A group of swimmers are running on the sand at low tide towards the water - they are wearing zone3 changing robes to keep warm.

5 Tips for Open Water Swimming When it is Cold

As the first signs of spring begin to appear, so does the anticipation of open water swim season.


The days are getting longer, the water is (slowly) warming up, and it's time to trade the pool for the open expanse of lakes, rivers, and seas.


Whether you’re a seasoned competitor or dipping into open water for the first time, this season is about pushing boundaries and rediscovering the thrill of swimming beyond the lane lines.


But let’s be honest—springtime swimming still means chilly water. If you want to extend your time in the water and make your swims more enjoyable, preparation is key. Here are five ways to stay comfortable and perform at your best when taking the plunge into cold water.

a woman is at the beach wearing a zone3 wetsuit and a blue zone3 changing robe

Get the Right Kit for the Job

Nothing makes a cold swim more bearable than the right kit. A high-performance wetsuit is engineered for optimal buoyancy, warmth, and flexibility, helping you maintain efficiency and comfort.


Pair it with thermal swimwear, gloves, and booties to keep the chill at bay when open water swimming allowing you to focus on your technique instead of the temperature.

Warm Up Before Open Water Swimming

Don’t wait until you’re in the water to get your body working. A solid dryland warm-up, think dynamic stretches, light jogging, or jumping jacks, will raise your core temperature and make the cold shock less intense.


Plus, getting your blood flowing beforehand can help reduce the sensation of icy water on your skin and keep you in the water for longer.

Use a Zone3 Changing Robe for Instant Warmth

Post-swim warmth is just as crucial as pre-swim prep. A Zone3 Changing Robe is your best friend when it comes to warming up quickly after a cold dip.


Designed to trap heat and provide instant insulation, it allows you to change comfortably while shielding you from wind and rain, because nothing cuts a swim short like dreading the post-dip chill.


Master Your Breathing

Cold water has a way of knocking the breath out of you, literally. Learning to control your breathing can make all the difference.


Start with deep, slow breaths before entering the water and focus on exhaling steadily once you’re swimming. This helps combat the initial shock and allows you to settle into your rhythm faster.

Ease In and Know Your Limits

Rather than diving in headfirst, enter the water gradually, allowing your body to adjust to the temperature.


Start with shorter swims and build up your endurance over time. And always listen to your body, hypothermia and cold water shock are real risks. If you start shivering uncontrollably or feel disoriented, it’s time to get out and warm up.

Avoid Afterdrop

Beyond Boundaries: Embrace the Season

Open water swimming in spring is a test of resilience, but it’s also one of the most rewarding experiences you can have.


With the right approach, kit, and mindset, you can extend your season and enjoy the exhilaration of swimming in nature.


Whether you're training for a triathlon, chasing a personal best, or simply savouring the freedom of the open water, now is the time to push beyond your limits and dive into the new season with confidence.


Zone3 is with you every stroke of the way. Let’s make this open water season your best one yet.

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