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 7.86°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.

46.1

°F

November 21, 09:22

Trend:

stable

Yesterday:

45.1°F

Tomorrow:

46.0°F

Sunrise:

07:16

Sunset:

16:18

Day Length:

9 h. 2 min.

St. John's in November

Minimum:

32.0°F

Average:

34.0°F

Maximum:

35.8°F

Sea water temperature in St. John's today

As of now, in St. John's, the water temperature is 46.1°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 4.6°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 notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 43.7°F on 2022, while the historical minimum was 38.3°F on 2015.

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 45.4°F, the minimum temperature may reach 45.0°F, and the maximum might stay at 46.0°F.

Daily water temperature in St. John's

Date	Current Year actual* / forecast**	last year	10 years average
Nov 7	46.0°F	46.3°F	45.6°F
Nov 8	45.7°F	46.0°F	45.3°F
Nov 9	45.5°F	45.6°F	45.1°F
Nov 10	45.0°F	45.1°F	44.6°F
Nov 11	44.9°F	44.9°F	44.5°F
Nov 12	44.6°F	44.6°F	44.2°F
Nov 13	44.2°F	44.2°F	43.8°F
Nov 14	43.9°F	43.7°F	43.5°F
Nov 15	44.3°F	43.0°F	43.3°F
Nov 16	44.0°F	42.6°F	42.9°F
Nov 17	45.0°F	42.0°F	42.6°F
Nov 18	43.8°F	41.2°F	42.3°F
Nov 19	44.8°F	41.1°F	42.4°F
Nov 20	45.1°F	40.6°F	42.0°F
Nov 21	46.1°F	41.6°F	41.6°F
Nov 22	46.0°F	41.8°F	41.4°F
Nov 23	45.9°F	41.6°F	41.3°F
Nov 24	45.5°F	41.4°F	41.0°F
Nov 25	45.4°F	40.9°F	40.8°F
Nov 26	45.3°F	40.1°F	40.7°F
Nov 27	45.1°F	40.0°F	40.6°F
Nov 28	45.0°F	40.1°F	40.5°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 3, 2014, dipping to 32.0°F. The average readings by season are 34.5°F in Winter, 33.8°F in Spring, 51.1°F in Summer, and 49.9°F in Autumn.