What Wetsuit Thickness Do I Need?

What Wetsuit Thickness Do I Need?

When it comes to enjoying water sports in the UK, having the right wetsuit is essential. But with so many options available, how do you know what thickness is best for the chilly waters of the UK? Let's dive into the factors to consider when choosing the right wetsuit thickness.

Water Temperature

The first factor to consider is the water temperature. In the UK, water temperatures can vary greatly depending on the season and location. For colder waters, such as those in the winter months, a thicker wetsuit is necessary to keep you warm and comfortable. A 5mm+ wetsuit is ideal for temperatures below 10°C.


Another important factor to consider is the season in which you will be using the wetsuit. In the UK, the water is coldest in the winter and warmest in the summer. For summer waters, a 3mm wetsuit is typically sufficient. However, as the temperatures drop in the autumn and winter, you may need to opt for a thicker wetsuit to stay warm. For example 4mm suits are a great options for late Autumn and Early spring. 

Activity Level

Your activity level also plays a role in determining the right wetsuit thickness. If you are engaging in high-intensity water sports that keep you moving and generating heat, you may be able to get away with a thinner wetsuit. However, if you are more prone to getting cold or will be in the water for extended periods, a thicker wetsuit is recommended.

If you find you need a little extra warmth you can add a thin wetsuit vest or shorts under your suit - this add no only extra insulation but also slows water from getting into the suit through any zips or seams that might otherwise allow it. 


Lastly, the fit of the wetsuit is crucial for its effectiveness. A wetsuit that is too loose will allow water to seep in, negating its insulating properties. On the other hand, a wetsuit that is too tight can restrict movement and cause discomfort. Make sure to try on different thicknesses to find the one that offers the best balance of warmth and flexibility.

The perfect fit looks like it has been 'sprayed' onto you - so its figure hugging with no loose areas. Modern suits fit much better with more flexible materials and all brands differ in their fit - so if you are local come in store and try some suits on.

By considering factors such as water temperature, season, activity level, and fit, you can determine the right wetsuit thickness for your needs in the UK. 

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