Carleton-sur-Mer — Water Temperature in September

Water Temperature Range

6°C

minimum

14°C

average

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

September: Climate and Swimming Opportunities

Average Night Air Temperature

24°C

Average Day Air Temperature

31°C

Precipitation Amount per Month

141 mm

Number of Rainy Days

Daylight per Day

12 hrs

Sunshine per Day

7 hrs

Average Wind Speed

14 km/h

Average Humidity

81%

With such a ratio between the average monthly temperatures of water and air, swimming feels very cold and is only for cold-water enthusiasts. Most people will prefer just a brief splash, because warming up afterward can take time.