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Bristol

Cumberland Basin

6.0 · Harbour · Bristol

Cumberland Basin is the tidal entrance to Bristol’s Floating Harbour: deep, swirling water around lock gates, piers and vertical quay walls with strong currents on the flood and first of the ebb. It’s an urban mark with plenty of structure, lights at night and brackish water that draws mullet and bass, plus seasonal winter species. Fishing is from hard concrete with railings in places; expect sheer drops, moving bridges and occasional access restrictions when the locks are operating. Best results are typically on a rising tide into dusk or after dark, when fish patrol the walls, eddies and outflows. Light, sensitive tactics excel due to boat traffic and snags; heavier gear is needed if targeting conger near the structures. Parking and public access are close by, but take care with wet, algae‑greased surfaces and fast tide streams.

Should you fish Cumberland Basin?

55 Fair

Today · Best available

Best available: 03:00-06:00

Most likely species: European Eel and Bass

Fair conditions. Best available around 03:00-06:00, but no window reaches the strong threshold today. Good chance of European Eel and Bass.

W 3 mph Rain 0% High tide 00:42

Fishable, but pick your timing carefully.

Plan this mark

7-day fishing forecast for Cumberland Basin — 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.

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· 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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Cumberland Basin fishes like a brackish harbour-estuary pinch point rather than a normal open-coast venue. The key is movement: spring tide pushes, lock or sluice activity, eddies along vertical walls, and low-light patrol routes. It can produce flounder, mullet, bass, eels and seasonal winter species, but the best results usually come from tidy, mobile fishing close to structure rather than long casting.

  • Know whether to fish the wall edge, eddy or channel seam.
  • Time your session around spring pulses, not just tide height.
  • Pick the right setup for flounder, bass, mullet or eels.
  • Avoid wasting time in restricted or dead water.
  • Have a nearby fallback if lock activity shuts the session down.

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

Overall rating

6.0 /10

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

Category scores

Catch Potential 6/10
Species Variety 6/10
Scenery & Comfort 7/10
Safety 4/10
Accessibility 7/10

Flounder 8/10
Tip: Rag or lug on size 2-4, short cast to channel edges. Best last 2 hrs of flood and first of ebb. Muddy ground; use light grip lead in flow.
European Eel 7/10
Tip: Dusk into night. Worm or fish strip hard on bottom tight to wall or eddies. Simple running ledger; barbless for easy release.
Bass 6/10
Tip: Crab or rag baits, or small paddletails worked along walls. Fish the flood on spring tides near lock gates/outflow. 30 lb leader; expect snags.
Sand Goby 6/10
Tip: LRF: size 14-18 hooks with tiny rag/squid pieces. Fish tight to mud/sand margins on any stage; gentle lift-and-drop.
Mullet (Thick-lipped) 6/10
Tip: Bread flake under a clear float or freelined; chum mashed bread. Calm, clear water on neaps, top of flood around walls.
Mullet (Thin-lipped) 6/10
Tip: Summer. Tiny Mepps/spinner tipped with rag, slow retrieve in surface slicks on the flood. Stealth and 6-8 lb fluoro.
Common Goby 5/10
Tip: Micro hooks (16-18) and tiny worm baits around steps and wall toes at mid to high tide. Keep rigs simple and light.
Shanny 4/10
Tip: LRF near rocks/weed on the walls at mid tide. Tiny worm or crab baits; drop-shot or split shot just off the bottom.
Sprat 3/10
Tip: Winter evenings around lights. Small sabikis or size 6-8 feathers, slow lifts mid-water on the flood.
European Smelt 3/10
Tip: Late winter to early spring at dusk. Small silver spoons or sabikis near surface on the flood; slow retrieve.

Local knowledge

Cumberland Basin fishing guide

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

Cumberland Basin is the lock-and-basin complex at the western end of Bristol’s Floating Harbour, where the city meets the tidal River Avon. It’s an urban, deep-water venue that draws sea fish well upriver on big tides, with year-round opportunities for flounder, mullet, bass and nighttime conger. If you like easy city access, varied methods and surprise captures, this is a rewarding mark.

Set between Hotwells and the entrance to the River Avon, the Basin sits under the Brunel Way/Plimsoll Bridge with quays around Cumberland Road and the Nova Scotia. Access is straightforward, but some walls and working quays have restricted sections—always follow Harbour signage and staff directions.

