Cap Fréhel — Water Temperature in September

Water Temperature Range

16°C

minimum

18°C

average

21°C

maximum

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Water Temperature Chart for Month

The chart shows the average daily water temperature for each day of the month based on historical data.

Table of Water Temperatures by Day of the Month for Previous Years

Day	2025	2024	2023	2022
SEP 1	18°C	19°C	17°C	18°C
SEP 2	18°C	19°C	18°C	18°C
SEP 3	19°C	18°C	18°C	19°C
SEP 4	19°C	19°C	18°C	19°C
SEP 5	18°C	19°C	18°C	19°C
SEP 6	19°C	19°C	18°C	18°C
SEP 7	18°C	18°C	18°C	18°C
SEP 8	18°C	18°C	18°C	18°C
SEP 9	19°C	19°C	19°C	18°C
SEP 10	18°C	19°C	18°C	18°C
SEP 11	19°C	19°C	18°C	19°C
SEP 12	19°C	19°C	18°C	18°C
SEP 13	19°C	19°C	18°C	19°C
SEP 14	19°C	19°C	18°C	19°C
SEP 15	19°C	19°C	18°C	19°C
SEP 16	19°C	18°C	18°C	18°C
SEP 17	18°C	17°C	18°C	18°C
SEP 18	18°C	17°C	18°C	18°C
SEP 19	18°C	17°C	18°C	19°C
SEP 20	19°C	17°C	18°C	19°C
SEP 21	18°C	17°C	18°C	19°C
SEP 22	19°C	18°C	19°C	19°C
SEP 23	18°C	18°C	18°C	18°C
SEP 24	19°C	18°C	19°C	18°C
SEP 25	18°C	18°C	19°C	17°C
SEP 26	18°C	18°C	18°C	18°C
SEP 27	18°C	18°C	18°C	17°C
SEP 28	18°C	18°C	18°C	18°C
SEP 29	18°C	17°C	18°C	18°C
SEP 30	18°C	17°C	18°C	18°C

September: Climate and Swimming Opportunities

Average Night Air Temperature

13°C

Average Day Air Temperature

20°C

Precipitation Amount per Month

55 mm

Number of Rainy Days

Daylight per Day

12 hrs

Sunshine per Day

6 hrs

Average Wind Speed

19 km/h

Average Humidity

80%

At such water and air temperatures, swimming feels cool and invigorating. It’s comfortable for a quick dip, and you’ll feel fine as long as you warm up soon after.