What is the current water temperature in Cassis?

Q: What is the current water temperature in Cassis?

As of now, in Cassis, the water temperature is 18.77°C. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it.

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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.

65.8

°F

October 30, 12:05

Trend:

decreasing

Yesterday:

65.9°F

Tomorrow:

65.3°F

Sunrise:

07:10

Sunset:

17:33

Day Length:

10 h. 23 min.

Cassis in November

Minimum:

56.4°F

Average:

58.3°F

Maximum:

59.8°F

Sea water temperature in Cassis today

As of now, in Cassis, the water temperature is 65.8°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 1.1°F lower 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 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 68.6°F on 2022, while the historical minimum was 64.0°F on 2025.

latest data

last year

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 shows a gradual cooling trend. The average temperature is expected to be 65.0°F, the minimum temperature may reach 64.2°F, and the maximum might stay at 65.4°F.

Daily water temperature in Cassis

Date	Current Year actual* / forecast**	last year	10 years average
Oct 16	72.5°F	69.3°F	68.6°F
Oct 17	72.0°F	69.1°F	68.5°F
Oct 18	72.0°F	68.9°F	68.5°F
Oct 19	71.6°F	69.1°F	68.6°F
Oct 20	71.6°F	69.2°F	68.5°F
Oct 21	69.7°F	68.4°F	68.2°F
Oct 22	70.9°F	68.9°F	68.3°F
Oct 23	70.8°F	69.2°F	68.3°F
Oct 24	69.3°F	68.6°F	67.9°F
Oct 25	68.6°F	67.4°F	67.8°F
Oct 26	66.8°F	66.8°F	67.5°F
Oct 27	65.1°F	66.0°F	67.3°F
Oct 28	66.1°F	64.8°F	67.2°F
Oct 29	65.9°F	64.2°F	66.9°F
Oct 30	65.8°F	64.0°F	66.8°F
Oct 31	65.3°F	63.4°F	66.3°F
Nov 1	65.4°F	64.6°F	66.5°F
Nov 2	65.3°F	64.2°F	66.4°F
Nov 3	65.3°F	64.6°F	66.3°F
Nov 4	64.9°F	63.6°F	66.0°F
Nov 5	64.8°F	64.4°F	65.9°F
Nov 6	64.2°F	63.6°F	65.3°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 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 68.4°F in Autumn.