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 2.88°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.

37.2

°F

May 25, 15:11

Trend:

stable

Yesterday:

36.7°F

Tomorrow:

37.0°F

Sunrise:

05:13

Sunset:

20:43

Day Length:

15 h. 30 min.

St. John's in June

Minimum:

33.2°F

Average:

35.0°F

Maximum:

36.6°F

Sea water temperature in St. John's today

As of now, in St. John's, the water temperature is 37.2°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 1.4°F lower than the average recorded on this particular day in recent years. Since yesterday, there was a slight 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 notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 40.9°F on 2016, while the historical minimum was 36.0°F on 2017.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 37.0°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 11	36.2°F	36.6°F	35.7°F
May 12	35.0°F	36.6°F	35.6°F
May 13	35.0°F	36.1°F	35.9°F
May 14	34.5°F	35.8°F	35.9°F
May 15	36.3°F	36.0°F	36.1°F
May 16	35.9°F	37.3°F	36.3°F
May 17	36.9°F	37.3°F	36.6°F
May 18	36.3°F	38.3°F	36.8°F
May 19	36.8°F	36.8°F	36.8°F
May 20	36.1°F	36.5°F	37.0°F
May 21	35.7°F	36.4°F	37.1°F
May 22	36.6°F	36.4°F	37.5°F
May 23	36.5°F	37.4°F	38.0°F
May 24	36.7°F	38.4°F	38.2°F
May 25	37.2°F	38.5°F	38.6°F
May 26	37.0°F	38.5°F	38.5°F
May 27	37.0°F	38.3°F	38.4°F
May 28	36.7°F	37.9°F	38.1°F
May 29	36.5°F	37.0°F	37.9°F
May 30	36.9°F	38.1°F	38.3°F
May 31	37.3°F	38.6°F	38.7°F
Jun 1	37.6°F	38.0°F	39.0°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.