Sea Temperature in Saint-Quay-Portrieux in September

Complete information on the sea temperature range in the Celtic Sea in Saint-Quay-Portrieux in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Saint-Quay-Portrieux. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Water Temperature Range in Saint-Quay-Portrieux in September

16°C

MINIMUN

18.5°C

AVERAGE

21°C

MAXIMUM

Historical Data of Water Temperature in September in Saint-Quay-Portrieux

Water Temperature Chart for Celtic Sea in Saint-Quay-Portrieux in September

Sea Temperature Table in Saint-Quay-Portrieux in September Over the Past Years

Day	2024	2023	2022	Average
Sep 1	18°C	18°C	18°C	18.0°C
Sep 2	18°C	18°C	18°C	18.0°C
Sep 3	17°C	18°C	18°C	18.0°C
Sep 4	18°C	18°C	18°C	18.3°C
Sep 5	17°C	18°C	18°C	18.0°C
Sep 6	18°C	18°C	18°C	18.3°C
Sep 7	18°C	18°C	18°C	18.3°C
Sep 8	18°C	18°C	18°C	18.3°C
Sep 9	18°C	19°C	17°C	18.0°C
Sep 10	18°C	18°C	17°C	17.8°C
Sep 11	17°C	18°C	17°C	17.8°C
Sep 12	18°C	18°C	17°C	17.8°C
Sep 13	19°C	18°C	17°C	18.0°C
Sep 14	17°C	19°C	17°C	17.5°C
Sep 15	18°C	19°C	17°C	18.0°C
Sep 16	19°C	18°C	17°C	18.0°C
Sep 17	18°C	19°C	17°C	17.8°C
Sep 18	18°C	18°C	17°C	17.5°C
Sep 19	18°C	19°C	17°C	17.8°C
Sep 20	18°C	18°C	17°C	17.5°C
Sep 21	18°C	19°C	17°C	17.8°C
Sep 22	18°C	18°C	17°C	17.8°C
Sep 23	17°C	18°C	17°C	17.5°C
Sep 24	18°C	18°C	17°C	17.8°C
Sep 25	18°C	17°C	17°C	17.3°C
Sep 26	18°C	17°C	17°C	17.5°C
Sep 27	17°C	18°C	17°C	17.3°C
Sep 28	17°C	18°C	17°C	17.5°C
Sep 29	17°C	18°C	17°C	17.3°C

Saint-Quay-Portrieux Climate and Swimming Opportunities in September

20°C

Average Day Air Temperature

13°C

Average Night Air Temperature

63 mm

Precipitation Amount per Month

10 days

Number of Rainy Days

12 hrs

Daylight
per Day

6 hrs

Sunshine
per Day

18 km/h

Average Wind Speed

83%

Average
humidity

Saint-Quay-Portrieux lies within the Brittany in France. The average daytime temperature in Saint-Quay-Portrieux in September is 20°C (67°F), while the nighttime average is 13°C (55°F). There are typically 10 rainy days during the month, with a total precipitation of 63 mm (2.5 inches). The daylight duration in September in Saint-Quay-Portrieux is 12 hours, with an average of 6 hours of sunshine per day. The average wind speed in September is 18 km/h (11 mph), and the humidity level is around 83%.

The water temperature in Saint-Quay-Portrieux in September ranges from 17°C to 18°C (63°F to 64°F). At the beginning of the month, the average temperature is around 18°C (64°F), shifting to 18°C (64°F) by mid-September and reaching 18°C (64°F) in the last ten days. Overall, the average sea temperature in Saint-Quay-Portrieux for September is 18°C (64°F). Ideal conditions for a refreshing swim, though some may still find it a bit cool.

Sea Temperature in September in Nearby Cities

Frequently Asked Questions About Water Temperatures in September in Saint-Quay-Portrieux

What is the sea temperature in Saint-Quay-Portrieux in September?

The water temperature in the Celtic Sea in Saint-Quay-Portrieux in September ranges from 17°C to 18°C (63°F to 64°F).

Is it possible to swim in the Celtic Sea in Saint-Quay-Portrieux in September?

The average sea temperature in Saint-Quay-Portrieux in September is 18°C (64°F), and the air temperature is 20°C (67°F), so ideal conditions for a refreshing swim, though some may still find it a bit cool.