A new coastline to explore
5 coastal counties now covered: Kent, East Sussex, West Sussex, Hampshire, and the Isle of Wight.
6.7 · Beach · Hampshire
Southsea Castle is an easy-access shingle and sand shore mark beside the promenade, with short rocky groynes and sea-defence edges adding close-in structure. It fishes best around moving water, with summer pelagics and bream close in, while evening and cooler-season sessions can produce flatfish, rays and smaller species; expect busy promenades in fair weather.
Today · Best window
Best window: 06:00-09:00 around the rising tide
Most likely species: Mackerel and Garfish
Fair conditions. Best around 06:00-09:00 around the rising tide. Good chance of Mackerel and Garfish.
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 13–19, 2026
Local tide times
Stop guessing when to fish this mark. Unlock the week to see every score and exact window.
Fishing rating
Forecast pending. Check back after the next update.
Forecast updated. Details will appear shortly.
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.
Premium forecast
Unlock exact best windows, tactics and backup options for this mark.
Premium
Your real week — scores and exact windows are Premium.
Best side and tide stage
Species tactics and backup plan
One Premium plan unlocks forecasts, mark insights and trip planning across the site.
£3.99/month • Cancel anytime • Secure checkout by Stripe
Keep this mark and date ready
Sign in to continue. Signing in won't charge you, and you'll review Premium before Stripe.
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: Gosport · Portsmouth · Seaview and Nettlestone · Pondwell · Ryde
Zoom and pan to explore access points and nearby marks.
Jump to guideMap filters
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.
Southsea Castle is a convenient urban Solent shore mark, combining shingle beach, sea-wall frontage and patches of hard ground around the historic defences. It can produce varied summer fishing, but it is a busy public waterfront and anglers need to choose quiet periods and fish considerately.
The mark is on Southsea seafront beside Southsea Castle, with the beach and promenade immediately seaward of the historic site. It is straightforward to reach on foot from the seafront, but parking and pedestrian traffic can be significant.
Southsea Castle offers typical inshore Solent species, with the exact mix changing sharply with season, water temperature and the amount of colour in the sea. Mackerel and other summer pelagics are often the headline fish, while bait fishing can turn up a broader range.
A simple beach set-up covers most fishing here, while a light spinning outfit is useful when shoals of mackerel or garfish are within range. Match the method to the available room and never cast across a busy promenade or bathing area.
The mark is governed by Solent tide flow and can change character quickly as the water rises over the lower beach and hard ground. A moderate, moving tide is usually more productive than complete slack water, but the safest and fishable state depends on swell, wind direction and the exact spot.
This is an urban mark with good nearby paths, but it is not hazard-free: hard sea defences, shingle, tide surge and public activity all demand care. Safe casting space matters more here than maximum distance.
Southsea is well served for an urban fishing trip, with food, toilets and shops available within the wider seafront area. Availability and opening hours vary by season, event days and time of day.
The most successful approach is to treat Southsea Castle as a timing-and-location mark: arrive when there is room, inspect the water, and fish the clearest safe lane available. Small adjustments in position can make a major difference where shingle, stone and tide runs meet.
Fishing access around Southsea Castle can be affected by local seafront controls, beach-use restrictions, events and the operating rules of the historic attraction. There is no safe assumption that every part of the visible waterfront is available for fishing at every time.
Search
Your account
Use Google or a secure email link. Signing in won't charge you.
Signing in only creates or opens your account. You will review Premium and its price before any secure Stripe checkout.
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.