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

74.2

°F

July 16, 07:12

Trend:

increasing

Yesterday:

74.1°F

Tomorrow:

74.4°F

Sunrise:

06:28

Sunset:

21:52

Day Length:

15 h. 24 min.

La Rochelle in July

Minimum:

45.5°F

Average:

49.5°F

Maximum:

51.6°F

Sea water temperature in La Rochelle today

As of now, in La Rochelle, the water temperature is 74.2°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 4.8°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 71.3°F on 2025, while the historical minimum was 67.5°F on 2016.

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 74.9°F, with minimum temperature starting at 74.4°F, while the maximum might reach 75.1°F.

Daily water temperature in La Rochelle

Date Current Year

actual* / forecast**

last year 10 years average
Jul 2 73.0°F 73.3°F 68.6°F
Jul 3 72.7°F 72.4°F 68.6°F
Jul 4 72.4°F 71.9°F 68.8°F
Jul 5 73.0°F 71.5°F 68.9°F
Jul 6 72.7°F 71.9°F 68.9°F
Jul 7 74.5°F 69.9°F 69.0°F
Jul 8 74.3°F 69.6°F 69.4°F
Jul 9 74.9°F 68.6°F 69.6°F
Jul 10 75.4°F 69.0°F 69.9°F
Jul 11 75.5°F 69.9°F 69.9°F
Jul 12 75.8°F 70.2°F 69.8°F
Jul 13 75.4°F 70.2°F 69.9°F
Jul 14 74.7°F 69.7°F 69.7°F
Jul 15 74.1°F 70.8°F 69.3°F
Jul 16 74.2°F 71.3°F 69.4°F
Jul 17 74.4°F 71.8°F 69.6°F
Jul 18 74.7°F 71.5°F 69.9°F
Jul 19 74.9°F 70.8°F 70.1°F
Jul 20 75.1°F 71.0°F 70.4°F
Jul 21 75.1°F 70.7°F 70.3°F
Jul 22 75.0°F 70.4°F 70.3°F
Jul 23 74.8°F 70.0°F 70.0°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 June 28, 2026, reaching a 77.3°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, 55.8°F in Spring, 68.8°F in Summer, and 62.2°F in Autumn.