Choosing the right wetsuit thickness is crucial for staying comfortable and protected in various water temperatures. Whether you’re surfing, swimming, or diving, wearing the correct wetsuit thickness ensures optimal performance and warmth. This guide will help you determine the ideal wetsuit thickness for each season, based on water temperature and your specific activity.
1. Understanding Wetsuit Thickness
Wetsuits come in different thicknesses, measured in millimeters (mm). This measurement refers to the neoprene material’s thickness, which directly impacts the suit’s insulation and flexibility. A thicker suit offers more warmth, while a thinner one provides better flexibility and breathability. Choosing the right thickness is key to maintaining body heat without compromising your movement in the water.
2. Water Temperature Ranges
The right wetsuit thickness depends on the water temperature you’ll be in. Here’s a breakdown of typical water temperatures and the corresponding wetsuit thickness needed for comfort and protection:
- Above 75°F (24°C): You don’t need a wetsuit in warmer waters. If you prefer some protection, a thin 1mm-2mm rash guard or wetsuit will suffice for light warmth.
- 68°F – 75°F (20°C – 24°C): For this warm range, a 2mm-3mm wetsuit or a spring suit (short sleeves and legs) is ideal. It offers light insulation while allowing maximum flexibility.
- 59°F – 68°F (15°C – 20°C): This temperature range is where thicker wetsuits become necessary. A 3mm-4mm full wetsuit will provide warmth without compromising too much on movement. Spring suits or shorties might also work for warmer days within this range.
- 50°F – 59°F (10°C – 15°C): In cooler waters, a 4mm-5mm full wetsuit is recommended. This thickness ensures that you maintain body heat and stay comfortable during extended sessions. You may also consider wetsuits with sealed seams for added insulation.
- Below 50°F (10°C): For very cold conditions, such as winter surfing or diving, a 5mm-6mm wetsuit is essential. For extreme cold, 7mm-8mm wetsuits may be required, especially if you’re planning to stay in the water for a long time. These wetsuits offer maximum warmth and are often paired with accessories like gloves, boots, and hoods for complete protection.
3. Factors Affecting Wetsuit Thickness Choice
While water temperature is the primary factor when choosing wetsuit thickness, other considerations can influence your decision:
- Duration in Water: If you’re going to be in the water for extended periods, you may need a thicker wetsuit to ensure that you stay warm. Short sessions might allow you to get by with a thinner suit, but prolonged exposure to cold water requires added insulation.
- Activity Type: High-intensity activities like surfing or wakeboarding generate body heat, so you may opt for a thinner wetsuit. For low-intensity activities like diving or open-water swimming, a thicker wetsuit is needed to maintain warmth due to less muscle activity.
- Fit and Seals: A well-fitting wetsuit minimizes water entry and maximizes insulation. Make sure the suit fits snugly around the neck, wrists, and ankles to prevent cold water from flushing through.
4. Seasonal Wetsuit Guide
To make choosing the right wetsuit easier, here’s a seasonal guide based on typical water temperatures in the UK:
- Spring (March-May): During spring, water temperatures range from 10°C to 15°C (50°F to 59°F). A 4mm-5mm wetsuit with sealed seams will offer sufficient warmth, though adding a hood, gloves, and boots may be necessary for colder conditions.
- Summer (June-August): Summer waters are warmer, ranging from 15°C to 20°C (59°F to 68°F). A 3mm full wetsuit or spring suit is perfect for this time of year, providing just enough insulation without compromising mobility.
- Autumn (September-November): Autumn brings water temperatures similar to spring, ranging from 10°C to 15°C (50°F to 59°F). A 4mm-5mm wetsuit should be sufficient for most activities. As temperatures cool, consider adding accessories for extra warmth.
- Winter (December-February): For winter conditions, water temperatures often fall below 10°C (50°F), requiring a 5mm-6mm full wetsuit. In these frigid waters, you’ll need to wear a hood, boots, and gloves to protect your extremities from the cold.
5. Wetsuit Accessories for Cold Water
In extremely cold conditions, wetsuit accessories become crucial for ensuring warmth and comfort:
- Wetsuit Hood: Essential for keeping your head warm in cold waters, as it helps prevent heat loss.
- Boots: Wetsuit boots protect your feet from the cold and provide grip when walking on slippery surfaces. Choose boots that fit well and provide adequate warmth for your conditions.
- Gloves: A good pair of wetsuit gloves keeps your hands warm and flexible, enabling you to perform tasks like paddling or handling equipment without discomfort.
- Neoprene Vests and Rash Guards: If you’re in warmer water but still need extra protection, adding a thin neoprene vest or rash guard can help maintain body heat without the bulk of a full wetsuit.
6. Choosing Between Full Suits, Shorties, and Tops
When selecting a wetsuit, consider whether a full suit or a shorter style will best suit your activity and the conditions:
- Full Wetsuit: Ideal for cold water and long sessions. Full suits come in various thicknesses, providing comprehensive protection from the neck down to your ankles.
- Shorty Wetsuit (Spring Suit): Best for warmer waters (above 60°F/15°C), shorties cover the torso and upper arms but leave the legs exposed. These are perfect for warmer climates or short surfing sessions.
- Wetsuit Tops: For warmer water or when you don’t need full body protection, a wetsuit top provides coverage while allowing more flexibility than a full suit. These are ideal for water sports like kayaking or paddleboarding.
Conclusion
Choosing the right wetsuit thickness is vital for comfort, performance, and safety in the water. By considering factors like water temperature, activity type, and how long you’ll be in the water, you can select the best wetsuit for your needs. Whether you’re surfing in the summer or diving in the winter, this wetsuit thickness guide ensures you stay warm and comfortable year-round.
