All data are in degrees Fahrenheit

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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

63.3

°F

September 21, 16:03

Trend:

increasing

Yesterday:

63.2°F

Tomorrow:

63.5°F

Sunrise:

07:58

Sunset:

20:14

Day Length:

12 h. 16 min.

Lorient in September

Minimum:

49.1°F

Average:

50.5°F

Maximum:

53.3°F

Sea water temperature in Lorient today

As of now, in Lorient, the water temperature is 63.3°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 0.6°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 water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 64.9°F on 2020, while the historical minimum was 59.7°F on 2017.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the maximum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 63.3°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Lorient

Date Current Year

actual* / forecast**

last year 10 years average
Sep 7 66.2°F 62.9°F 64.4°F
Sep 8 66.6°F 64.1°F 64.4°F
Sep 9 66.4°F 65.0°F 64.5°F
Sep 10 65.9°F 64.8°F 64.4°F
Sep 11 65.5°F 63.9°F 64.1°F
Sep 12 65.5°F 63.7°F 64.1°F
Sep 13 65.1°F 63.6°F 63.8°F
Sep 14 65.3°F 63.4°F 63.6°F
Sep 15 65.7°F 63.2°F 63.4°F
Sep 16 65.4°F 63.5°F 63.4°F
Sep 17 65.0°F 63.4°F 63.2°F
Sep 18 63.9°F 63.3°F 63.2°F
Sep 19 62.9°F 62.7°F 62.9°F
Sep 20 63.2°F 62.6°F 62.8°F
Sep 21 63.3°F 63.1°F 62.6°F
Sep 22 63.5°F 63.7°F 62.9°F
Sep 23 63.3°F 63.5°F 62.7°F
Sep 24 63.2°F 63.1°F 62.6°F
Sep 25 63.4°F 62.8°F 62.8°F
Sep 26 63.2°F 62.3°F 62.5°F
Sep 27 63.2°F 62.4°F 62.5°F
Sep 28 63.0°F 62.5°F 62.3°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 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 13, 2026, reaching a 71.9°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, 54.0°F in Spring, 63.8°F in Summer, and 60.2°F in Autumn.