A new coastline to explore
5 coastal counties now covered: Kent, East Sussex, West Sussex, Hampshire, and the Isle of Wight.
6.1 · Beach · Carmarthenshire
Porth Tywyn is a small open-coast shingle/sand bay on the Carmarthenshire shoreline with low rocky edges and rougher ground close in, giving a mixed beach-and-reef style of fishing. Access is straightforward from nearby parking and a short walk onto the shore; most anglers fish the cleaner middle on bigger tides for flatfish and school fish, or work the rocky margins and adjacent rough for bass and wrasse in calmer conditions.
Today · Best window
Best window: 03:00-06:00 around the rising tide
Most likely species: Bass and Lesser Spotted Dogfish
Good conditions. Best around 03:00-06:00 around the rising tide. Good chance of Bass and Lesser Spotted Dogfish.
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 13–19, 2026
Local tide times
Monday 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: Burry Port · Pwll · Pembrey · Trimsaran · Llanelli
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Forecast tuning currently supports Bass and Mackerel — more species are on the way.
Fish forecast key
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.
Porth Tywyn is a small, open-coast beach mark on the Carmarthenshire shoreline that can fish well for classic South Wales species when conditions line up. It’s the sort of place where water colour, surf height and tide timing matter more than fancy tackle—get those right and it can be a very rewarding session.
Porth Tywyn sits on the Carmarthenshire coast and is approached as a beach mark rather than a harbour or rock platform. Access is generally straightforward, but like many smaller Welsh coves and beaches it can involve soft sand, steep paths, or short walks depending on where you park.
This is a typical Carmarthenshire surf venue where you’re mainly targeting bottom-feeding species that patrol close in, especially when there’s a bit of colour in the water. Seasonal runs vary year to year, so treat species as “likely” rather than guaranteed.
Porth Tywyn is best approached with solid, simple surf tactics: fish baits on the bottom, cover ground, and adjust to how the sea is behaving. If you can identify a gutter or a rip line, you’ll usually do better than sitting anywhere on featureless sand.
Like most exposed beaches in this part of Wales, Porth Tywyn tends to improve with a bit of movement and colour, and it can be hard work in bright, clear, flat conditions. Tide state influences how much beach you have and where the fish patrol, so plan around both fishing and safe access.
This is a straightforward beach mark, but it still demands respect—surf, soft sand, and rapidly filling gullies can catch people out. If you’re fishing into darkness, take extra care with navigation back off the beach.
Facilities around smaller coastal marks can be limited and can vary seasonally, so plan to be self-sufficient. Even where there are nearby villages, amenities may close early outside peak months.
Fishing Porth Tywyn well is mostly about reading the beach and not being afraid to move. A short walk to find a proper gutter or a seam of coloured water is often the difference between a blank and a few fish.
There is no single, universally applicable ban known for this mark, but Welsh shore venues can be affected by local byelaws, seasonal restrictions, and protected-area rules. The correct position can change over time, so treat this as a “check before you fish” venue rather than assuming.
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5 coastal counties now covered: Kent, East Sussex, West Sussex, Hampshire, and the Isle of Wight.
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