Rimouski — Water Temperature in August

Water Temperature Range

6°C

minimum

12°C

average

14°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	2026	2025	2024	2023
AUG 1	-	11°C	11°C	12°C
AUG 2	11°C	12°C	11°C	12°C
AUG 3	10°C	12°C	11°C	13°C
AUG 4	11°C	12°C	11°C	13°C
AUG 5	10°C	12°C	11°C	12°C
AUG 6	10°C	13°C	12°C	13°C
AUG 7	9°C	13°C	12°C	12°C
AUG 8	9°C	12°C	12°C	12°C
AUG 9	11°C	12°C	11°C	12°C
AUG 10	10°C	12°C	12°C	12°C
AUG 11	11°C	12°C	11°C	12°C
AUG 12	11°C	12°C	12°C	12°C
AUG 13	10°C	11°C	11°C	12°C
AUG 14	11°C	12°C	11°C	13°C
AUG 15	12°C	12°C	11°C	13°C
AUG 16	11°C	12°C	11°C	13°C
AUG 17	11°C	12°C	12°C	14°C
AUG 18	10°C	13°C	12°C	14°C
AUG 19	10°C	12°C	11°C	13°C
AUG 20	10°C	12°C	11°C	13°C
AUG 21	11°C	12°C	11°C	14°C
AUG 22	11°C	12°C	11°C	14°C
AUG 23	10°C	12°C	11°C	13°C
AUG 24	11°C	12°C	11°C	13°C
AUG 25	11°C	12°C	12°C	13°C
AUG 26	11°C	11°C	11°C	12°C
AUG 27	11°C	11°C	11°C	13°C
AUG 28	12°C	11°C	11°C	13°C
AUG 29	11°C	11°C	11°C	12°C
AUG 30	11°C	11°C	11°C	13°C
AUG 31	12°C	11°C	10°C	12°C

August: Climate and Swimming Opportunities

Average Night Air Temperature

24°C

Average Day Air Temperature

32°C

Precipitation Amount per Month

135 mm

Number of Rainy Days

Daylight per Day

13 hrs

Sunshine per Day

8 hrs

Average Wind Speed

16 km/h

Average Humidity

80%

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.