Amlwch Harbour

6.6 · Harbour · Isle of Anglesey

Amlwch Harbour is a small, sheltered working harbour with quays, harbour walls and deeper water in the inner basin, giving relatively easy access for shore anglers. Fishing is typically close-range with ledgered baits down the wall for mixed groundfish and eels, while spinning/float fishing can pick up mackerel and pollack around the harbour mouth when tides run. It’s best around moving water (especially the last of the flood and first of the ebb), with calmer conditions suiting the inner harbour and rougher seas pushing more fish to the entrance.

Should you fish Amlwch Harbour?

55 Fair

Today · Best available

Best available: 18:00-21:00 around the falling tide

Most likely species: Mackerel and Pollack

Fair conditions. Best available around 18:00-21:00 around the falling tide, but no window reaches the strong threshold today. Good chance of Mackerel and Pollack.

W 6 mph Rain 82% High tide 04:07

Fishable, but pick your timing carefully.

Plan this mark

7-day fishing forecast for Amlwch Harbour — 7-day forecast

Scores and best windows are weighted for .

Met Office 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.

Tuesday looks better than today. Unlock the week to see its score and exact window.

· windows & tide

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.

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Amlwch Harbour is a sheltered, close-range harbour venue where the best decisions are usually about position rather than distance. Fish the entrance and outside-facing sections when tide and clarity suit lures or feathers for mackerel, pollack and occasional coalfish. Drop into the inner basin, corners and wall edges for reliable bottom sport after dark or in calmer, more sheltered conditions. Moving water is important: the last of the flood, first of the ebb and mid-tide flow usually offer a better chance than dead slack water.

  • Know when to fish the outer face instead of the inner wall
  • Time the last flood and first ebb for the best all-round window
  • Switch tactics fast when weed or harbour activity kills presentation
  • Target pouting, whiting and eels in the right harbour corners after dark
  • Use the entrance properly for mackerel, pollack and coalfish windows

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Forecast tuning currently supports Bass and Mackerel — more species are on the way.

Overall rating

6.6 /10

Blend of catch potential, access, safety, and overall experience.

Category scores

Catch Potential 6/10
Species Variety 7/10
Scenery & Comfort 7/10
Safety 6/10
Accessibility 8/10

Local knowledge

Amlwch Harbour fishing guide

Practical access, seasons, methods, tides, safety and facilities for this mark.

Amlwch Harbour is a sheltered north-coast harbour mark with easy access, depth close in, and consistent sport for mixed species when the conditions are right. It’s a classic “harbour and breakwater” venue: dependable in rougher weather than open marks, but still tide- and traffic-dependent.

  • Best thought of as a mixed-light-tackle venue with occasional better fish rather than a specimen-only mark
  • Can fish well when outside marks are unfishable, but boat movements and safety rules strongly influence where/when you can cast
  • Expect bites to vary with tide strength, water clarity and harbour activity

The mark is within Amlwch (Port Amlwch), on the north-east of Anglesey, centred around the harbour walls, inner basin edges and the outer breakwater areas. Access is generally straightforward on foot from the town, but you must stay out of working areas.

  • Common fishing positions include harbour walls, basin corners/edges, and outside-facing sections where you can reach deeper water
  • Parking is typically close by in the town/harbour vicinity, then a short walk to the wall(s)
  • Expect uneven surfaces, drops to water, and slippery algae on lower edges; choose a safe stance and keep mobile gear to a minimum

Amlwch Harbour is known for the usual North Wales harbour mix: small predators and flatfish on the bottom, with occasional better fish when baitfish are present or after a blow. Species can be seasonal, with the harbour offering useful shelter when the open coast is coloured up.

  • Mackerel: often around the outer harbour in season; varies year to year with shoals and clarity
  • Pollack and coalfish: likely around wall structure and any kelpy/rocky edges outside the harbour mouth
  • Wrasse (where rough ground and structure allow): best on cleaner, clearer water and lighter tactics
  • Flatfish (flounder/dab and occasionally plaice-type fish): along smoother bottoms and silty edges inside/near the harbour
  • Dogfish and small whiting: can show, especially on stronger tides and at night
  • Rocklings and small codling-type captures are possible at times, but not reliable every trip

This is a venue where simple rigs and good presentation usually outscore complicated setups. Match tactics to whether you’re fishing the inner harbour (cleaner ground, more snags from harbour debris) or the outside wall (more tide and rougher ground).

