Wetsuit Thickness Guide

Wetsuit thickness and budget – two key points to consider when selecting a wetsuit. But before you start thinking about the price, you need to know how thick your wetsuit should be, which can be determined by looking at how cold (or warm) the sea temperature is where you'll be surfing/swimming.

  • 0–8°C | 6mm / 7mm – deep winter warriors.
  • 8–12°C | 4mm / 5mm – the bitterly cold brave.
  • 10-14°C | 3mm / 4mm – crisp water comrades.
  • 14-18°C | 2mm / 3mm – seasonally smart surfers.
  • 18–26°C | Spring suit / 2mm – endless summer embracers.


  • Water temperature - 19°C
  • It’s about as thin as a wetsuit comes and will keep your body protected
  • Minimal exhaustion and no overheating
  • Boardshorts and a wetsuit top are also an option


  • Water temperature – 12-18°C
  • Can be worn in the winter depending how early into the colder months you’re going to be surfing
  • Can be worn in the summer – especially if in the UK or Ireland
  • Can be worn during winter in some spots around Europe

Hot tip: Refer to the water temperatures above to ensure that you can spend the most time in the water with a 3mm.


  • Water temperature - 10-12°C
  • Cold water surfing
  • Booties and gloves become an option


  • Water temperature – 8-10°C
  • Deep winter and cold-water surfing
  • Booties and gloves become a necessity
  • Wetsuit hoods become an option


  • Water temperature – 0-8°C
  • Extremely cold surfing conditions
  • Serious surfers who track winter swells
  • Booties, glove and hoods become a necessity

Click here to view our full range of wetsuits.


Published on 6th August 2018 in Guides

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