Surfer choosing a wetsuit

Wetsuits

is a 32 wetsuit enough for cold water the truth revealed!

By Anya Petrova

Published: 15 Feb 2025

Is a 3/2 Wetsuit Enough for Cold Water? Let's Dive In!

Okay, so picture this: I'm planning my first cold-water surf trip. Super stoked, right? Except...I'm clueless about wetsuits. I'd heard that a 3/2 might be sufficient and honestly, I wanted to believe that. A 3/2 is less bulky than the thicker ones, which sounded WAY more appealing for a beginner, like me. But was my naive optimism putting my well-being at risk? Would I come back from this trip with more than just awesome waves under my belt?

This is a question many surfers face. So I did what any self-respecting, slightly terrified surfer would do; I dove headfirst (figuratively, I didn't actually dive, you know, because of the whole 'cold water' thing) into research. And let me tell you, the world of wetsuit thickness is a confusing one. But trust me, this blog post is going to demystify it for you. Let's figure this out together.

Surfer in a 3/2 wetsuit in cold water

Surfer in a 3/2 wetsuit in cold water | Image: Supplied

Understanding Wetsuit Thickness: What Those Numbers Mean

First things first, let's crack the code of those numbers. A "3/2" wetsuit means the neoprene rubber is 3mm thick in the torso and 2mm thick in the arms and legs. The thicker neoprene provides more insulation where you need it most—your core—to keep you warm. Thinner neoprene in the limbs allows for better flexibility and range of motion. Simple enough, right? Well, not quite. The actual warmth provided by a wetsuit depends on a LOT of factors, not just the thickness.

Diagram showing wetsuit thickness measurements

Diagram showing wetsuit thickness measurements | Image: Supplied

Factors Beyond Thickness: The Cold Water Equation

So, it's not just about the neoprene thickness. Several things influence how warm you'll stay:

  • Water Temperature: Duh, this is a big one. A 3/2 might be perfectly fine for a 55-degree F day. But, you'll be shivering in that same suit in 40-degree F water. You need to research your specific location and the time of year carefully. I use this handy website to check the water temp (I'll link it below). Do your research!
  • Your Personal Tolerance: We're all built different. Some people get cold easily. Others seem immune to it! (I am NOT one of those people...if you're that person, I hate you.) Your own cold tolerance plays a huge role in selecting a suit that works for you.
  • Wetsuit Material: Not all neoprene is created equal. Some brands and types of neoprene offer superior insulation, even at the same thickness. You can't just focus on the number; look at the material too.
  • Fit: A wetsuit that fits perfectly is crucial for insulation. It traps a thin layer of water against your skin, which your body then heats up, which is better than that same layer of cold water being able to move easily around your body.
  • Suit Condition: Is that wetsuit you're planning on wearing brand spankin' new? Or has it seen better days and is pretty worn out? Old wetsuits lose their insulation over time, so keep that in mind!

My Experience (And Why I Regretted My 3/2)

So, I went with the 3/2. Against the advice of more experienced surfers who, trust me, were correct. My first cold-water surf was...brutal. I thought my fingers and toes might actually fall off and I would have to be taken to the hospital for severe hypothermia. Okay, maybe a slight exaggeration, but I was MISERABLY cold. I spent more time shivering on the beach than actually enjoying the waves. It sucked the joy right out of that whole trip. Let me assure you, there's no fun in being that cold.

Person shivering on a beach after surfing

Person shivering on a beach after surfing | Image: Supplied

The Verdict: Is a 3/2 Enough?

The honest answer? Maybe. But probably not. For most cold-water surfers, a 3/2 is insufficient for consistently chilly conditions. While a 3/2 might be appropriate for some situations with very mild temperatures, for comfortable and safe surfing in consistently cold water, you'll likely want a thicker wetsuit. My advice? Go for at least a 4/3. Your fingers, toes, and overall mood will thank you. Don't be like me. Don't make the same mistake.

Comparison chart of different wetsuit thicknesses

Comparison chart of different wetsuit thicknesses | Image: Supplied

Tips for Staying Warm in Cold Water

Even with a thicker wetsuit, there are other steps you can take to stay warmer in the water:

  • Use neoprene booties, gloves, and a hood. These add extra insulation to your extremities and help conserve heat.
  • Wear layers under your wetsuit. A thermal rashguard can provide extra warmth. But, don't wear too many layers, as it can restrict movement and make your wetsuit too tight.
  • Warm up before entering the water. A quick jog or some stretches get your blood flowing and increase your body temperature.
  • Get out of the water if you start to feel too cold. Cold water is serious business. Don't push it! Seriously. I know it sucks to leave, but hypothermia is never fun. Hypothermia is a real thing. I'm pretty sure I almost experienced it.
Surfer putting on wetsuit accessories

Surfer putting on wetsuit accessories | Image: Supplied

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