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6.7 · Harbour · Cornwall
A small, sheltered harbour on the west side of St Austell Bay. Angling is from the curved outer wall and adjacent rocks into mixed sand and rough ground, with shallow water inside the basin and slightly deeper water off the outside. Best results come on a flooding tide into dusk or after dark, especially outside the peak swimming hours of summer when fishing on or inside the wall may be restricted. Summer brings mackerel, garfish and scad; thick‑lipped mullet cruise the inner harbour; wrasse and pollack work the rough ground; and flatfish and small dogfish show over the sand. Space is limited, the stones can be slippery with weed, and an easterly swell can make the wall awkward, but the spot is scenic with parking and amenities close by.
Today · Best window
Best window: 06:00-09:00 around the rising tide
Most likely species: Ballan Wrasse and Mackerel
Good conditions. Best around 06:00-09:00 around the rising tide. Good chance of Ballan Wrasse and Mackerel.
Worth fishing if you can hit the best window.
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
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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.
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Choose when you're free and what you want to catch. We'll show the best tide, weather window and method for this mark.
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Jump to towns around this mark for more marks and guides.
Explore nearby towns: Polkerris · Par · Tywardreath · Fowey · St Blazey
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.
Polkerris Harbour Wall is a small, sheltered granite pier guarding a sandy cove on Cornwall’s south coast between Par and Fowey. It is a friendly, comfortable mark with summer sport for mackerel, garfish, wrasse and mullet, plus scad and conger after dark when the crowds thin.
Tucked in St Austell Bay, Polkerris is reached on narrow lanes and has a pay-and-display car park above the village. The harbour wall sits at the western side of the cove and is reached via the beach and slipway. In peak season the beach is busy and access space on the wall can be limited.
A compact harbour that fishes like a classic south-coast pier: wrasse and pollack around structure, mackerel and garfish in summer, and mullet mooching the inner water. After dark, scad and conger become realistic targets.
Simple, efficient approaches score best here; travel light and adapt to the tide and footfall on the wall. LRF and float tactics shine in daylight; bait and metals cover dusk into darkness.
The cove is sheltered from prevailing westerlies, making it a good option in breezy weather. Easterly winds and swell push into the bay and can make the wall unfishable.
This is a family beach and watersports venue; be courteous and fish only where and when it is safe to cast. The wall can be slippery and waves can overtop on big easterly swells.
For a small cove, facilities are excellent, especially in summer. Expect crowds on fine days, with quieter evenings outside school holidays.
Treat it like a small, busy pier: fish light, be mobile, and time your sessions to avoid beach traffic. Evenings are often when the mark comes alive.
Harbour use and inshore fisheries rules apply here; always check the latest signage on site and current IFCA/MMO notices before you retain fish.
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