How to Choose Wetsuit Thickness for Surfing
By Volcom® | Skate, Surf & Swimwear, Snowboarding Clothes ... | Published: 2026-10-24
Category: Buying Guides
Learn how to match wetsuit thickness to water temperature and session length. This guide covers 2/2mm and 4/3mm options for spring and full wetsuits.
Quick answer
Match wetsuit thickness to the water temperature you surf most often: a 2/2mm spring wetsuit for warm water (65–75°F) and a 4/3mm full wetsuit for cool to cold water (50–65°F).
Why thickness matters for surfing
Wetsuit thickness determines how much insulation you get. Thicker neoprene traps more warm water against your skin, keeping you comfortable longer in cold conditions. But thicker suits also restrict movement and add buoyancy, which can affect paddling and duck diving.
The trade-off is simple: warmth vs. flexibility. A 2/2mm suit is light and stretchy for active sessions in warm water, while a 4/3mm suit provides the warmth you need for early morning or winter surf without sacrificing too much mobility.
Water temperature as your guide
Water temperature is the most reliable starting point. If you surf in tropical or summer conditions (above 70°F), a 2/2mm spring wetsuit or even a rashguard may be enough. For temperatures between 55–65°F, a 4/3mm full wetsuit is the standard choice. Below 55°F, you may need a 5/4mm or thicker suit, plus boots and gloves.
Session length also matters. If you surf for two hours or more in cool water, a thicker suit will keep you warmer longer. For quick sessions in warmer water, a thinner suit dries faster and is easier to take off.
Spring vs. full wetsuit design
A spring wetsuit (like the 2/2mm) has short or long sleeves and legs, but is cut thinner and often has fewer panels. It's designed for warmer conditions where you need some protection from the sun and mild chill, not heavy insulation. It's also easier to pack and dry.
A full wetsuit (like the 4/3mm) covers your entire torso, arms, and legs. The chest zip design on many models, including the Men's 4/3 Modulator, helps seal out water and makes it easier to get in and out of the suit. Full suits are built for all-day sessions in cooler water.
How to choose your wetsuit thickness
- Check water temperature: Use a reliable source (local surf report, thermometer) to find the average water temperature for the season you surf most. If you surf year-round, you may need two suits: a thin spring suit for summer and a thicker full suit for winter.
- Match thickness to temp range: Above 70°F: 2/2mm or thinner. 60–70°F: 3/2mm. 50–60°F: 4/3mm. Below 50°F: 5/4mm or thicker. A 4/3mm wetsuit is the most versatile for cool-water surfing in most regions.
- Consider session length and activity: Longer sessions in cool water need more insulation. If you paddle hard and generate body heat, you can often wear a slightly thinner suit than the temperature alone suggests. Test your suit in the water for 30 minutes before committing to a thickness for the season.
Wetsuit options for different conditions
- Women's 2/2 Modulator Long Sleeve Spring Wetsuit: Powered by superstretch jersey, the Women's 2/2 Modulator Long Sleeve Spring brings freedom and flexibility to every paddle and pop-up. This lightweight suit is ideal for warm-water surfing where you need maximum range of motion and fast drying between sessions.
Women's 2/2 Modulator Long Sleeve Spring Wetsuit - Men's 4/3MM Modulator Chest Zip Full Wetsuit: Superstretch jersey feels soft and fast-drying with a chest zip that locks in comfort. The 4/3mm thickness provides reliable warmth for cool water, while the stretch fabric keeps paddling and pop-ups unrestricted.
Men's 4/3MM Modulator Chest Zip Full Wetsuit
Which wetsuit thickness fits your surfing?
Best for
- Warm-water surfers (65–75°F) who want a lightweight, flexible suit for active sessions
- Cool-water surfers (50–65°F) who need reliable warmth for dawn patrol or winter swells
Not for
- Surfers in water below 50°F who need a 5/4mm or thicker suit with boots and gloves
- Surfers who only wear a rashguard or boardshorts in tropical water (above 75°F)