  • General area: Hotwells side of the Floating Harbour around Cumberland Road, the Plimsoll Swing Bridge, and near the Nova Scotia (BS8 area).
  • Useful postcodes for sat nav: BS8 4UR (Nova Scotia/Hotwells quay), BS8 4RU (Underfall Yard side). These get you close—then walk the quaysides.
  • Parking: Limited pay-and-display on-street bays along Cumberland Road and side streets; small paid car parks around Underfall Yard/Wapping Wharf. Evenings can be easier but check time limits.
  • Approach: Level urban pavements and cobbles; very short walks once parked. Expect railings in places, bollards and mooring hardware.
  • Where to set up: Quays along the Basin itself, the Hotwells wall, and stretches facing lock entrances/outfalls when open. Do not fish from bridges, steps, ladders, lock gates, or any areas signed no fishing.
  • Terrain: Vertical quay walls, stone/cobbles, occasional low railings. A drop net is strongly advised for safe landing.

This venue mixes estuarine and harbour species, with sea fish pushing in strongest on bigger spring tides and warm months. Winter still produces, especially after dark.

  • Spring (Mar–May):
    • Flounder (resident, best on worm)
    • School bass (first arrivals on springs and mild spells)
    • Thick-lipped mullet starting to show on sunny days
  • Summer (Jun–Aug):
    • Thick- and thin-lipped mullet (bread/bash tactics)
    • Bass (schoolies with the odd better fish near flows and structure)
    • Conger eel at night along walls (catch-and-release recommended)
    • Silver eel present (European eel: protected—do not retain)
  • Autumn (Sep–Nov):
    • Bass (peak lure and bait sport on springs/dusk)
    • Mullet until the first real cold snap
    • Whiting and pouting pushing upriver on big springs after dark
    • Conger eel
  • Winter (Dec–Feb):
    • Whiting (best at night on springs)
    • Pouting/poor cod as bycatch
    • Flounder in steadier numbers
    • Occasional codling in cold snaps (hit-and-miss in recent years)
  • Occasional/Bycatch:
    • Pollack/coalie oddities on lures, smelt in cold months, and coarse fish (perch/pike/roach) within the Harbour—handle and release carefully if accidentally caught while sea fishing.

The Basin rewards versatility: light lure work along structure, delicate mullet approaches, and simple bottom rigs with quality worm or fish baits all score. Night sessions transform the fishing in colder months.

  • Bottom fishing:
    • Rigs: 2-hook flapper or 1-up/1-down with size 2–1 fine-wire patterns for flounder/whiting; running ledger with a strong size 2/0–4/0 for conger or a chance bass.
    • Leads: 2–4 oz is usually ample; bump up slightly if sluices/locks are running and creating flow.
    • Baits: Ragworm or lugworm for flounder/bass; small squid strips, mackerel or bluey for whiting/pout; peeler or soft crab in spring/summer for bass; whole mackerel or big fillets for conger after dark.
  • Lure fishing:
    • Soft plastics (2–5 inch paddletails/straight tails) in natural or pearl/pink; work them along quay edges, eddies and lit areas at dusk/night.
    • Surface/sub-surface hard lures for bass on warm, still evenings when sprats/sand smelt show.
    • LRF: tiny metals and isome-style worms along walls for oddities—expect snags.
  • Mullet tactics:
    • Bread punch/flake under a waggler or controller; loosefeed bread mash sparingly and fish fine (4–6 lb fluoro, size 8–12 hooks).
    • Small harbour rag or imitation bread on size 10–12 can also work when they're spooky.
  • Timing:
    • Dusk into dark boosts bass/whiting/conger. Bright, calm days are best for mullet; overcast/drizzly weather can help flounder.

Inside the Floating Harbour the water level is held fairly constant, but fish movement is strongly influenced by spring tides and lock/sluice operations that pulse saline water and bait in and out. Plan around activity rather than tide height alone.

  • Best tide states:
    • Larger spring tides (especially flooding/ebbing periods when locks operate) draw bass, whiting and conger into reachable areas.
    • Neaps can still fish for mullet and flounder when it’s quiet and clear.
  • Time of day:
    • Dusk to a couple of hours into dark is prime for bass/whiting/conger.
    • Late morning to afternoon on warm, bright days for mullet.
  • Seasonality:
    • May–October gives the broadest mix; mid-winter focuses on whiting/pout/conger and hardy flounder.
  • Weather/conditions:
    • The mark is relatively sheltered, but a stiff SW wind under the flyover can be turbulent; coloured water after rain often helps flounder/whiting but can dampen mullet sport.
    • After heavy freshwater spates, give it a tide cycle or two for salinity to rebound.

