A new coastline to explore
5 coastal counties now covered: Kent, East Sussex, West Sussex, Hampshire, and the Isle of Wight.
Gloucestershire has 40 shore marks rated for flounder. They're ranked below by how strongly flounder show at each spot, with today's live conditions beside every mark — so you can pick a spot that's worth fishing right now, not just on paper.
When to go
Out of season — best Oct–MarBest months: Oct–Mar · green months are prime, the outlined box is this month.
Tide Fish the flood
Time of day Daylight sessions fish best
Ranked by how strongly flounder show at each mark. The chip on the right is today's live fish forecast.
Rag or lug tipped with crab on long snoods; cast to gutter edges and mud channels. Best last 2 hrs of flood and first of ebb, autumn–spring.
Short casts with rag/lug on size 2 flappers to the mud margins; best late winter–spring on neaps. Bites as the tide eases either side of high.
Ragworm or crab baits; cast 10-30 m into muddy gutters on a making tide. Use grip leads and long snoods; best late autumn to spring on neaps when flow is manageable.
Top quarry on the muddy channels. Ledger ragworm or peeler crab. Fish 2 hrs before to 1 hr after HW on neap–mid tides; cast to run-off edges with long snoods.
Short casts into channels; rag or lug on small hooks. Slow retrieve or twitch baits. 2-3 hours either side of HW; winter-spring best; expect slack-water bites.
Fish 2h before to 1h after high on big tides; ledger lugworm or peeler along channel edges; 4–5oz grip lead to hold in strong flow; avoid soft mud.
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.
Ragworm or peeler on long snood; cast to channel edges and gullies on the flood and first of the ebb. 5–6oz grip leads needed in tide. Best late autumn to spring.
Flood and first of ebb over muddy channels; lug or rag on size 2–4 with attractors; 5–7oz grip leads to hold Severn flow. Cast to channel edges. Best late autumn–spring.
Winter–spring staple. Fish close-in along muddy gullies on flooding tide; size 1 hooks with ragworm or crab. Best on neap tides; move with the tide. Avoid the Bore surges.
2-hook flappers with lug/rag or small peeler. Cast to gutter edges; best last 2 hrs flood and first of ebb. Use 5-6oz grip leads to hold in tide; beads help in coloured water.
Muddy banks and gutter mouths; lug or rag tipped with fish on strong grip leads. Fish last 2 hrs of flood and first of ebb when flow eases. Best autumn–spring; many bites close in.
Ragworm or maddies on 2–3 hook flappers; fish creek mouths and gutters last 2h of flood and first ebb; best Oct–Mar; short casts onto soft mud.
Ragworm or lug tipped with crab on a long trace; cast short across the channel on the flood and first of the ebb; late autumn–spring. Gripless leads let bait wander.
Rag or lug on a long flowing trace; cast short to muddy margins. Best on neaps and the last of the ebb/slack; winter-spring.
Fish the edges on the flood and first ebb. Ragworm or lug on long snoods, size 2–4 hooks. Late autumn–spring; night often better in the coloured water.
Autumn–spring. Ragworm or lug tipped with mackerel; cast short into gutters at top of tide. Light grip leads; inch baits slowly along the mud to find fish.
Ragworm or lug on long traces with flat leads; target channel edges on neap tides; winter–spring; keep rigs pinned in the flow.
Year-round, best late autumn-winter. Rag or lug on size 2 flappers; cast short into gutters at mid-flood on neaps. Keep baits static with 5-6oz grips.
Lug/rag or crab pieces on a 2-hook flapper. Target muddy gullies on the first of the flood and last of the ebb. Short casts from the slipway or wall.
Nov–Mar. Rag or lug on a long-snood flapper, cast to the channel edge on the flood; leapfrog upriver with the tide. Best on neaps when flow is manageable; light grip leads help hold bottom.
Ragworm or crab on long snoods in eddies and gutters from mid to high water; winter–spring best. Short casts along muddy margins on neaps.
Mud/silt channels; small rag/maddies or lug on size 2–4. Short casts to channel edges on the flood, late autumn–spring. 4–5oz gripper to hold in strong flow.
Lug or rag tipped with crab on a running ledger; fish channel edges from Frampton Pill on the last 2 hrs of flood and first of ebb. Use grip leads to hold in the fierce tide.
Neap floods in winter–early spring. Short casts to muddy gutters/edges with size 2–4 hooks and rag or lug. Keep baits still as tide races.
Plus 15 more rated marks — browse every mark in Gloucestershire.
Planning ahead? The live fish forecast map compares these marks across the week.
Top baits, best first
Rigs that work, best first
Full tactics, seasonal detail and more baits are on the Flounder species guide.
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New region just landed
We’ve added a whole new stretch of coastline — from Kent round to Hampshire and the Isle of Wight.
5 coastal counties now covered: Kent, East Sussex, West Sussex, Hampshire, and the Isle of Wight.
Every mark comes with a full guide, target species, baits and rigs, and live fishing forecasts.
Weather, tide, and sea conditions are already synced for every new mark, so you can plan a session right away.