Sea Temperature in Groix in September

Complete information on the sea temperature range in the Bay of Biscay in Groix in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Groix. 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 Groix in September

59°F

MINIMUN

64°F

AVERAGE

68°F

MAXIMUM

Historical Data of Water Temperature in September in Groix

Water Temperature Chart for Bay of Biscay in Groix in September

Sea Temperature Table in Groix in September Over the Past Years

Day	2024	2023	2022	Average
Sep 1	64°C	64°C	64°C	64°C
Sep 2	64°C	63°C	64°C	64°C
Sep 3	64°C	59°C	64°C	63°C
Sep 4	66°C	64°C	64°C	65°C
Sep 5	66°C	63°C	64°C	64°C
Sep 6	66°C	64°C	63°C	64°C
Sep 7	66°C	64°C	63°C	64°C
Sep 8	66°C	59°C	64°C	64°C
Sep 9	64°C	64°C	63°C	64°C
Sep 10	64°C	59°C	63°C	63°C
Sep 11	64°C	61°C	61°C	62°C
Sep 12	64°C	64°C	61°C	63°C
Sep 13	64°C	64°C	61°C	63°C
Sep 14	66°C	66°C	61°C	64°C
Sep 15	66°C	66°C	59°C	63°C
Sep 16	64°C	63°C	61°C	62°C
Sep 17	66°C	61°C	61°C	62°C
Sep 18	66°C	64°C	61°C	63°C
Sep 19	66°C	61°C	61°C	62°C
Sep 20	66°C	61°C	59°C	62°C
Sep 21	64°C	63°C	61°C	62°C
Sep 22	64°C	63°C	61°C	62°C
Sep 23	64°C	61°C	61°C	62°C
Sep 24	66°C	63°C	61°C	63°C
Sep 25	64°C	63°C	61°C	62°C
Sep 26	64°C	63°C	61°C	62°C
Sep 27	64°C	66°C	61°C	63°C
Sep 28	64°C	66°C	61°C	63°C
Sep 29	63°C	66°C	61°C	63°C

Groix Climate and Swimming Opportunities in September

68°F

Average Day Air Temperature

57°F

Average Night Air Temperature

2 in

Precipitation Amount per Month

10 days

Number of Rainy Days

12 hrs

Daylight
per Day

6 hrs

Sunshine
per Day

10 mph

Average Wind Speed

81%

Average
humidity

Groix lies within the Brittany in France. The average daytime temperature in Groix in September is 20°C (67°F), while the nighttime average is 14°C (56°F). There are typically 10 rainy days during the month, with a total precipitation of 59 mm (2.3 inches). The daylight duration in September in Groix is 12 hours, with an average of 6 hours of sunshine per day. The average wind speed in September is 17 km/h (11 mph), and the humidity level is around 81%.

The water temperature in Groix in September ranges from 16°C to 18°C (61°F to 64°F). At the beginning of the month, the average temperature is around 18°C (64°F), shifting to 17°C (63°F) by mid-September and reaching 17°C (63°F) in the last ten days. Overall, the average sea temperature in Groix for September is 17°C (63°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 Groix

What is the sea temperature in Groix in September?

The water temperature in the Bay of Biscay in Groix in September ranges from 16°C to 18°C (61°F to 64°F).

Is it possible to swim in the Bay of Biscay in Groix in September?

The average sea temperature in Groix in September is 17°C (63°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.