This is a working harbour environment with high walls, moving bridges and sudden water movements when sluices or locks operate. Treat edges with respect and keep clear of all operational areas.

  • Edges and drops:
    • Vertical quay walls with few low barriers—use a lifejacket, especially after dark or in wet conditions. Keep children well back.
    • Surfaces can be slimy with algae; watch for bollards, chains and mooring lines.
  • Operations and restrictions:
    • Do not fish from bridges, ladders, steps, or any lock gates/lock approach walls. Keep clear when bridges swing or vessels manoeuvre.
    • Expect sudden flow changes and surges when sluices open—secure your gear and rods.
  • Landing fish:
    • Carry a drop net; the wall height makes handlining or swinging fish unsafe and harmful to fish.
  • Personal safety:
    • Headtorch with spare batteries, grippy footwear, and avoid solo night sessions if unfamiliar.
    • Be courteous to residents and harbour users; Harbour staff may direct you to move—comply immediately.

Being city-centre, amenities are close by, though not always 24/7. Plan bait and toilet stops around opening hours.

  • Toilets: Public facilities around Millennium/Harbourside and Underfall Yard (check opening times). Pubs/cafés such as the Nova Scotia for patrons.
  • Food and drink: Hotwells and Wapping Wharf have cafés, bars and takeaways within a short walk.
  • Tackle and bait (check hours/phone ahead):
    • Veals (Brislington), Bristol Angling Centre (Fishponds/Eastville), Premier Angling (Bitton/Keynsham) for sea bait and tackle.
  • Other: Good mobile signal; street lighting in many areas; bins are limited—take all litter and line home.

Cumberland Basin rewards tidy, mobile tactics and attention to harbour rhythms. Treat it like a canal-meets-estuary and you’ll unlock patterns.

  • Bring a drop net and a long-handled disgorger/forceps; it saves fish and tackle.
  • A handful of fresh rag or quality lug outfishes frozen most days for flounder/bass; for winter whiting, small squid/mackerel cocktails are deadly.
  • When you hear/see locks or sluices running, have a lure or worm rig ready—predators patrol the resulting eddies.
  • Keep bread mash ultra-light for mullet; overfeeding kills the swim. Fish as fine as you dare.
  • Expect snags around chains and masonry—use weak links for leads or rotten-bottoms on rougher patches.
  • Events (e.g., Bristol Harbour Festival) can restrict or suspend angling access; check local notices before planning a big session.
  • Keep noise and lights low near apartments; it’s better for the fishing and the neighbours.

Rules here combine national sea angling law with Bristol Harbour byelaws. Regulations and signage can change—always check on the day and follow Harbour staff instructions.

  • Harbour/byelaws:
    • No fishing from bridges, ladders, steps, or any lock gates/lock approach structures; do not obstruct moorings or working quays. Observe all no-fishing signs.
    • Give absolute priority to commercial and recreational vessels and to Harbour operations; be prepared to move when asked by staff.
  • Licensing:
    • You do not need an Environment Agency (EA) rod licence to fish for sea species in tidal waters; however, the Floating Harbour is impounded water with coarse fish present. If you inadvertently catch coarse species, release them promptly. If you intend to target coarse fish, an EA licence is required.
    • Some harbour stretches may be subject to local angling permissions—check with the Bristol City Council Harbour Office before fishing new spots.
  • Species protections and sizes:
    • European eel and all shad species must not be retained (release immediately); do not intentionally target eels.
    • Bass: retention rules change annually. Check current UK government/MMO guidance before your trip. For reference, in 2024 the rule was a 42 cm minimum and a limited open season with daily bag limits; this may have changed.
    • Adhere to UK Minimum Conservation Reference Sizes (MCRS) for any retained sea fish; when in doubt, measure and release.
  • Closed seasons:
    • The river coarse-fish closed season (15 Mar–15 Jun) applies on rivers; the impounded Harbour may be treated differently. Check the EA’s latest maps and guidance for the local boundary between the Harbour and the River Avon.
  • Good practice:
    • Use barbless or crushed-barb hooks for mullet and catch-and-release sessions; never gaff fish from height. Take all litter and line home.