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

74.4

°F

September 25, 08:32

Trend:

decreasing

Yesterday:

74.6°F

Tomorrow:

73.9°F

Sunrise:

07:28

Sunset:

19:31

Day Length:

12 h. 3 min.

Cassis in October

Minimum:

56.5°F

Average:

58.4°F

Maximum:

60.0°F

Sea water temperature in Cassis today

As of now, in Cassis, the water temperature is 74.4°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 3.0°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 fall 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 74.7°F on 2020, while the historical minimum was 64.9°F on 2017.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 73.6°F, the minimum temperature may reach 73.1°F, and the maximum might stay at 74.2°F.

Daily water temperature in Cassis

Date Current Year

actual* / forecast**

last year 10 years average
Sep 11 73.8°F 72.3°F 73.6°F
Sep 12 71.7°F 70.6°F 73.0°F
Sep 13 70.8°F 69.3°F 73.0°F
Sep 14 72.1°F 69.8°F 73.2°F
Sep 15 73.9°F 68.2°F 73.1°F
Sep 16 75.7°F 68.3°F 72.6°F
Sep 17 75.5°F 67.2°F 72.6°F
Sep 18 73.6°F 68.0°F 72.4°F
Sep 19 72.1°F 69.8°F 72.2°F
Sep 20 70.5°F 71.2°F 72.0°F
Sep 21 70.6°F 73.0°F 72.1°F
Sep 22 71.9°F 73.1°F 72.3°F
Sep 23 72.8°F 72.8°F 72.2°F
Sep 24 74.6°F 72.8°F 71.7°F
Sep 25 74.4°F 71.0°F 71.5°F
Sep 26 73.9°F 69.0°F 70.9°F
Sep 27 74.2°F 68.4°F 71.2°F
Sep 28 73.8°F 66.5°F 70.9°F
Sep 29 73.5°F 67.0°F 70.5°F
Sep 30 73.4°F 68.3°F 70.4°F
Oct 1 73.2°F 69.4°F 70.2°F
Oct 2 73.1°F 69.6°F 70.1°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 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 57.
The warmest water in Cassis was recorded on August 15, 2026, reaching a 82.8°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, 72.5°F in Summer, and 68.3°F in Autumn.