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Gloucestershire

Lydney Harbour

5.4 · Harbour · Gloucestershire

Historic small harbour on the Severn Estuary where the Lydney Canal meets the river. Expect extreme tidal range, fast currents and extensive mudflats; the fishable window is typically a couple of hours either side of high water from the stable upper walls only. Summer and early autumn bring the best action with mullet and bass; flounder and silver eels feature, with occasional winter whiting. Access and parking are good via the heritage site, but underfoot can be uneven and slippery; never venture onto mud or lower steps and wear a lifejacket in rough conditions.

Should you fish Lydney Harbour?

56 Fair

Today · Best available

Best available: 21:00-00:00 around the rising tide

Most likely species: European Eel and Bass

Fair conditions. Best available around 21:00-00:00 around the rising tide, but no window reaches the strong threshold today. Good chance of European Eel and Bass.

NW 3 mph Rain 0% High tide 01:03

Fishable, but pick your timing carefully.

Plan this mark

7-day fishing forecast for Lydney 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.

Wednesday 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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Lydney Harbour is a timing-led Severn Estuary harbour mark where the safest and most productive fishing is normally from the stable upper walls around high water. The main decision is whether to target the outer harbour mouth and channel edge for bass, flounder, whiting or odd codling, or the calmer inner wall and basin margins for mullet and eels. Neap to mid-range tides usually give the best balance of water, presentation and safety; very big springs, bore days, heavy rain and strong weed or debris can quickly make the mark hard work.

  • Know when the Lydney high-water window is actually worth fishing.
  • Pick the outer face or inner wall based on your target species.
  • Avoid the tide states that turn Lydney into debris and drag.
  • Use short casts into the right gutters instead of wasting bait in the main flow.
  • Have a nearby estuary backup ready if the bore, weed or rain spoils the session.

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Aylburton 0.5 mi Lydney 1.2 mi Alvington 1.7 mi Bream 2.3 mi Woolaston 2.3 mi

Explore nearby towns: Aylburton · Lydney · Alvington · Bream · Woolaston

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

Overall rating

5.4 /10

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

Category scores

Catch Potential 6/10
Species Variety 5/10
Scenery & Comfort 6/10
Safety 3/10
Accessibility 6/10

Flounder 8/10
Tip: Rag/lug baits on 2–3 hook flappers, cast short into muddy channels. Best 2 hrs either side of HW in winter–spring. Use 5–6oz grip leads to hold in Severn tide.
Bass 7/10
Tip: Peeler crab or lug on pulley/ledger. Fish the flood around the harbour mouth and eddies; after dusk summer–autumn. Short casts along channel edge; coloured water favours bait over lures.
European Eel 7/10
Tip: Warm evenings on rag or small fish strips. Cast into slacker water inside the basin or along wall margins, July–Sept. Use circles/barbless for safe release.
Mullet (Thin-lipped) 7/10
Tip: Baited spinner or small Mepps tipped with rag. Work the basin/slack water on neaps in clear spells. Summer shoals; stealth and light gear.
Mullet (Thick-lipped) 6/10
Tip: Bread flake or tiny rag under a float tight to the inner wall on slack or neap tides. Best on warm, calm evenings late spring–autumn.
Common Goby 5/10
Tip: Tiny hooks (size 12–16) with rag scraps along the wall at low water. Keep baits static in pockets out of the main flow. Fun species for kids.
Whiting 4/10
Tip: Occasional in cold snaps. Small worm/squid strips after dark on the flood in midwinter; aim for the deeper channel from the outer wall.
Cod 3/10
Tip: Odd winter codling on big lug/crab cocktails. Heavy gear with 6oz grips; fish the dusk flood and first of the ebb from the outer wall into the main channel.
European Smelt 3/10
Tip: Late winter runs. Use small sabikis or size 10 hooks with tiny rag slivers under lights at dusk near the harbour mouth on making tides.

