What is the current water temperature in Saint Helier?

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

As of now, in Saint Helier, the water temperature is 15.16°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 Helier

Water temperature in Saint Helier

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

59.3

°F

June 8, 03:03

Trend:

increasing

Yesterday:

59.3°F

Tomorrow:

59.5°F

Sunrise:

05:04

Sunset:

21:11

Day Length:

16 h. 7 min.

Saint Helier in June

Minimum:

48.9°F

Average:

50.6°F

Maximum:

52.4°F

Sea water temperature in Saint Helier today

As of now, in Saint Helier, the water temperature is 59.3°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 1.1°F higher 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

Today's reading indicates a minor change compared to the average water temperature of the last two weeks, but the overall trend remains steady. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 59.3°F on 2024, while the historical minimum was 56.9°F on 2021.

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 59.8°F, with minimum temperature starting at 59.5°F, while the maximum might reach 60.4°F.

Daily water temperature in Saint Helier

Date	Current Year actual* / forecast**	last year	10 years average
May 25	58.8°F	57.3°F	56.6°F
May 26	59.0°F	57.4°F	56.7°F
May 27	58.9°F	57.3°F	56.8°F
May 28	59.7°F	57.3°F	57.1°F
May 29	59.5°F	57.6°F	57.2°F
May 30	59.3°F	58.9°F	57.2°F
May 31	58.8°F	58.6°F	57.3°F
Jun 1	59.6°F	59.1°F	57.8°F
Jun 2	59.6°F	59.1°F	57.7°F
Jun 3	59.8°F	58.9°F	58.0°F
Jun 4	59.5°F	58.4°F	58.0°F
Jun 5	59.4°F	58.7°F	58.1°F
Jun 6	59.1°F	58.3°F	58.2°F
Jun 7	59.3°F	58.6°F	58.2°F
Jun 8	59.3°F	58.7°F	58.2°F
Jun 9	59.5°F	58.9°F	58.4°F
Jun 10	59.7°F	59.0°F	58.6°F
Jun 11	59.6°F	59.8°F	58.5°F
Jun 12	59.7°F	60.7°F	58.6°F
Jun 13	59.8°F	60.3°F	58.7°F
Jun 14	60.1°F	60.3°F	59.0°F
Jun 15	60.4°F	60.5°F	59.3°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 Helier by month

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

The warmest water in Saint Helier was recorded on September 10, 2023, reaching a 68.2°F. While the coldest temperature occurred on March 5, 2018, dipping to 44.7°F. The average readings by season are 49.9°F in Winter, 51.5°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	57.2°F	27mi
Saint-Malo	60.5°F	38mi
Cherbourg-Octeville	58.1°F	38mi

* current water temperature in this city

** straight line distance from Saint Helier