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6.1 · Estuary · Monmouthshire
Sudbrook sits on the Severn Estuary shoreline just south of Chepstow, with easy access from the village onto the sea wall and adjacent foreshore. Fishing is typically from the wall or across mixed mud/sand with patches of stone, and it’s very tide-driven with strong currents and big range; best results come around the flooding tide and into high water when the ground fishes cleaner. It’s a classic estuary mark for rays, dogfish and flatfish rather than constant sport, and it can be snaggy in places close in.
Today · Best available
Best available: 21:00-00:00 around the rising tide
Most likely species: Lesser Spotted Dogfish and Thornback Ray
Fair conditions. Best available around 21:00-00:00 around the rising tide, but no window reaches the strong threshold today. Good chance of Lesser Spotted Dogfish and Thornback Ray.
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
Wednesday looks better than today. Unlock the week to see its score and exact window.
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.
Premium unlocks exact windows, tactics and alerts.
Jump to towns around this mark for more marks and guides.
Explore nearby towns: Sudbrook · Portskewett · Caldicot · Rogiet · Caer-went
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.
Sudbrook is a classic Severn Estuary shore mark on the Monmouthshire side, best known for heavy tides, fast-flowing water and the chance of hard-fighting estuary species when the conditions line up.
Sudbrook sits on the Severn Estuary shoreline near Caldicot, with access typically via local streets down to the waterfront and sea wall areas.
This is predominantly an estuary/general shore venue where you tailor your approach to season, water temperature and the strength of the tide.
Sudbrook rewards straightforward, robust estuary tactics designed to hold bottom and present baits in strong flow.
The Severn Estuary is defined by powerful tides, and Sudbrook is no exception—tide choice and timing are central to fishing it safely and effectively.
This is a venue where the main hazards come from fast-rising water, soft mud and slippery weeded rock, so conservative decisions pay off.
Facilities are limited on the mark itself, so arrive prepared and treat it as a self-sufficient shore session.
Sudbrook often fishes best for those who keep things simple, fish safely, and let the tide dictate the approach.
Access and rules at estuary marks can change, and local restrictions may apply in specific areas (including any nearby structures or managed shoreline).
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