Local knowledge

Lydney Harbour fishing guide

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

Lydney Harbour sits on the upper Severn Estuary in Gloucestershire, a restored historic dock and tidal basin with easy, mostly flat access. It’s a classic estuary mark for winter flounder and summer bass and mullet, but the huge tides and soft mud demand respect and good planning.

Reaching the harbour is straightforward, with brown tourist signs for Lydney Harbour from the A48 through Lydney town. Access is via Harbour Road to the dedicated car park; from there it’s a short, level stroll to the basin and outer walls on hard paths and old cobbles.

  • Follow signs to Lydney Harbour from Lydney town centre; the car park is at the end of Harbour Road and is typically free
  • Short, easy walk on gravel, tarmac and cobbled surfaces; expect some uneven ground and puddles after rain
  • Angling space is along the outer harbour walls and riverbank either side of the entrance; avoid the swing bridge, lock gates and any areas with no public access
  • Public transport: Lydney rail station and bus stops are in town; it’s a manageable walk or short taxi ride to the harbour
  • Car park gate hours can change seasonally for site security; check on-site signage before fishing into darkness
  • Do not venture onto the foreshore or mudflats—stick to firm, man‑made surfaces only

This is a genuine estuary venue with a seasonal mix, led by flounder, school bass and mullet. Expect bycatch of eels in summer and the odd surprise after big weather.

  • Spring (Mar–May)
    • Flounder lingering from winter, tailing off by late spring
    • School bass building from late April/May on warmer pushes
    • Thin‑lipped and thick‑lipped mullet arriving on neap tides in settled weather
    • Migratory shad pass through in April–May (protected—must be returned)
  • Summer (Jun–Aug)
    • Bass (mostly schoolies, the odd better fish at dusk/night on a flood)
    • Thick‑ and thin‑lipped mullet around calm pockets and inside edges
    • Silver eels common at night (return alive)
  • Autumn (Sep–Nov)
    • Bass through September and October, tapering with first frosts
    • Flounder numbers build steadily from October onwards
    • Very occasional whiting or codling after prolonged northerlies/colder snaps, but not reliable this far up estuary
  • Winter (Dec–Feb)
    • Peak flounder fishing (often best Dec–Feb on neaps to mid-tides)
    • Odd estuary codling possible in severe cold spells only; mostly quiet otherwise

Tides rule everything here: fish the last of the flood and first of the ebb with tackle that will hold in heavy flow. Present small natural baits for flounder and more substantial offerings or refined mullet tactics in summer.

  • General tackle
    • 12–13 ft beachcaster or powerful estuary rod; 4–6 oz wired grip leads are standard
    • 20–30 lb mono with 60 lb shock leader, or 30–40 lb braid with a mono rubbing leader
    • Tripod for rod stability on uneven ground; head torch and spare lights for night sessions
  • Rigs and presentations
    • 1–2 hook flappers with size 2–4 Aberdeens for flounder; keep snoods 12–18 in for movement in flow
    • Long flowing trace or up‑and‑over for bass with 2/0–3/0 circles; add a weak link (rotten bottom) to protect against snags
    • For mullet: small waggler or crystal float, size 8–12 hooks, bread flake or mashed bread loose‑feed in calmer corners; thin‑lip spinners or small spoons sweetened with Isome can work on neaps
  • Baits
    • Ragworm is the top flounder bait; lugworm also scores
    • Peeler crab in late spring/summer for bass; also rag/lug cocktails or small fish strips
    • Bread for mullet; keep it subtle and scale down tackle
  • Timing
    • Focus on the last 2 hours of the flood and the first hour of the ebb; dusk into early night is prime for bass in summer
    • Neap to medium tides are most manageable; springs often demand heavier leads and can be unfishable

The Severn’s massive tidal range and bore shape everything at Lydney Harbour. Plan around neaps to medium springs, watch debris after rain, and treat bore days with caution.

