All data are in degrees Fahrenheit

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Water temperature in La Rochelle

Detailed information about the current water temperature in La Rochelle. 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 La Rochelle now

56.9

°F

April 7, 14:43

Trend:

increasing

Yesterday:

55.5°F

Tomorrow:

57.1°F

Sunrise:

07:34

Sunset:

20:41

Day Length:

13 h. 7 min.

La Rochelle in April

Minimum:

45.8°F

Average:

50.1°F

Maximum:

52.2°F

Sea water temperature in La Rochelle today

As of now, in La Rochelle, the water temperature is 56.9°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 3.5°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

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 55.5°F on 2025, while the historical minimum was 51.5°F on 2018.

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 58.0°F, with minimum temperature starting at 57.1°F, while the maximum might reach 58.7°F.

Daily water temperature in La Rochelle

Date Current Year

actual* / forecast**

last year 10 years average
Mar 24 54.8°F 51.8°F 52.3°F
Mar 25 55.1°F 53.1°F 52.5°F
Mar 26 54.6°F 52.2°F 52.5°F
Mar 27 54.4°F 52.6°F 52.6°F
Mar 28 53.7°F 54.0°F 52.6°F
Mar 29 53.7°F 53.4°F 52.7°F
Mar 30 53.7°F 54.1°F 52.9°F
Mar 31 53.4°F 53.0°F 52.9°F
Apr 1 53.6°F 54.1°F 53.2°F
Apr 2 54.0°F 54.2°F 53.2°F
Apr 3 53.7°F 53.9°F 53.4°F
Apr 4 52.9°F 53.7°F 53.1°F
Apr 5 54.7°F 53.4°F 53.3°F
Apr 6 55.5°F 55.3°F 53.6°F
Apr 7 56.9°F 55.5°F 53.3°F
Apr 8 57.1°F 56.3°F 53.6°F
Apr 9 57.3°F 56.7°F 53.8°F
Apr 10 57.8°F 56.8°F 54.3°F
Apr 11 58.2°F 56.8°F 54.7°F
Apr 12 58.5°F 57.3°F 55.0°F
Apr 13 58.7°F 56.9°F 55.1°F
Apr 14 58.6°F 56.2°F 55.1°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 La Rochelle by month

In an average year, La Rochelle offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in La Rochelle was recorded on August 26, 2023, reaching a 74.4°F. While the coldest temperature occurred on January 11, 2026, dipping to 43.8°F. The average readings by season are 49.3°F in Winter, 55.6°F in Spring, 68.6°F in Summer, and 62.2°F in Autumn.