Sea Temperature in Saint-Jean-de-Monts in September

Complete information on the sea temperature range in the Atlantic Ocean in Saint-Jean-de-Monts in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Saint-Jean-de-Monts. 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-Jean-de-Monts in September

15°C

MINIMUN

18.5°C

AVERAGE

22°C

MAXIMUM

Historical Data of Water Temperature in September in Saint-Jean-de-Monts

Water Temperature Chart for Atlantic Ocean in Saint-Jean-de-Monts in September

Sea Temperature Table in Saint-Jean-de-Monts in September Over the Past Years

Day	2024	2023	2022	Average
Sep 1	19°C	17°C	20°C	18.5°C
Sep 2	19°C	21°C	20°C	19.5°C
Sep 3	18°C	17°C	19°C	18.3°C
Sep 4	19°C	21°C	19°C	19.3°C
Sep 5	19°C	18°C	19°C	18.5°C
Sep 6	19°C	21°C	19°C	19.3°C
Sep 7	19°C	19°C	19°C	18.5°C
Sep 8	20°C	21°C	19°C	19.5°C
Sep 9	19°C	21°C	19°C	19.0°C
Sep 10	19°C	20°C	19°C	18.8°C
Sep 11	20°C	21°C	18°C	19.0°C
Sep 12	20°C	19°C	18°C	18.5°C
Sep 13	20°C	18°C	17°C	18.0°C
Sep 14	20°C	20°C	17°C	18.5°C
Sep 15	19°C	20°C	17°C	18.0°C
Sep 16	19°C	19°C	17°C	17.8°C
Sep 17	19°C	18°C	17°C	17.5°C
Sep 18	19°C	20°C	17°C	18.0°C
Sep 19	19°C	21°C	17°C	18.5°C
Sep 20	18°C	19°C	17°C	17.8°C
Sep 21	18°C	19°C	17°C	17.8°C
Sep 22	18°C	18°C	17°C	17.3°C
Sep 23	19°C	17°C	17°C	17.3°C
Sep 24	18°C	20°C	17°C	17.8°C
Sep 25	19°C	17°C	17°C	17.3°C
Sep 26	18°C	19°C	17°C	17.5°C
Sep 27	18°C	17°C	17°C	17.3°C
Sep 28	18°C	20°C	17°C	18.0°C
Sep 29	18°C	19°C	18°C	17.8°C

Saint-Jean-de-Monts Climate and Swimming Opportunities in September

22°C

Average Day Air Temperature

13°C

Average Night Air Temperature

57 mm

Precipitation Amount per Month

9 days

Number of Rainy Days

12 hrs

Daylight
per Day

7 hrs

Sunshine
per Day

17 km/h

Average Wind Speed

78%

Average
humidity

Saint-Jean-de-Monts lies within the Pays de la Loire in France. The average daytime temperature in Saint-Jean-de-Monts in September is 22°C (71°F), while the nighttime average is 13°C (56°F). There are typically nine rainy days during the month, with a total precipitation of 57 mm (2.2 inches). The daylight duration in September in Saint-Jean-de-Monts is 12 hours, with an average of 7 hours of sunshine per day. The average wind speed in September is 17 km/h (11 mph), and the humidity level is around 78%.

The water temperature in Saint-Jean-de-Monts in September ranges from 17°C to 19°C (63°F to 66°F). At the beginning of the month, the average temperature is around 19°C (66°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-Jean-de-Monts for September is 18°C (64°F). Very comfortable swimming conditions. The water is fresh but not too cold, and the air temperature is pleasant.

Sea Temperature in September in Nearby Cities

Frequently Asked Questions About Water Temperatures in September in Saint-Jean-de-Monts

What is the sea temperature in Saint-Jean-de-Monts in September?

The water temperature in the Atlantic Ocean in Saint-Jean-de-Monts in September ranges from 17°C to 19°C (63°F to 66°F).

Is it possible to swim in the Atlantic Ocean in Saint-Jean-de-Monts in September?

The average sea temperature in Saint-Jean-de-Monts in September is 18°C (64°F), and the air temperature is 22°C (71°F), so very comfortable swimming conditions. The water is fresh but not too cold, and the air temperature is pleasant.