Ille-et-Vilaine, France
Celtic Sea48.70°N, 1.85°WStation FR-ILL-PLA

Plage de Port Picain 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.

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

Plage de Port Picain 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 Sea48.70°N, 1.85°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 de Port Picain.
Confidence: High

Plage de Port Picain Monthly Water Temperature Averages

Historical monthly climatology. The warmest water in Plage de Port Picain 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 de Port Picain

Is the sea warm enough to swim in Plage de Port Picain today?

Typical sea surface temperature in Plage de Port Picain 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 de Port Picain?

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

What is the typical water temperature in Plage de Port Picain in September?

Historically in September, water temperatures in Plage de Port Picain 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 de Port Picain Coastal Zone Map

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