All data are in degrees Fahrenheit

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Water temperature in Cassis

Detailed information about the current water temperature in Cassis. 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 Cassis now

77.2

°F

June 25, 23:49

Trend:

stable

Yesterday:

78.0°F

Tomorrow:

77.6°F

Sunrise:

05:59

Sunset:

21:22

Day Length:

15 h. 23 min.

Cassis in July

Minimum:

56.7°F

Average:

58.7°F

Maximum:

60.3°F

Sea water temperature in Cassis today

As of now, in Cassis, the water temperature is 77.2°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 5.7°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 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 76.7°F on 2025, while the historical minimum was 65.9°F on 2020.

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 histoorical minimum and others when it was close to the historical maximum. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 78.5°F, with minimum temperature starting at 77.6°F, while the maximum might reach 79.1°F.

Daily water temperature in Cassis

Date Current Year

actual* / forecast**

last year 10 years average
Jun 11 63.7°F 69.4°F 67.3°F
Jun 12 62.3°F 69.9°F 67.1°F
Jun 13 62.3°F 70.5°F 67.6°F
Jun 14 63.2°F 70.5°F 67.7°F
Jun 15 64.8°F 70.7°F 68.1°F
Jun 16 65.5°F 71.9°F 68.4°F
Jun 17 67.4°F 71.0°F 68.5°F
Jun 18 69.7°F 70.4°F 68.5°F
Jun 19 71.7°F 71.5°F 69.0°F
Jun 20 73.2°F 72.4°F 69.7°F
Jun 21 74.3°F 72.7°F 70.3°F
Jun 22 73.7°F 74.7°F 70.6°F
Jun 23 75.9°F 75.3°F 71.1°F
Jun 24 78.0°F 76.9°F 71.9°F
Jun 25 77.2°F 76.7°F 71.5°F
Jun 26 77.6°F 76.6°F 71.9°F
Jun 27 78.2°F 76.3°F 72.6°F
Jun 28 78.6°F 77.1°F 72.9°F
Jun 29 78.8°F 78.5°F 73.1°F
Jun 30 79.1°F 79.8°F 73.4°F
Jul 1 78.7°F 80.2°F 73.0°F
Jul 2 78.7°F 79.8°F 73.0°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 Cassis by month

In Cassis, August is the only month that offers comfortable swimming conditions. The amount of days when the water is warm enough is only 55.
The warmest water in Cassis was recorded on July 20, 2022, reaching a 81.6°F. While the coldest temperature occurred on March 3, 2018, dipping to 55.4°F. The average readings by season are 58.3°F in Winter, 59.1°F in Spring, 72.2°F in Summer, and 68.3°F in Autumn.