Loire-Atlantique, France
Cantabrian Sea47.24°N, 2.31°WStation FR-LOI-PLA

Plage de Sainte-Marguerite Sea Water Temperature

A temperate beach on the Cantabrian Sea, warmest around August at about 18.6°C. Today's reading, 7-day forecast, and monthly averages below.

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Water Temperature NowBuoy & Sentinel-3 SST

Plage de Sainte-Marguerite water temperature

17.6
63.7°FCool / Refreshing (16°C – 20°C)

Invigorating and crisp. Tolerable for active swimming, but chilly for prolonged casual bathing.

+0°vs Sep avgCantabrian Sea47.24°N, 2.31°W
Activity Index:SwimmingSnorkelingSurfingTypical conditions
Marine Atmosphere Grid Live Marine Feed
Coastal Air
19°C
66.4°F onshore
Wind Speed
12 km/h
Surface wind
Wave Height
0.8 m
Slight shore chop
Swell
0.6 m
Deep water swell
Wave Period
6 s
Peak interval
UV Index
—
Daily maximum
Sunrise
—
First morning light
Sunset
—
Golden hour close

7-Day Water Temperature Forecast

Open-Meteo ocean model
Today
WedSep 30
17.6°C
63.7°F
Waves: 1m
Refreshing
ThuOct 1
17.9°C
64.2°F
Waves: 0.9m
Refreshing
FriOct 2
18°C
64.4°F
Waves: 0.7m
Refreshing
SatOct 3
17.9°C
64.2°F
Waves: 0.6m
Refreshing
SunOct 4
17.6°C
63.7°F
Waves: 0.7m
Refreshing
MonOct 5
17.3°C
63.1°F
Waves: 0.9m
Refreshing
TueOct 6
17.2°C
63°F
Waves: 1m
Refreshing
Forecast cooling trend: -0.4°C over 7 days at Plage de Sainte-Marguerite.
Confidence: High

Plage de Sainte-Marguerite Monthly Water Temperature Averages

Historical monthly climatology. The warmest water in Plage de Sainte-Marguerite occurs inJune, July, August, September — peaking at18.6°C (65.5°F) in August.

Year-Round Water Temperature Curve (°C / °F)

Hover a bar for details
Current month Comfortable (20–24°C) Warm (24°C+) Cool (<20°C)
10
Jan
9
Feb
10
Mar
12
Apr
15
May
17
Jun
18
Jul
19
Aug
Current
18
Sep
16
Oct
14
Nov
11
Dec
Full 12-month data table — min / avg / max & swimming comfort
MonthMin Water TempAverage Water TempMax Water TempSwimming Comfort
January7.3°C9.7°C12.1°CVery Cold (< 16°C)
February7.5°C9.1°C10.7°CVery Cold (< 16°C)
March7.6°C9.8°C11.5°CVery Cold (< 16°C)
April10.2°C12°C15.2°CVery Cold (< 16°C)
May11.5°C14.5°C18°CVery Cold (< 16°C)
June14.9°C16.7°C18.3°CCool / Refreshing (16°C – 20°C)
July15.1°C18.3°C21.5°CCool / Refreshing (16°C – 20°C)
August16.8°C18.6°C22.2°CCool / Refreshing (16°C – 20°C)
SeptemberCurrent15.5°C17.6°C19.7°CCool / Refreshing (16°C – 20°C)
October14.6°C16.3°C19.7°CCool / Refreshing (16°C – 20°C)
November11.5°C13.8°C16.3°CVery Cold (< 16°C)
December9.6°C11.2°C12.9°CVery Cold (< 16°C)

Swimming FAQs for Plage de Sainte-Marguerite

Is the sea warm enough to swim in Plage de Sainte-Marguerite today?

Typical sea surface temperature in Plage de Sainte-Marguerite this time of year is 17.6°C (63.7°F) — classified as Cool / Refreshing (16°C – 20°C). Invigorating and crisp. Tolerable for active swimming, but chilly for prolonged casual bathing. Live readings load automatically.

What are the warmest months for swimming in Plage de Sainte-Marguerite?

The highest water temperatures in Plage de Sainte-Marguerite typically occur duringJune, July, August, September, when monthly averages reach peak seasonal levels.

What is the typical water temperature in Plage de Sainte-Marguerite in September?

Historically in September, water temperatures in Plage de Sainte-Marguerite average around17.6°C (63.7°F), fluctuating between a recorded minimum of 15.5°C and a maximum of 19.7°C.

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Plage de Sainte-Marguerite Coastal Zone Map

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