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 3.01°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.

37.4

°F

May 24, 02:06

Trend:

increasing

Yesterday:

37.4°F

Tomorrow:

37.7°F

Sunrise:

05:14

Sunset:

20:42

Day Length:

15 h. 28 min.

St. John's in May

Minimum:

33.0°F

Average:

35.0°F

Maximum:

36.9°F

Sea water temperature in St. John's today

As of now, in St. John's, the water temperature is 37.4°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 0.8°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 rise a bit.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. 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 42.8°F on 2021, while the historical minimum was 34.6°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. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 37.6°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
May 10	36.4°F	35.8°F	35.4°F
May 11	36.5°F	35.9°F	35.5°F
May 12	36.6°F	36.1°F	35.6°F
May 13	36.1°F	36.3°F	35.9°F
May 14	35.8°F	36.4°F	36.0°F
May 15	36.0°F	35.7°F	36.1°F
May 16	37.3°F	35.6°F	36.4°F
May 17	37.3°F	35.4°F	36.6°F
May 18	38.3°F	35.9°F	36.9°F
May 19	36.8°F	37.5°F	36.8°F
May 20	36.5°F	36.9°F	37.1°F
May 21	36.4°F	37.9°F	37.2°F
May 22	36.4°F	37.5°F	37.7°F
May 23	37.4°F	40.0°F	38.2°F
May 24	37.4°F	40.0°F	38.2°F
May 25	37.7°F	40.9°F	38.5°F
May 26	37.6°F	40.9°F	38.4°F
May 27	37.6°F	39.9°F	38.4°F
May 28	37.4°F	39.3°F	38.2°F
May 29	37.3°F	39.3°F	38.1°F
May 30	37.6°F	39.6°F	38.4°F
May 31	38.0°F	39.5°F	38.8°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, 50.9°F in Summer, and 49.9°F in Autumn.