Grey seals on the Dorset Coast: Why Winter is the Best Time to spot Them

Winter is one of the most rewarding times to look for grey seals on the Dorset coast, not only because the colder months bring them closer to shore but also due to the shifting behaviour of the wider marine ecosystem. As stormy seas push fish and other prey species into shallower waters, seals follow — and with fewer visitors on the beaches, they are more likely to haul out on quiet stretches of coastline to rest and conserve energy. Wildlife groups across the region report that winter sightings are becoming more frequent, offering a rare chance for residents and visitors to observe these charismatic animals without disturbing their natural routines...

A grey seal (Image: Sarah Hodgson)

Why seals come ashore in winter

The UK is home to more than a third of the global grey seal population, estimated at 120,000–162,000 individuals, and while major colonies are found further north, sightings of grey seals on the Dorset coast are increasing. According to the Dorset Wildlife Trust’s grey seal information, seals have been recorded between Lyme Regis and Christchurch.

From November to March, grey seals come ashore to moult after the autumn pupping season. This natural process involves shedding their old fur and whiskers and developing a fresh, waterproof coat. Because winter beaches tend to be quieter, the chances of seeing hauled-out seals are often higher.

Named seals help researchers track behaviour

Although conservation teams usually identify seals by their natural markings, a few long-observed individuals have been given names to help monitor their movements. The Dorset Wildlife Trust has documented seals such as Fiver, identified by a distinctive “£5-shaped” pattern on her neck, and Molar, a female whose movements link Dorset with Cornwall.

You can read more about these individuals in the Dorset Wildlife Trust’s Dorset Seals project and in this ITV News report on Molar.

Having named seals helps researchers track behaviour, assess return visits and understand how far seals travel along the coast.

Where to see grey seals on the Dorset coast

Sightings are most common around Portland Bill, Durlston, Kimmeridge and the Purbeck coastline, although seals may appear anywhere along Dorset’s shores. Their long, dog-like snouts and distinctive resting “banana pose” make them relatively easy to recognise. More details can be found on the Dorset Wildlife Trust’s grey seal page.

Climate-related winter storms have increased risks for young pups, with some seasons described as “almost disastrous” by conservation organisations. The British Divers Marine Life Rescue has also reported a rise in seal-related callouts in recent years.

How you can help protect Dorset’s seals

If you spot grey seals on the Dorset coast, you can support conservation efforts by submitting sightings and photographs to the Dorset Seal Catalogue. These public reports help researchers build long-term records and identify individual seals.

Another way to contribute is by supporting the Dorset Wildlife Trust’s seal adoption scheme, which funds vital conservation and education work.

When watching seals, stay well back, keep dogs on leads and avoid sudden movements or loud noises. Never try to feed or approach a seal. Good wildlife etiquette helps ensure these remarkable animals continue to thrive along Dorset’s coastline.

Hambledons: Here to help

You can explore our other blog posts here. If you need a dependable, local team to manage your garden or outdoor projects, we’re here to help. Whether it’s fencing and gates, hedge work, replacements, maintenance, planting, or instant hedges, our Dorset-based team delivers quality workmanship and friendly service. See our full range of services here.