Saint-Jean-de-Monts Water Temperature

Saint-Jean-de-Monts is a village close to Bay of Biscay. August is the month with the highest water temperature at 68.5°F / 20.3°C.
The coldest month is March with an average water temperature of 51.1°F / 10.6°C.
June is the driest at 0in / 0mm and January the wettest month with 2.9in / 72.9mm.
With an average air temperature of 66.7°F / 19.3°C, July is the warmest month in a year. February is the coldest with 44.1°F / 6.7°C average air temperature.
The Climate is described as temperate oceanic climate with warm summer. Best time to Visit would be in June, July, August, September.

Saint-Jean-de-Monts Summary

Description Value
Current water temperature /
Warmest Month Water Temperature: August with 20.3°C / 68.5°F
Coldest Month Water Temperature: March with 10.6°C / 51.1°F
Warmest Month Air Temperature: July with 19.3°C / 66.7°F
Coldest Month Air Temperature: February with 6.7°C / 44.1°F
Wettest Month: January with 72.9mm / 2.9in
Driest Month: June with 0mm / 0in
Highest Humidity January with 85.4%
Lowest Humidity July with 72.1%
Best Time to Visit: June, July, August, September
Climate Classification temperate oceanic climate with warm summer

Saint-Jean-de-Monts water temperature by month

Bay of Biscay water temperature by month

Max. Water

Temperature (°C)

ø. Water

Temperature (°C)

Min. Water

Temperature (°C)

January

12.5 11.8 11.1

February

11.2 10.8 10.4

March

11.1 10.7 10.4

April

13.3 12.1 11.1

May

16.3 14.6 13.3

June

19.2 17.7 16.3

July

20.6 19.8 19.1

August

20.6 20.3 20

September

20.1 19.3 18.4

October

18.5 17.4 16.4

November

16.4 15.1 14

December

14 13.2 12.4

Bay of Biscay water temperature by month

Max. Water

Temperature (°F)

ø. Water

Temperature (°F)

Min. Water

Temperature (°F)

January

54.5 53.2 52

February

52.2 51.4 50.7

March

52 51.3 50.7

April

55.9 53.8 52

May

61.3 58.3 55.9

June

66.6 63.9 61.3

July

69.1 67.6 66.4

August

69.1 68.5 68

September

68.2 66.7 65.1

October

65.3 63.3 61.5

November

61.5 59.2 57.2

December

57.2 55.8 54.3
The hottest water temperature typically reached in August with around 68.5°F / 20.3°C. The coldest in March with an average water temperature of 51.1°F / 10.6°C.

Saint-Jean-de-Monts weather by month / climate table

Max.

Temperature

°C

ø.

Temperature

°C

Min.

Temperature

(°C)

Precip.

(mm)

Rainy Days

(d)

Rel. Humidity

(%)

January

9.7 7 3.6 72.9 1 85.4%

February

10.1 6.7 2.9 15.5 1 81.4%

March

13.2 8.7 4.2 3.2 3 78.8%

April

16.9 11.3 6.4 11.3 1 75.5%

May

19.2 14.3 9.5 24.3 1 75.4%

June

23.2 17.6 12.7 0 0 72.6%

July

23.7 19.3 15 7.5 1 72.1%

August

23.5 19.2 14.9 11.8 0 74.2%

September

22.8 17.4 12.3 0 0 73.6%

October

18.8 14.2 9.9 12.9 0 81%

November

15.2 10.3 6.7 50 2 83.7%

December

10.9 7.5 4 26.4 1 85.3%

Max.

Temperature

°F

ø.

Temperature

°F

Min.

Temperature

(°F)

Precip.

(in)

Rainy Days

(d)

Rel. Humidity

(%)

January

49.5 44.6 38.5 2.9 1 85.4%

February

50.2 44.1 37.2 0.6 1 81.4%

March

55.8 47.7 39.6 0.1 3 78.8%

April

62.4 52.3 43.5 0.4 1 75.5%

May

66.6 57.7 49.1 1 1 75.4%

June

73.8 63.7 54.9 0 0 72.6%

July

74.7 66.7 59 0.3 1 72.1%

August

74.3 66.6 58.8 0.5 0 74.2%

September

73 63.3 54.1 0 0 73.6%

October

65.8 57.6 49.8 0.5 0 81%

November

59.4 50.5 44.1 2 2 83.7%

December

51.6 45.5 39.2 1 1 85.3%
June is the month with the lowest rain of 0in / 0mm and January with the highest precipitation in a year with 2.9in / 72.9mm. The avg. temperature is around 66.7°F / 19.3°C, July is the month with the highest temperature. February is the coolest with 44.1°F / 6.7°C average temperature.

Activities & POI in Saint-Jean-de-Monts

Type of Activity List
Beach Plage de la Baigneuse, Plage de l'Estacade, Plage des Demoiselles, Plage des Oiseaux, Plage des Becs, Plage des Salins, Plage des Soixante Bornes
Attraction Littoral Quad, La Ferme des Pommettes
Golf Course École de Golf, Golf de Saint-Jean-de-Monts
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