Côtes-d'Armor, France
Celtic Sea48.78°N, 3.04°WStation FR-COT-PLA

Plage du Four à Chaux Sea Water Temperature

A temperate beach on the Celtic Sea, warmest around September at about 17.5°C. Today's reading, 7-day forecast, and monthly averages below.

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Water Temperature NowBuoy & Sentinel-3 SST

Plage du Four à Chaux water temperature

17.5
63.5°FCool / Refreshing (16°C – 20°C)

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

+0°vs Sep avgCeltic Sea48.78°N, 3.04°W
Activity Index:SwimmingSnorkelingSurfingTypical conditions
Marine Atmosphere Grid Live Marine Feed
Coastal Air
19°C
66.2°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
17.5°C
63.5°F
Waves: 1m
Refreshing
ThuOct 1
17.8°C
64°F
Waves: 0.9m
Refreshing
FriOct 2
17.9°C
64.2°F
Waves: 0.7m
Refreshing
SatOct 3
17.8°C
64°F
Waves: 0.6m
Refreshing
SunOct 4
17.5°C
63.5°F
Waves: 0.7m
Refreshing
MonOct 5
17.2°C
63°F
Waves: 0.9m
Refreshing
TueOct 6
17.1°C
62.8°F
Waves: 1m
Refreshing
Forecast cooling trend: -0.4°C over 7 days at Plage du Four à Chaux.
Confidence: High

Plage du Four à Chaux Monthly Water Temperature Averages

Historical monthly climatology. The warmest water in Plage du Four à Chaux occurs inJuly, August, September, October — peaking at17.5°C (63.5°F) in September.

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
9
Mar
10
Apr
12
May
14
Jun
16
Jul
17
Aug
Current
18
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
January8.8°C10.4°C12.1°CVery Cold (< 16°C)
February8.3°C9.6°C10.7°CVery Cold (< 16°C)
March7.9°C9.4°C10.4°CVery Cold (< 16°C)
April8.9°C10.2°C11.8°CVery Cold (< 16°C)
May10.5°C12°C14.2°CVery Cold (< 16°C)
June12.8°C14.1°C15.8°CVery Cold (< 16°C)
July14.3°C16°C17.9°CCool / Refreshing (16°C – 20°C)
August15.9°C17.3°C19°CCool / Refreshing (16°C – 20°C)
SeptemberCurrent16.7°C17.5°C18.5°CCool / Refreshing (16°C – 20°C)
October14.6°C16.4°C18.1°CCool / Refreshing (16°C – 20°C)
November11.7°C14.1°C15.8°CVery Cold (< 16°C)
December10.6°C12.2°C13.7°CVery Cold (< 16°C)

Swimming FAQs for Plage du Four à Chaux

Is the sea warm enough to swim in Plage du Four à Chaux today?

Typical sea surface temperature in Plage du Four à Chaux this time of year is 17.5°C (63.5°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 du Four à Chaux?

The highest water temperatures in Plage du Four à Chaux typically occur duringJuly, August, September, October, when monthly averages reach peak seasonal levels.

What is the typical water temperature in Plage du Four à Chaux in September?

Historically in September, water temperatures in Plage du Four à Chaux average around17.5°C (63.5°F), fluctuating between a recorded minimum of 16.7°C and a maximum of 18.5°C.

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