Morbihan, France
Cantabrian Sea47.58°N, 3.03°WStation FR-MOR-PET

Petites Plages Sea Water Temperature

A temperate beach on the Cantabrian Sea, warmest around August at about 18.3°C. Today's reading, 7-day forecast, and monthly averages below.

Live readings · auto-updating
Water Temperature NowBuoy & Sentinel-3 SST

Petites Plages water temperature

17.4
63.3°FCool / Refreshing (16°C – 20°C)

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

+0°vs Sep avgCantabrian Sea47.58°N, 3.03°W
Activity Index:SwimmingSnorkelingSurfingTypical conditions
Marine Atmosphere Grid Live Marine Feed
Coastal Air
19°C
66°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
17.4°C
63.3°F
Waves: 1m
Refreshing
ThuOct 1
17.7°C
63.9°F
Waves: 0.9m
Refreshing
FriOct 2
17.8°C
64°F
Waves: 0.7m
Refreshing
SatOct 3
17.7°C
63.9°F
Waves: 0.6m
Refreshing
SunOct 4
17.4°C
63.3°F
Waves: 0.7m
Refreshing
MonOct 5
17.1°C
62.8°F
Waves: 0.9m
Refreshing
TueOct 6
17°C
62.6°F
Waves: 1m
Refreshing
Forecast cooling trend: -0.4°C over 7 days at Petites Plages.
Confidence: High

Petites Plages Monthly Water Temperature Averages

Historical monthly climatology. The warmest water in Petites Plages occurs inJune, July, August, September — peaking at18.3°C (64.9°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
10
Feb
10
Mar
12
Apr
14
May
16
Jun
18
Jul
18
Aug
Current
17
Sep
16
Oct
14
Nov
12
Dec
Full 12-month data table — min / avg / max & swimming comfort
MonthMin Water TempAverage Water TempMax Water TempSwimming Comfort
January7.4°C10.1°C12°CVery Cold (< 16°C)
February7.7°C9.6°C11.6°CVery Cold (< 16°C)
March7.6°C9.9°C11.5°CVery Cold (< 16°C)
April10.3°C11.8°C15°CVery Cold (< 16°C)
May11.9°C14.1°C17.6°CVery Cold (< 16°C)
June14.4°C16.4°C18.2°CCool / Refreshing (16°C – 20°C)
July14.5°C17.7°C20.4°CCool / Refreshing (16°C – 20°C)
August16.7°C18.3°C21.4°CCool / Refreshing (16°C – 20°C)
SeptemberCurrent14.5°C17.4°C19.1°CCool / Refreshing (16°C – 20°C)
October14.3°C16.1°C18.6°CCool / Refreshing (16°C – 20°C)
November11.6°C13.9°C16°CVery Cold (< 16°C)
December10.6°C11.9°C13.3°CVery Cold (< 16°C)

Swimming FAQs for Petites Plages

Is the sea warm enough to swim in Petites Plages today?

Typical sea surface temperature in Petites Plages this time of year is 17.4°C (63.3°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 Petites Plages?

The highest water temperatures in Petites Plages typically occur duringJune, July, August, September, when monthly averages reach peak seasonal levels.

What is the typical water temperature in Petites Plages in September?

Historically in September, water temperatures in Petites Plages average around17.4°C (63.3°F), fluctuating between a recorded minimum of 14.5°C and a maximum of 19.1°C.

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