All data are in degrees Fahrenheit

en

Water temperature in Lorient

Detailed information about the current water temperature in Lorient. 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.
Sea temperature in Lorient now

56.1

°F

April 18, 05:05

Trend:

increasing

Yesterday:

55.8°F

Tomorrow:

56.2°F

Sunrise:

07:20

Sunset:

21:07

Day Length:

13 h. 47 min.

Lorient in April

Minimum:

49.3°F

Average:

51.4°F

Maximum:

54.5°F

Sea water temperature in Lorient today

As of now, in Lorient, the water temperature is 56.1°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 2.2°F higher 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 stay about the same.

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 56.1°F on 2025, while the historical minimum was 52.2°F on 2019.

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 57.0°F, with minimum temperature starting at 56.2°F, while the maximum might reach 57.6°F.

Daily water temperature in Lorient

Date Current Year

actual* / forecast**

last year 10 years average
Apr 4 53.9°F 53.1°F 51.9°F
Apr 5 54.1°F 52.5°F 51.9°F
Apr 6 54.0°F 53.3°F 52.1°F
Apr 7 55.4°F 54.2°F 52.4°F
Apr 8 54.8°F 54.5°F 52.5°F
Apr 9 55.8°F 55.2°F 52.6°F
Apr 10 55.5°F 55.1°F 53.0°F
Apr 11 55.1°F 55.1°F 53.1°F
Apr 12 54.8°F 55.5°F 53.2°F
Apr 13 54.4°F 55.4°F 53.1°F
Apr 14 55.3°F 55.7°F 53.5°F
Apr 15 55.3°F 56.6°F 53.7°F
Apr 16 55.2°F 55.9°F 53.9°F
Apr 17 55.8°F 55.4°F 53.7°F
Apr 18 56.1°F 56.1°F 53.9°F
Apr 19 56.2°F 55.9°F 54.0°F
Apr 20 56.5°F 56.8°F 54.4°F
Apr 21 56.8°F 56.6°F 54.6°F
Apr 22 57.2°F 56.7°F 55.0°F
Apr 23 57.5°F 57.6°F 55.3°F
Apr 24 57.5°F 57.7°F 55.3°F
Apr 25 57.6°F 57.2°F 55.4°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 Lorient by month

In an average year, Lorient offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Lorient was recorded on July 19, 2022, reaching a 68.9°F. While the coldest temperature occurred on January 21, 2025, dipping to 44.8°F. The average readings by season are 50.8°F in Winter, 53.9°F in Spring, 63.5°F in Summer, and 60.2°F in Autumn.