Finistère, France
Celtic Sea48.23°N, 4.42°WStation FR-FIN-TRE

Trez ar Poul Sea Water Temperature

A temperate beach on the Celtic Sea, warmest around August at about 16.1°C. Today's reading, 7-day forecast, and monthly averages below.

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Water Temperature NowBuoy & Sentinel-3 SST

Trez ar Poul water temperature

15.8
60.4°FVery Cold (< 16°C)

Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges.

+0°vs Sep avgCeltic Sea48.23°N, 4.42°W
Activity Index:SwimmingSnorkelingSurfingTypical conditions
Marine Atmosphere Grid Live Marine Feed
Coastal Air
17°C
63.1°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
15.8°C
60.4°F
Waves: 1m
Very Cold
ThuOct 1
16.1°C
61°F
Waves: 0.9m
Refreshing
FriOct 2
16.2°C
61.2°F
Waves: 0.7m
Refreshing
SatOct 3
16.1°C
61°F
Waves: 0.6m
Refreshing
SunOct 4
15.8°C
60.4°F
Waves: 0.7m
Very Cold
MonOct 5
15.5°C
59.9°F
Waves: 0.9m
Very Cold
TueOct 6
15.4°C
59.7°F
Waves: 1m
Very Cold
Forecast cooling trend: -0.4°C over 7 days at Trez ar Poul.
Confidence: High

Trez ar Poul Monthly Water Temperature Averages

Historical monthly climatology. The warmest water in Trez ar Poul occurs inJuly, August, September, October — peaking at16.1°C (61°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
11
Apr
13
May
15
Jun
16
Jul
16
Aug
Current
16
Sep
15
Oct
14
Nov
12
Dec
Full 12-month data table — min / avg / max & swimming comfort
MonthMin Water TempAverage Water TempMax Water TempSwimming Comfort
January9.6°C11°C13°CVery Cold (< 16°C)
February8.4°C10.4°C11.6°CVery Cold (< 16°C)
March8.8°C10.3°C11.6°CVery Cold (< 16°C)
April10.2°C11.3°C13.3°CVery Cold (< 16°C)
May11°C13.1°C15.9°CVery Cold (< 16°C)
June13.1°C14.7°C16.5°CVery Cold (< 16°C)
July14°C15.9°C18.1°CVery Cold (< 16°C)
August14.8°C16.1°C18.4°CCool / Refreshing (16°C – 20°C)
SeptemberCurrent14°C15.8°C17.4°CVery Cold (< 16°C)
October13.5°C15°C17°CVery Cold (< 16°C)
November12.7°C13.9°C15.7°CVery Cold (< 16°C)
December10.8°C12.3°C13.6°CVery Cold (< 16°C)

Swimming FAQs for Trez ar Poul

Is the sea warm enough to swim in Trez ar Poul today?

Typical sea surface temperature in Trez ar Poul this time of year is 15.8°C (60.4°F) — classified as Very Cold (< 16°C). Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges. Live readings load automatically.

What are the warmest months for swimming in Trez ar Poul?

The highest water temperatures in Trez ar Poul typically occur duringJuly, August, September, October, when monthly averages reach peak seasonal levels.

What is the typical water temperature in Trez ar Poul in September?

Historically in September, water temperatures in Trez ar Poul average around15.8°C (60.4°F), fluctuating between a recorded minimum of 14°C and a maximum of 17.4°C.

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