Gwynedd, United Kingdom
Irish Sea52.81°N, 4.50°WStation UN-GWY-TRA

Traeth Abersoch Beach Sea Water Temperature

A temperate beach on the Irish Sea, warmest around August at about 16.8°C. Today's reading, 7-day forecast, and monthly averages below.

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

Traeth Abersoch Beach water temperature

16.2
61.2°FCool / Refreshing (16°C – 20°C)

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

+0°vs Sep avgIrish Sea52.81°N, 4.50°W
Activity Index:SwimmingSnorkelingSurfingTypical conditions
Marine Atmosphere Grid Live Marine Feed
Coastal Air
18°C
63.9°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
16.2°C
61.2°F
Waves: 1m
Refreshing
ThuOct 1
16.5°C
61.7°F
Waves: 0.9m
Refreshing
FriOct 2
16.6°C
61.9°F
Waves: 0.7m
Refreshing
SatOct 3
16.5°C
61.7°F
Waves: 0.6m
Refreshing
SunOct 4
16.2°C
61.2°F
Waves: 0.7m
Refreshing
MonOct 5
15.9°C
60.6°F
Waves: 0.9m
Very Cold
TueOct 6
15.8°C
60.4°F
Waves: 1m
Very Cold
Forecast cooling trend: -0.4°C over 7 days at Traeth Abersoch Beach.
Confidence: High

Traeth Abersoch Beach Monthly Water Temperature Averages

Historical monthly climatology. The warmest water in Traeth Abersoch Beach occurs inJuly, August, September, October — peaking at16.8°C (62.2°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)
9
Jan
8
Feb
8
Mar
10
Apr
12
May
14
Jun
16
Jul
17
Aug
Current
16
Sep
14
Oct
12
Nov
10
Dec
Full 12-month data table — min / avg / max & swimming comfort
MonthMin Water TempAverage Water TempMax Water TempSwimming Comfort
January7.5°C8.5°C10.4°CVery Cold (< 16°C)
February6.2°C7.8°C9.1°CVery Cold (< 16°C)
March6.1°C7.7°C9.8°CVery Cold (< 16°C)
April8°C9.5°C10.9°CVery Cold (< 16°C)
May9.5°C11.7°C13.2°CVery Cold (< 16°C)
June12.6°C14.3°C15.8°CVery Cold (< 16°C)
July13°C15.9°C17.8°CVery Cold (< 16°C)
August16°C16.8°C18.1°CCool / Refreshing (16°C – 20°C)
SeptemberCurrent14.5°C16.2°C18.2°CCool / Refreshing (16°C – 20°C)
October12.7°C14.4°C16.2°CVery Cold (< 16°C)
November9.4°C11.7°C13.7°CVery Cold (< 16°C)
December9.1°C10°C11°CVery Cold (< 16°C)

Swimming FAQs for Traeth Abersoch Beach

Is the sea warm enough to swim in Traeth Abersoch Beach today?

Typical sea surface temperature in Traeth Abersoch Beach this time of year is 16.2°C (61.2°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 Traeth Abersoch Beach?

The highest water temperatures in Traeth Abersoch Beach typically occur duringJuly, August, September, October, when monthly averages reach peak seasonal levels.

What is the typical water temperature in Traeth Abersoch Beach in September?

Historically in September, water temperatures in Traeth Abersoch Beach average around16.2°C (61.2°F), fluctuating between a recorded minimum of 14.5°C and a maximum of 18.2°C.

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Traeth Abersoch Beach Coastal Zone Map

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