  • Spinning/feathering (when fish are showing): 2–4 inch lures, small metals, or feathers worked in the tide run; keep moving until you locate fish
  • Float fishing: useful along wall edges for wrasse/pollack; fish close to structure but be ready to steer fish away from snags
  • Bottom fishing: 1–2 hook flapper or a simple running ledger for flatfish and general species; keep hook lengths shorter if snaggy
  • Baits: ragworm/lugworm for flats and mixed bags; squid strip and mackerel/bluey for dogfish and general bottom feeders; crab is worth a try where wrasse are present
  • Tackle tips: bring spare leads and a dehooker/forceps; scale down in calm clear water (lighter leads and longer traces), scale up when tide and swell push through the entrance

The harbour fishes differently depending on how much tide is running and how much swell is pushing into the entrance. In general, you want enough movement to bring oxygen and food, but not so much that presentation becomes difficult or weed collects on the line.

  • Mid-tide periods often give better flow and feeding than very slack water, especially near the harbour mouth
  • High water can open up access to deeper water close in and improve lure fishing along the walls
  • After a blow, the harbour can be a good option, but if the water is heavily coloured, consider stronger-scent baits and keep rigs simple
  • Clear, settled conditions tend to suit lure/float tactics; coloured water and darkness tend to suit bottom baits
  • Watch for weed/suspended debris on spring tides or after storms; it can kill bites and drag rigs into snags

Amlwch Harbour can be family-friendly in calm weather, but it remains a working harbour environment with real hazards. Treat it as an “urban rock mark”: hard surfaces, sudden drop-offs, and slippery growth at the waterline.

  • Stay well clear of slipways, ladders, mooring ropes, loading areas, and any active berths
  • Slippery surfaces are common; wear footwear with good grip and avoid stepping onto lower, algae-covered edges
  • Use a long-handled landing net and plan how you’ll land fish before you start (some walls are high)
  • Night fishing increases risk: carry a headtorch, keep casts controlled, and avoid crowded/awkward stances
  • Be cautious in onshore winds: gusts can make high walls and exposed corners uncomfortable and unsafe
  • Consider the public: keep gear tidy, don’t block walkways, and be extra careful with hooks around pedestrians

Being in a town harbour, Amlwch has more conveniences than many remote Anglesey marks, which makes it handy for short sessions and mixed groups.

  • Nearby you can usually find shops, food options and amenities in the town
  • Tackle/bait availability can vary locally; plan ahead if you need specific baits
  • Benches/flat areas may be limited depending on where you set up; bring what you need but pack light

Amlwch is all about fishing smart around structure and tide, and choosing a swim that lets you present a bait naturally without constant snags. A short roving session often beats sitting in one place if fish aren’t showing.

  • Start by looking for signs of life: baitfish, terns/diving birds, or mackerel “flashing” near the surface
  • If snagging is an issue, shorten hook lengths, try a slightly lighter lead, and fish cleaner lanes rather than tight to clutter
  • For wrasse/pollack, fish close in and keep pressure on immediately to stop fish diving into structure
  • For flatfish, slow things down: smaller hooks, longer traces, and worm baits fished on cleaner bottom inside/near the harbour
  • Keep an eye on water clarity: in very clear water, scale down line and use smaller baits; in coloured water, use bigger, smellier baits

There may be local restrictions in and around Amlwch Harbour because it is a working port, and rules can change with harbour operations. I’m not aware of a blanket, always-in-force ban that covers all angling spots here, but you must follow posted signage and any directions from harbour staff.

  • Check for harbour byelaws, safety notices, and any “no fishing” signs on specific walls, pontoons or private areas
  • Do not fish where it interferes with navigation, moorings, slipways, or commercial activity
  • If approached by harbour personnel, comply and move—some areas may be restricted at certain times
  • Follow UK angling best practice: take litter home, handle fish carefully, and observe any current guidance on protected species and minimum sizes by checking official sources/signage locally