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4/3mm Wetsuits

4/3mm Wetsuits for UK Spring, Autumn & Cooler Conditions

4/3mm (4mm) wetsuits, are ideal for UK spring, autumn and cooler summer days. Offering a balance of warmth and flexibility, they’re best suited to water temperatures between 10–15°C. With a thicker core for insulation and more flexible panels in the arms and shoulders, 4/3mm wetsuits are one of the most versatile options for UK surfers looking to stay comfortable without sacrificing performance.

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Seasonal Wetsuit Advice

  • Wetsuit temperature thickness guide

    Which Wetsuit Thickness Should I Choose?

    What thickness is best for you? Don’t stress — we’ve got you covered! In this ultimate guide, we’ll walk you through everything you need to know.

  • Which Wetsuit Is Best For Which Season?

    Whether you're starting your surfing journey, swapping surf seasons or taking a trip, it can be tricky to work out which wetsuit you'll need!

  • Winter or Summer Wetsuit?

    When looking for a Wetsuit you should consider what time of year you want to use it. For example in the months of November to April, UK water temperature will range from 15ºc down as low as 5ºc.

  • 6 Best Wetsuits for Spring

    We’ve picked out 6 of the best spring wetsuits, each with its own unique features. Let’s break down the coolest, comfiest, and most stylish spring suits.
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Whats The Best Wetsuit For All Year Round Use In The UK

If you can only afford one wetsuit, whats the best wetsuit for using all year round? The Wetsuit Centre crew give you some advice on the best wetsuit for every season.

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What Thickness Wetsuit Do You Need? A Guide To Wetsuit Thickness

Jeff from the Wetsuit Centre talks you through all the wetsuit thickness options, and which one will suit you.

Choosing the Right 4mm Wetsuit

A 4mm wetsuit is designed for cooler water conditions where you still need flexibility for performance.

  • 10–15°C water temperatures – Ideal for UK spring and autumn
  • 4/3mm construction – Warm core with flexible arms
  • Longer sessions in cooler conditions
  • More versatile than 3mm or 5mm wetsuits

If you want one wetsuit that covers most of the UK surf season, a 4mm wetsuit is often the best choice.

Why Choose a 4/3mm Wetsuit?

4/3mm wetsuits are one of the most popular options for UK surfers due to their versatility.

  • Warmer than a 3mm wetsuit without feeling bulky
  • More flexible than a full winter 5mm wetsuit
  • Suitable for a wide range of conditions
  • Ideal for regular surfers who go out year-round

Key Features to Look For

When choosing a 4mm wetsuit, focus on warmth and flexibility:

  • Glued & blind-stitched seams – Reduces water entry
  • Thermal linings – Retains body heat
  • Stretch neoprene – Improves paddling and comfort
  • Chest zip entry – Better seal and reduced flushing

4mm Wetsuit FAQs

Is a 4mm wetsuit warm enough for the UK?

Yes, a 4mm wetsuit is ideal for UK spring and autumn, typically in water temperatures between 10°C and 15°C.

What does 4/3mm mean in a wetsuit?

4/3mm refers to the thickness of the neoprene, with 4mm through the body for warmth and 3mm in the arms and legs for flexibility.

Should I choose a 4mm or 5mm wetsuit?

Choose a 4mm wetsuit for milder cold conditions and flexibility. For winter surfing in colder UK temperatures, a 5mm wetsuit is usually better.

Explore More Wetsuit Options

Looking for different conditions? Browse our full range of wetsuits, including 3mm wetsuits for warmer water and 5mm wetsuits for winter surfing.