Finistère, France
Celtic Sea47.99°N, 4.48°WStation FR-FIN-GWE

Gwendrez Sea Water Temperature

A temperate beach on the Celtic Sea, warmest around August at about 17.4°C. Today's reading, 7-day forecast, and monthly averages below.

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Water Temperature NowBuoy & Sentinel-3 SST

Gwendrez water temperature

17
62.6°FCool / Refreshing (16°C – 20°C)

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

+0°vs Sep avgCeltic Sea47.99°N, 4.48°W
Activity Index:SwimmingSnorkelingSurfingTypical conditions
Marine Atmosphere Grid Live Marine Feed
Coastal Air
19°C
65.3°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°C
62.6°F
Waves: 1m
Refreshing
ThuOct 1
17.3°C
63.1°F
Waves: 0.9m
Refreshing
FriOct 2
17.4°C
63.3°F
Waves: 0.7m
Refreshing
SatOct 3
17.3°C
63.1°F
Waves: 0.6m
Refreshing
SunOct 4
17°C
62.6°F
Waves: 0.7m
Refreshing
MonOct 5
16.7°C
62.1°F
Waves: 0.9m
Refreshing
TueOct 6
16.6°C
61.9°F
Waves: 1m
Refreshing
Forecast cooling trend: -0.4°C over 7 days at Gwendrez.
Confidence: High

Gwendrez Monthly Water Temperature Averages

Historical monthly climatology. The warmest water in Gwendrez occurs inJune, July, August, September — peaking at17.4°C (63.3°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)
11
Jan
10
Feb
10
Mar
12
Apr
14
May
16
Jun
17
Jul
17
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
January9.9°C11°C12.9°CVery Cold (< 16°C)
February8.6°C10.4°C11.9°CVery Cold (< 16°C)
March9°C10.3°C11.9°CVery Cold (< 16°C)
April10°C11.6°C14.3°CVery Cold (< 16°C)
May11.5°C13.7°C17.5°CVery Cold (< 16°C)
June13.9°C15.9°C18.2°CVery Cold (< 16°C)
July14.4°C17.3°C20.4°CCool / Refreshing (16°C – 20°C)
August14.9°C17.4°C19.9°CCool / Refreshing (16°C – 20°C)
SeptemberCurrent15°C17°C18.4°CCool / Refreshing (16°C – 20°C)
October13.7°C15.8°C18.2°CVery Cold (< 16°C)
November12.8°C14.2°C16°CVery Cold (< 16°C)
December11°C12.4°C14°CVery Cold (< 16°C)

Swimming FAQs for Gwendrez

Is the sea warm enough to swim in Gwendrez today?

Typical sea surface temperature in Gwendrez this time of year is 17°C (62.6°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 Gwendrez?

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

What is the typical water temperature in Gwendrez in September?

Historically in September, water temperatures in Gwendrez average around17°C (62.6°F), fluctuating between a recorded minimum of 15°C and a maximum of 18.4°C.

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