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6.3 · Beach · Isle of Anglesey
Newborough Beach (Traeth Llanddwyn) is a long, gently shelving sandy surf beach on the west side of Anglesey with wide tidal range and occasional shallow gutters and banks. Access is on foot from the Newborough Forest car parks and along well-used paths to the open strand; fishing is typically long-range surf casting into clean sand with the best sport around changes of tide, plus occasional rougher patches toward the Llanddwyn end in settled weather.
Today · Best available
Best available: 18:00-21:00 around the falling tide
Most likely species: Plaice and Bass
Fair conditions. Best available around 18:00-21:00 around the falling tide, but no window reaches the strong threshold today. Good chance of Plaice and Bass.
Fishable, but pick your timing carefully.
Scores and best windows are weighted for .
Met Office · Open-Meteo
Where the data comes from. Weather and sea-state readings come from the Met Office and Open-Meteo forecast models, refreshed several times a day. High and low water are taken from tide-station predictions for this stretch of coast.
How the score works. Each window is scored 0–100 from the signals that most reliably move fish inshore: tide movement (a running tide carries food, so the last of the flood and first of the ebb are usually the prime spells), wind speed and direction (onshore wind stirs food into the surf — up to the point it makes fishing hard), sea state (a little wave and swell movement helps, heavy swell hurts), and weather — rain, temperature and light. Behind the headline number we score bite opportunity and comfort separately, and run a separate safety check on wind and swell. The size of the tide counts too: spring tides move more water than neaps, so the tidal range for this stretch of coast is weighed alongside the tide's direction, your target species and this mark — and unusually big springs strengthen the safety check, because the water rises faster and covers more ground.
Your target species counts. Pick a species below and the score also weights what we know about it — its season, preferred sea temperature, tide stage and sea state, and whether it feeds by day or night.
The rating is guidance, not a guarantee — conditions change fast on the coast, so always judge the sea in front of you before you fish.
Next 7 days · Aug 6–12, 2026
Local tide times
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Fishing rating
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Bite opportunity
Comfort
Safety check
Strong spring tides — the sea rises faster and reaches further up the shore than usual, so allow extra margin on access routes and cut-off points.
The fishing rating combines opportunity and comfort. Always check local sea conditions; the safety check is guidance, not a guarantee.
Spring vs neap tides. Spring tides have a larger difference between high and low water, so more water moves on each tide — usually stronger flow that stirs up food and gets fish feeding. Neap tides have a smaller range and generally gentler movement. The range here is compared with what is normal for this stretch of coast, and the cycle swings between springs and neaps roughly every week, following the moon.
Big spring tides: the water rises faster and covers more ground than usual — double-check access routes and cut-off points before you fish.
Tide curve will appear once tide data is available.
All windows will appear once the forecast is loaded.
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Why this window?
Bite
Comfort
Safety
What's moving this score
This window is scored for — its season, preferred tide, temperature and sea state are weighed alongside the general conditions below.
Mixed signals; focus on timing and location.
Trip planner
Choose when you're free and what you want to catch. We'll show the best tide, weather window and method for this mark.
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Jump to towns around this mark for more marks and guides.
Explore nearby towns: Newborough (Isle of Anglesey) · Dwyran · Dinas Dinlle · Malltraeth · Caernarfon
Zoom and pan to explore access points and nearby marks.
Jump to guideForecast tuning currently supports Bass and Mackerel — more species are on the way.
Overall rating
Blend of catch potential, access, safety, and overall experience.
Category scores
Local knowledge
Practical access, seasons, methods, tides, safety and facilities for this mark.
Newborough Beach (Traeth Llanddwyn) is a long, open sand-and-shingle shoreline on the south-west of Anglesey, backed by the Newborough Warren dune system and facing into Caernarfon Bay. It’s best known as a mobile “scratch” venue where conditions dictate everything, but when the surf is right it can produce quality fish as well as sport with flatties.
The mark is approached via Newborough Forest/Warren and the main beach access used by walkers, with the shoreline running down towards Llanddwyn Bay and Ynys Llanddwyn. Access is straightforward in good conditions but can involve soft sand and long walks if you want to get away from busy areas.
Newborough is primarily a mixed-species surf venue, with typical targets changing through the year and with sea state. The most consistent catches are usually flatfish, with rounds of other species when conditions line up.
Most anglers fish Newborough with standard beachcasting tactics, adapting to surf height and the amount of weed or drift. Success often comes from locating a gutter or a line of broken water rather than simply casting long.
This beach responds strongly to tide size, water colour and wind direction, with the best spells often coinciding with a bit of surf and some colour in the water. Neap tides can fish well for flatties in settled weather, while bigger tides can switch on bass and rays when there’s sufficient depth.
Newborough is generally a safe, open-beach venue, but it’s still a big tidal environment with soft sand, strong winds and long distances back to the car. Treat it like a remote mark once you’ve walked away from the main access.
Facilities are centred around the main visitor access rather than on the beach itself, so think of it as a walk-in venue with amenities at the start/end of your session.
This is a mark where mobility and water-reading pay off, and small changes in depth make a big difference. Don’t be afraid to move a few hundred yards if you’re not seeing bites.
Newborough Beach sits within a sensitive dune and coastal environment, and parts of the wider area are managed for conservation. Sea angling is generally practised here, but restrictions can apply locally (including access controls, seasonal management, or rules around protected areas), and these can change.
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