Côtes-d'Armor, France
Celtic Sea48.64°N, 2.08°WStation FR-COT-PLA

Plage du Port-Blanc Sea Water Temperature

A temperate beach on the Celtic Sea, warmest around August at about 18.2°C. Today's reading, 7-day forecast, and monthly averages below.

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Water Temperature NowBuoy & Sentinel-3 SST

Plage du Port-Blanc water temperature

17.9
64.2°FCool / Refreshing (16°C – 20°C)

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

+0°vs Sep avgCeltic Sea48.64°N, 2.08°W
Activity Index:SwimmingSnorkelingSurfingTypical conditions
Marine Atmosphere Grid Live Marine Feed
Coastal Air
19°C
66.9°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
17.9°C
64.2°F
Waves: 1m
Refreshing
ThuOct 1
18.2°C
64.8°F
Waves: 0.9m
Refreshing
FriOct 2
18.3°C
64.9°F
Waves: 0.7m
Refreshing
SatOct 3
18.2°C
64.8°F
Waves: 0.6m
Refreshing
SunOct 4
17.9°C
64.2°F
Waves: 0.7m
Refreshing
MonOct 5
17.6°C
63.7°F
Waves: 0.9m
Refreshing
TueOct 6
17.5°C
63.5°F
Waves: 1m
Refreshing
Forecast cooling trend: -0.4°C over 7 days at Plage du Port-Blanc.
Confidence: High

Plage du Port-Blanc Monthly Water Temperature Averages

Historical monthly climatology. The warmest water in Plage du Port-Blanc occurs inJuly, August, September, October — peaking at18.2°C (64.8°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
9
Mar
10
Apr
13
May
15
Jun
17
Jul
18
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
January7.8°C9.5°C11.5°CVery Cold (< 16°C)
February7.2°C8.7°C10°CVery Cold (< 16°C)
March7.3°C8.8°C10.2°CVery Cold (< 16°C)
April8.8°C10.4°C12.4°CVery Cold (< 16°C)
May11.1°C12.6°C14.8°CVery Cold (< 16°C)
June13.5°C15°C17.5°CVery Cold (< 16°C)
July15.7°C17°C18.6°CCool / Refreshing (16°C – 20°C)
August17.1°C18.2°C20°CCool / Refreshing (16°C – 20°C)
SeptemberCurrent16.7°C17.9°C19.8°CCool / Refreshing (16°C – 20°C)
October14.6°C16.4°C18.3°CCool / Refreshing (16°C – 20°C)
November11°C13.5°C15.8°CVery Cold (< 16°C)
December9.5°C11.2°C13°CVery Cold (< 16°C)

Swimming FAQs for Plage du Port-Blanc

Is the sea warm enough to swim in Plage du Port-Blanc today?

Typical sea surface temperature in Plage du Port-Blanc this time of year is 17.9°C (64.2°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 Port-Blanc?

The highest water temperatures in Plage du Port-Blanc typically occur duringJuly, August, September, October, when monthly averages reach peak seasonal levels.

What is the typical water temperature in Plage du Port-Blanc in September?

Historically in September, water temperatures in Plage du Port-Blanc average around17.9°C (64.2°F), fluctuating between a recorded minimum of 16.7°C and a maximum of 19.8°C.

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Plage du Port-Blanc Coastal Zone Map

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