What is the current water temperature in Saint John?

Q: What is the current water temperature in Saint John?

As of now, in Saint John, the water temperature is 10.6°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.

Jersey > Saint John

Water temperature in Saint John

Detailed information about the current water temperature in Saint John. 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.

51.1

°F

April 5, 14:59

Trend:

increasing

Yesterday:

50.1°F

Tomorrow:

51.3°F

Sunrise:

06:38

Sunset:

19:45

Day Length:

13 h. 7 min.

Saint John in April

Minimum:

49.0°F

Average:

50.7°F

Maximum:

53.1°F

Sea water temperature in Saint John today

As of now, in Saint John, the water temperature is 51.1°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 1.4°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 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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 51.0°F on 2017, while the historical minimum was 47.4°F on 2018.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 51.5°F, with minimum temperature starting at 51.3°F, while the maximum might reach 51.9°F.

Daily water temperature in Saint John

Date	Current Year actual* / forecast**	last year	10 years average
Mar 22	51.0°F	48.7°F	48.7°F
Mar 23	50.8°F	48.4°F	48.6°F
Mar 24	50.3°F	48.6°F	48.7°F
Mar 25	51.0°F	48.6°F	49.0°F
Mar 26	50.8°F	48.7°F	49.2°F
Mar 27	50.9°F	48.9°F	49.2°F
Mar 28	50.9°F	49.2°F	49.2°F
Mar 29	50.8°F	49.5°F	49.3°F
Mar 30	50.7°F	49.3°F	49.4°F
Mar 31	51.1°F	49.9°F	49.5°F
Apr 1	50.9°F	50.0°F	49.6°F
Apr 2	50.9°F	50.4°F	49.6°F
Apr 3	50.8°F	50.4°F	49.6°F
Apr 4	50.1°F	50.3°F	49.6°F
Apr 5	51.1°F	50.4°F	49.7°F
Apr 6	51.3°F	50.8°F	49.9°F
Apr 7	51.4°F	51.4°F	50.0°F
Apr 8	51.6°F	51.3°F	50.2°F
Apr 9	51.4°F	51.2°F	50.0°F
Apr 10	51.5°F	51.3°F	50.1°F
Apr 11	51.9°F	51.7°F	50.5°F
Apr 12	51.8°F	51.8°F	50.4°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 Saint John by month

In an average year, Saint John offers no days when the water temperature is warm enough to swim comfortably.

The warmest water in Saint John was recorded on August 14, 2022, reaching a 68.2°F. While the coldest temperature occurred on March 5, 2018, dipping to 44.8°F. The average readings by season are 49.9°F in Winter, 51.4°F in Spring, 62.7°F in Summer, and 61.2°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Saint Peter Port	51.0°F	23mi
Cherbourg-Octeville	51.3°F	36mi
Saint-Malo	51.2°F	42mi

* current water temperature in this city

** straight line distance from Saint John