How to Choose a Wetsuit for Surfing in Cornwall
Choosing the right wetsuit is about more than simply buying the thickest suit you can find. Fit, neoprene quality, lining, seams, entry system, how much you feel the cold and how long you normally surf all make a difference.
Modern wetsuit technology has also changed what many surfers can comfortably wear through a Cornish winter. At Adventure Bay Surf Shop in Saltash, near Plymouth, we prefer to help surfers choose the right level of warmth and flexibility for them rather than automatically recommending the thickest suit.
What wetsuit thickness do you need in Cornwall?
There is no single answer for every surfer, but these are useful starting points for surfing around Cornwall and the South West.
3/2mm wetsuits
A 3/2mm is a versatile choice for warmer water and is commonly used through the milder part of the year. A good 3/2 gives plenty of flexibility while still providing useful warmth.
4/3mm wetsuits
A 4/3mm gives more insulation while retaining good flexibility. Modern neoprene, thermal linings, improved seams and better entry systems mean today's higher-quality 4/3 wetsuits can perform far beyond what older suits of the same thickness could.
For many surfers in Cornwall, a good hooded 4/3mm can be a very capable winter wetsuit. The integrated hood reduces heat loss around the head and neck, while the slightly lighter suit can offer greater freedom of movement than a thicker winter suit.
This is an option we particularly like for surfers who value flexibility, surf regularly and don't naturally feel the cold too badly. Individual comfort varies, so there is no universal winter thickness for everyone.
5/4mm wetsuits
A 5/4mm remains an excellent option when you want another step up in warmth. We see it as the warmer winter choice rather than an automatic requirement for every Cornish surfer.
A 5/4 can make sense if you feel the cold, regularly have long sessions, surf through the coldest spells of winter or simply prioritise maximum warmth over the extra flexibility of a lighter suit.
On the coldest days, that additional insulation can be very welcome. The important point is to choose according to your own surfing rather than assuming everyone needs the same thickness.
Why wetsuit technology matters
Thickness alone doesn't tell you how warm a wetsuit will be. Two 4/3 wetsuits can feel very different in the water.
Modern suits use increasingly flexible neoprene or neoprene alternatives, improved thermal linings, better seam construction and entry systems designed to reduce flushing. A well-designed suit that fits correctly can retain heat extremely effectively without relying purely on additional millimetres of material.
When comparing wetsuits, look at the whole construction rather than treating 4/3 or 5/4 as the complete specification.
Hooded or non-hooded?
An integrated hood can make a substantial difference in cold conditions. It provides continuous coverage around the head and neck and can help reduce flushing compared with adding warmth elsewhere while leaving the head exposed.
That is one reason we think modern hooded 4/3 wetsuits deserve serious consideration for winter surfing in Cornwall. For surfers who dislike wearing an integrated hood all the time, a non-hooded suit combined with a separate hood can offer more versatility.
Fit is as important as thickness
A wetsuit needs to fit closely enough to limit water movement without restricting breathing or movement. Large gaps, folds or a loose neck can allow repeated flushing and make a thick suit feel colder than a well-fitting lighter one.
Different brands also fit differently. Your normal clothing size is useful as a starting point, but height, chest, waist and body shape all matter. If possible, try a wetsuit on and move your shoulders and arms as you would while paddling.
We stock Men's Wetsuits, Women's Wetsuits and Children's Wetsuits, with different cuts and sizes available.
Do you need wetsuit boots and other winter accessories?
Boots can make a big difference once the water and air cool down, particularly for longer sessions. Gloves and hoods can also extend comfort in winter without necessarily requiring you to jump immediately to the thickest possible wetsuit.
Your ideal setup might therefore be a hooded 4/3 with suitable boots, or a warmer 5/4 setup if you feel the cold more strongly. Think about the complete system rather than the suit in isolation.
Shop Wetsuit Boots & Water Shoes
How long do you normally surf?
A surfer who spends 45 minutes in the water has different warmth requirements from someone who regularly stays out for three hours. How active you are matters too: constant paddling and surfing generates more heat than spending long periods sitting still.
Be realistic about your sessions, the conditions you choose to surf and your personal tolerance to cold when deciding between suit thicknesses.
So, is a hooded 4/3 warm enough for winter in Cornwall?
For many surfers, a high-quality modern hooded 4/3 can be a very good winter option in Cornwall. It offers a compelling combination of warmth, flexibility and freedom of movement. It won't be the right answer for everybody or every day, however.
If you're particularly sensitive to cold, surf for long periods or want extra insulation for the coldest winter conditions, a 5/4 is a sensible step up. Rather than thinking of 5/4 as compulsory winter equipment, think of it as the warmer option available when your body, sessions or conditions call for it.
Need help choosing a wetsuit?
Visit Adventure Bay Surf Shop in Saltash, Cornwall, close to Plymouth, and we can help you compare fit, thickness and construction. Tell us when you surf, how long your sessions normally last and whether you tend to feel the cold, and we'll help you find a suit that makes sense for you.
Our winter wetsuit range is still growing, so we'd rather give you useful advice than pretend every possible option is currently sitting on the rail. As new winter suits arrive, we'll continue adding them to the range.