  • Tides
    • Best on neap to mid-range tides; very big springs create extreme flow, heavy debris and poor presentation
    • Target the flood’s last 2 hours and first hour of the ebb for consistent bites
    • Severn Bore days: arrive early, stand well back, and consider fishing after the bore passes when water settles
  • Conditions
    • Water is almost always coloured; a steady, mild SW airflow is fine, but strong winds drive weed and debris
    • After heavy rain, expect fresh water, rafts of debris and slower fishing until it clears
    • Warm, settled spells bring mullet close; crisp, high‑pressure winter days are reliable for flounder
  • Seasonality
    • Flounder peak Dec–Feb; bass and mullet peak Jun–Sep; shoulder months can be excellent in stable weather

This is a working heritage site with deep water, fast tides and lethal mud. Keep to hard standings, wear appropriate gear, and give the bore and edges real respect.

  • Deep water and steep edges with few railings—wear a lifejacket, especially when fishing alone or after dark
  • Soft mud and silt are treacherous—never step off rock, concrete or cobbles onto the foreshore
  • Strong currents and tidal surges; be off the lowest levels well before high water and the bore’s arrival
  • Slippery algae on stones and old timbers; footwear with good grip or studs is recommended
  • Hidden snags: old ironwork, rubble and timber—use a weak link for leads
  • Some structures (lock gates, swing bridge) are out of bounds; obey all safety signage
  • Paths are broadly level from the car park, but cobbles and cambers make independent wheelchair access challenging; view points near the car park are the most accessible

Expect basic facilities: a car park, benches and heritage interpretation, but limited services on site. Bring what you need and plan for changing weather and light.

  • Parking at the harbour car park; check any posted gate times for evening sessions
  • No guaranteed public toilets at the harbour; nearest facilities are in Lydney town
  • No permanent café or shop on site; occasional mobile vendors at busy times—carry food and hot drinks
  • Nearest tackle and bait are in Lydney/Chepstow area; phone ahead for bait availability and opening hours
  • Mobile signal is generally workable but can be patchy; carry a charged phone and in an emergency call 999 and ask for the Coastguard

Treat this as a puzzle of channels and timing rather than a chuck‑and‑chance venue. Small adjustments to bait, lead and angle make big differences in flow this strong.

  • Walk it at low tide to visually map the main gut and side eddies; fish those lines on the next flood
  • Use wired grip leads with a weak link; if you’re rolling, go up a size or shorten snoods to cut drag
  • Ragworm tipped with a tiny sliver of mackerel can outlast crabs on lively tides without over‑masking scent
  • For mullet, keep noise and footfall low, trickle in mash little and often, and fish neaps with minimal hardware
  • Bass often show with the first proper push of colour over the edge—be ready 2 hours before high
  • Keep gear tidy: when the bore or a debris raft comes through, you want to lift and step back quickly
  • This is a heritage site—keep off the lock gates and swing bridge, and be courteous to walkers and photographers

The harbour sits within the Severn Estuary’s protected designations, and parts of the structure are off‑limits. Anglers must follow site signage, national sea fisheries rules and protected species laws.

  • Access and site rules
    • Expect no‑fishing/no‑access signs on lock gates, the swing bridge and potentially inside the inner basin—obey all on‑site instructions
    • The area is within SSSI/SPA/SAC designations; avoid disturbing birds and do not dig bait on saltmarsh or fragile habitats
  • Species protections
    • Bass (England, 2024): recreational retention typically allowed Mar–Nov (2 fish/day, 42 cm min); Jan–Feb and Dec catch‑and‑release only—check current DEFRA/MMO updates before your trip
    • European eel: release all eels alive; do not retain
    • Shad and lamprey: fully protected—return immediately if foul‑hooked or accidentally caught
    • Salmon/sea trout: do not target; a valid EA migratory fish licence is required to fish for them anywhere, with strict seasons and bylaws—release any hooked while sea fishing
  • General
    • Follow national minimum sizes and local IFCA/MMO bylaws; only keep what you will eat and record notable catches responsibly
    • Gloucester Harbour Trustees and Forestry England may issue local safety/byelaw notices—these take precedence on the day
    • Leave no trace: take all litter, line and bait wrappers home