What is the current water temperature in St. John's?

Q: What is the current water temperature in St. John's?

As of now, in St. John's, the water temperature is 5.27°C. 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.

Canada > St. John's

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.

41.5

°F

November 30, 14:42

Trend:

stable

Yesterday:

40.0°F

Tomorrow:

41.3°F

Sunrise:

07:26

Sunset:

16:12

Day Length:

8 h. 46 min.

St. John's in December

Minimum:

32.0°F

Average:

34.0°F

Maximum:

35.3°F

Sea water temperature in St. John's today

As of now, in St. John's, the water temperature is 41.5°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 1.1°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable increase in temperature. This indicates a warming trend over the past day. 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 also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 43.3°F on 2021, while the historical minimum was 37.5°F on 2018.

latest data

last year

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 40.8°F, the minimum temperature may reach 40.3°F, and the maximum might stay at 41.3°F.

Daily water temperature in St. John's

Date	Current Year actual* / forecast**	last year	10 years average
Nov 16	42.6°F	44.0°F	43.0°F
Nov 17	41.8°F	45.0°F	42.6°F
Nov 18	43.4°F	43.8°F	42.5°F
Nov 19	42.7°F	44.8°F	42.4°F
Nov 20	42.4°F	45.1°F	42.1°F
Nov 21	42.4°F	46.1°F	42.2°F
Nov 22	41.8°F	44.6°F	41.8°F
Nov 23	41.4°F	43.8°F	41.7°F
Nov 24	42.4°F	43.4°F	41.5°F
Nov 25	42.1°F	44.9°F	41.4°F
Nov 26	42.4°F	43.8°F	41.2°F
Nov 27	42.0°F	43.1°F	41.0°F
Nov 28	41.7°F	42.9°F	40.9°F
Nov 29	40.0°F	42.3°F	40.5°F
Nov 30	41.5°F	41.0°F	40.4°F
Dec 1	41.3°F	42.3°F	40.2°F
Dec 2	41.1°F	41.9°F	40.0°F
Dec 3	41.2°F	41.8°F	40.1°F
Dec 4	40.6°F	41.4°F	39.5°F
Dec 5	40.8°F	41.7°F	39.7°F
Dec 6	40.4°F	41.7°F	39.3°F
Dec 7	40.3°F	41.3°F	39.2°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 34.7°F in Winter, 33.9°F in Spring, 51.0°F in Summer, and 49.9°F in Autumn.