Sea swimming in Brighton

Currents, tides and lifeguards

Brighton's beach is steep shingle, and the council describes the main currents as lateral: they carry you east or west depending on the tide, not straight out. Its advice is to swim parallel to the shore, stay in your depth, and if a current pulls you along, stay calm and swim diagonally to the nearest point of beach.

• Check the tide times (VisitBrighton has them) and know when it is a spring tide. The council says currents are extremely strong then.
• Brighton has what the council calls a severe shore-dump: the first wave onto the beach is powerful. Strong onshore wind at high tide can make it hard to get in and out.
• Offshore (northerly) winds flatten the water but can sweep you out to sea.
• Stay away from piers and groynes, which have fixed currents. The council has a notice about a deep scour hole beside the groyne 130 metres east of Palace Pier.

Lifeguards are seasonal. In 2026 the RNLI patrolled Dukes Mound, both Palace Pier beaches, West Street, West Pier, Hove Lawns and King Alfred from 23 May to 6 September, with Saltdean, Rottingdean and West Hove added from 18 July. Swim between the red and yellow flags when they are out. Outside the season there is no lifeguard service. In an emergency, phone 999 and ask for the coastguard.

Cold water shock

The RNLI defines cold water as 15°C and below and says the average UK and Irish sea is 12°C. Brighton's sea is below 15° for seven months of the year on average (see sea temperature by month). On entering cold water, the skin cools suddenly, which causes an involuntary gasp, breathing that can speed up uncontrollably, and a heart working harder against higher blood pressure. The RNLI says this can cause heart attacks, even in young, healthy people, and that the initial effects pass in less than a minute.

If you end up in the water unexpectedly

1. Take a minute. Don't try to swim straight away.
2. Lean back and tilt your head so your ears are under the water. Spread your arms and legs out, and gently move your hands if you need to. It is fine if your legs sink.
3. Breathe normally and wait for your breathing to come under control.
4. Then call for help or swim to safety.

If you're planning a dip

• Go with a friend, to a spot you both know, and tell someone where you'll be and for how long.
• Enter slowly. The RNLI suggests splashing water on your arms, neck and face first.
• A wetsuit is the safest option, since it adds buoyancy and lowers the chance of cold water shock. A dip is a few minutes, not a swim.
• Skip alcohol. The council says even a small amount speeds up hypothermia in cold water and distorts your sense of what you can handle.
• Afterwards, dry off quickly, change out of wet layers, layer up, and have a warm drink. The RNLI says foil blankets don't work for swimmers.

What to bring

The council's shingle advice and the RNLI's kit list line up. Footwear matters most in Brighton: the beach is steep and stony, and entry can be awkward with a shore-dump running.

• Booties or sea shoes. The council recommends them for the steep shingle. Beach Box Spa lists sea shoes as essential, and Luna Hut Sea Lanes says to bring flip-flops for the pebbles.
• A wetsuit, plus gloves and boots when it's cold (RNLI kit list).
• A bright swim hat and a tow float so you're easy to see.
• A phone in a waterproof pouch, so you can call 999.
• A big coat or dry robe, a changing mat and a warm drink for afterwards. The council adds a hot water bottle in winter.

Where people dip

This guide doesn't rank beaches, because the water quality and conditions that matter change by the day. What can be sourced: the five official bathing waters in the table, the lifeguarded beaches listed above in season, and the two saunas that put you directly on the shingle.

Both sit on Madeira Drive on the Kemptown seafront. The checks above apply to them like anywhere else.

Pairing it with a sauna

The usual shape is rounds: warm up in the sauna, cool off, rest, repeat. At Beach Box the cooling options are the sea, a cool plunge pool and a chilled steel tub, all included in a session. That helps on days when the sea is the wrong call: an alert on the SAS app, a red flag, big surf, or just not in the mood. The plunge pool gives you the cold without the sea's variables.

Treat a sea dip after a sauna like any other: enter slowly, keep it short and stay within your depth. If you have a heart or blood pressure condition, or you're pregnant, talk to your GP before combining heat and cold. Details of how a session runs are in the first-timer guide, and the full Brighton & Hove list shows every venue with a cold plunge or ice bath.

Questions

Sources

• Environment Agency: bathing water classifications 2025 Source for the five ratings in the table.
• Environment Agency: bathing water quality profiles Per-beach profile, sample results and pollution risk forecast.
• Surfers Against Sewage: sewage map and alerts app Safer Seas & Rivers Service and the Live Sewage Map.
• Brighton & Hove City Council: sea swimming safety Currents, shore-dump, groynes, alcohol, 48 hours after rain, footwear.
• Brighton & Hove City Council: lifeguards 2026 season dates, patrolled beaches, flags.
• RNLI: cold water shock
• RNLI: top tips for cold water dips Float to Live, kit list, warming up.
• VisitBrighton: tide timetables

Compare venues

• Beach saunas in BrightonThe saunas with direct sea access, side by side.
• Cold plunge and ice baths in BrightonWho has a plunge, an ice bath or the sea.
• Brighton sauna pricesEvery shared session price in one table, with the median.

More guides

• Brighton sea temperatureLive reading and the average for every month.
• Your first sauna in BrightonWhat happens, what to bring, what it costs.
• Sauna etiquetteWhat to wear, towels, silence, Aufguss.
• All Brighton & Hove guidesSea, safety and sauna manners.
• All Brighton & Hove saunasPrices, sea dips, cold plunges.