Trearddur Bay (Holy Island) Surf Forecast and Surf Reports

(Anglesy, UK)

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Trearddur Bay (Holy Island) Surf Guide

Trearddur Bay(Holy Island) in Anglesy is a quite exposed beach break that has unreliable waves with no particular seasonal pattern. Works best in offshore winds from the northeast with some shelter here from southeast winds. Windswells and groundswells in equal measure and the ideal swell angle is from the southwest. The beach breaks offer lefts and rights. When the surf is up, it can get quite busy in the water. Hazards include rips and rocks.

Trearddur Bay (Holy Island) Spot Info

Type:	Rating:	Reliability:	Todays Sea Temp*:
Beach	2	inconsistent	10.6°C*ocean temperature recorded from satellite

Surfing Trearddur Bay (Holy Island):

The best conditions reported for surf at Trearddur Bay (Holy Island) occur when a Southwest swell combines with an offshore wind direction from the Northeast.

Hourly Forecast

16 Day Forecast

What's the best time of year to surf Trearddur Bay (Holy Island) (for consistent clean waves)?

januaryBest Season: winter

The best time of year for surfing Trearddur Bay (Holy Island) with consistent clean waves (rideable swell with light / offshore winds) is during Winter and most often the month of January. Clean surfable waves are typically found 0% of the time in January while 33% of the time it tends to be blown out. For the remaining 67% of the time it is considered too small by most surfers but may still be OK for beginners and groms at times.

clean

Surfable waves that hold up well for longer rides in prevailing cross-offshore, offshore or light wind conditions.

blown out

33%

Surfable sized waves that are of poorer quality due to prevailing onshore, cross-onshore or windy conditions (may be preferable for kitesurfing).

too small

67%

Waves usually considered too small for good surf. Some wave-magnet breaks may still work though if conditions are right (on occasion).

Explore Trearddur Bay (Holy Island) Location Map

Interactive Trearddur Bay (Holy Island) surf break location map. View information about nearby surf breaks, their wave consistency and rating compared to other spots in the region. Current swell conditions from local buoys are shown along with live wind speed and direction from nearby weather stations. Click icons on the map for more detail. The closest passenger airport to Trearddur Bay (Holy Island) is Isle Of Man Airport (IOM) in England, 90 km (56 miles) away (directly). The second nearest airport to Trearddur Bay (Holy Island) is Hawarden Airport (CEG), also in England, 110 km (68 miles) away.

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Please note that some surf spot locations are approximate to protect their exact location while others are not shown at close zoom level.

Trearddur Bay (Holy Island) Surf Forecasts:

Hourly Forecast

16 Day Forecast

Todays Surf Summary
Wednesday, 6 May 2026, 11:43 Local Time

m, °C	Wednesday 06
ft, °F	10AM	1PM	4PM	7PM
Wave (m)
Period (s)	-	-	-	-
Wind (km/h)
Wind State	cross- off	cross- on	on	on

Tides at Trearddur Bay (Holy Island)

Current tide and informaton

For Holyhead, Wales, 4 km from Trearddur Bay (Holy Island).

Next High Water: 01:52pm | 4.74m

Next Low Water: 07:55pm | 1.69m

NEXT	IS AT (local time)	remaining
high tide
low tide

Trearddur Bay (Holy Island) Sea Temperature

The water temperature (10.6 °C) at Trearddur Bay (Holy Island) is fairly cold. Surfers will need a quality steamer wetsuit, a neoprene hood, gloves and boots because it will be cloudy with an effective air temperature of (8.0 °C).

Today, many surfers would wear a winter wetsuit, a neoprene hood, gloves and boots.