 44.4°F
Nov 12 45.4°F 44.7°F 44.2°F
Nov 13 45.0°F 44.3°F 43.8°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 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 34.7°F in Winter, 33.9°F in Spring, 51.0°F in Summer, and 49.9°F in Autumn.