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 13.53°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.

56.4

°F

August 29, 16:40

Trend:

decreasing

Yesterday:

56.6°F

Tomorrow:

56.0°F

Sunrise:

06:15

Sunset:

19:48

Day Length:

13 h. 33 min.

St. John's in September

Minimum:

32.1°F

Average:

34.4°F

Maximum:

36.2°F

Sea water temperature in St. John's today

As of now, in St. John's, the water temperature is 56.4°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 3.5°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 considerably 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 63.3°F on 2022, while the historical minimum was 57.1°F on 2017.

latest data

last year

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. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 54.8°F, the minimum temperature may reach 53.9°F, and the maximum might stay at 56.0°F.

Daily water temperature in St. John's

Date	Current Year actual* / forecast**	last year	10 years average
Aug 15	59.8°F	61.5°F	59.1°F
Aug 16	60.5°F	59.6°F	59.4°F
Aug 17	59.5°F	59.2°F	59.3°F
Aug 18	59.9°F	60.7°F	59.6°F
Aug 19	59.8°F	60.1°F	59.6°F
Aug 20	59.4°F	59.5°F	59.1°F
Aug 21	58.6°F	61.5°F	59.1°F
Aug 22	58.6°F	61.8°F	59.4°F
Aug 23	57.4°F	61.8°F	59.5°F
Aug 24	56.6°F	61.5°F	59.6°F
Aug 25	57.6°F	61.4°F	59.6°F
Aug 26	57.4°F	62.8°F	59.6°F
Aug 27	56.8°F	62.8°F	59.5°F
Aug 28	56.6°F	62.7°F	59.5°F
Aug 29	56.4°F	62.3°F	59.9°F
Aug 30	56.0°F	61.3°F	59.5°F
Aug 31	55.7°F	61.8°F	59.2°F
Sep 1	55.2°F	61.6°F	58.8°F
Sep 2	54.8°F	60.8°F	58.3°F
Sep 3	54.1°F	60.4°F	57.6°F
Sep 4	54.2°F	61.9°F	57.8°F
Sep 5	53.9°F	61.3°F	57.4°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.