6 Reasons Why Winter is the Most Important Season for Swimming

As the cold weather settles in and families settle into school-year routines and hibernation mode, many parents think swimming lessons should take a natural break until summer. After all, it’s cold, pools are quieter, the world gets darker and it feels like water safety just isn’t a priority anymore.

But here’s the truth every swim instructor knows (and what many parents are surprised to hear):

As a swim instructor, I see the most consistent progress between September and May. While many children make HUGE progress in the summer (we'll talk about why in a more seasonally appropriate post), most of these children are the children we see all year round. These swimmers are not our seasonal, fair weather kiddos and, if they are, they don’t hang on to this progression for long.

Winter swimming has unique benefits you simply can’t replicate at any other time of the year. Not only do those micro-progressions keep building but, you are investing in their mental health and keeping their immune system functioning optimally as well! 

And, if your child takes a long break between September and June, there’s a good chance they’ll lose some of the skills, confidence, and momentum they worked so hard to accomplish. In this post, I’ll break down the 6 biggest reasons off-season swimming is essential, plus how keeping your child in lessons this season will set them up for a healthier winter and a safer, stronger summer.

1. Kids Lose Swim Skills Shockingly Fast Without Practice

Swimming is a skill that takes a lot of coordination, strength, stamina and breath control. It is very difficult to gather all these skills at once and accomplish something "simple" like a front float. Just like reading or riding a bike, there is some neurological/muscle memory that is developed over time but, unlike reading or riding a bike, the ability to practice swimming skills requires a particular environment, one that most families have to actively plan for. Since we can't pull a pool out of our garage or off the shelf the same way we can pull out a bike or a book, the limited time we have to practice should remain as consistent as possible in order to keep skills sharp and confidence and stamina building.

When kids stop swimming for months at a time, we often see:

• Regression in breath control

  • Children will choke on the water more often as they re-learn breath holding and proper, rhythmic breathing. Correcting this can take a bit of time and, on occasion, it can take the whole season for children to regain their breath control.

• Fear creeping back in

  • The first day back from a break can be nerve-wracking, especially if they haven’t been in the water much. They may not even want to get in the water on their first day back and may resist being pushed to complete a skill independently.

• Loss of coordination

  • Especially if a child has gone through a growth phase, parents may notice that they tend to be a bit awkward until they "grow back into their body" again. If they were not swimming during this phase, they may have more difficulty with underwater skills or propulsion until they regain their coordination.

• Reduced endurance

  • Aerobic fitness (cardio) is something we know that, after just a few days, drops, especially in older kids. As the levels get higher, fitness becomes a bigger part of the curriculum. Instructors, in general, find that this is one of the biggest things that holds swimmers back - right up to the Bronze Program and for National Lifeguard candidates and recertification candidates as well.

• Needing to relearn skills they already passed

  • We see this often with our seasonal swimmers, where they may take half the summer to get back to where they left off the previous year. Parents are sometimes shocked when their child starts the next session “behind where they left off,” and instructors need to pull out all the tricks to get the most out of their remaining lessons.

2. Winter Swimming Keeps Kids Active When They Need It Most

Did you know that the Canadian Society for Exercise Physiology recommends a minimum of 30 minutes of activity per day for infants under 1 year and 3 hours of activity per day for toddlers 1-4 years? Winter lessons help families keep up with healthy activity during seasons where, as the temperature drops and sunlight decreases:

• Outdoor play decreases

• Sports are limited

• More time is spent in classrooms and on screens

Unless children are keeping up with other activities through the winter, lessening their exercise can have a dramatic effect on, not only their physical health, but their mental health as well.

3. Swimming Supports Winter Mental Health and Emotional Regulation

Shorter days and colder weather can affect our mood and energy levels. Regular exercise helps:

• Boost endorphins

• Improve sleep quality

• Reduce stress and anxiety

• Increase focus and emotional regulation

• Provide a predictable, positive weekly routine

Exercise in the cooler months offers a healthy “release” of built up tension during a normally sedentary season. Many parents who have their children in regular activities notice they:

• Behave better

• Are less moody 

• Sleep better

• Have more structured energy outlets

Swim instructors can usually tell when swimmers have had their routines disrupted - they've spent most of the day inside on

rainy days, blacktop/indoor recess at school, or disruptions in their normal routine. Whether they’re just back from vacation or illness, adjusting to a parent’s new work or travel schedule, or simply feeling out of rhythm, these shifts often show up in the pool as lower energy, reduced focus, or increased hesitation.

Swimming is not just a physical skill, it's an emotional and cognitive one too. Swimming year-round, especially in the winter, fosters a well-balanced mood, better emotional regulation, a more predictable routine, lower anxiety, and decreased seasonal depression and stress. Winter lessons can help with routine consistency which benefits physical, mental, social and academic health.

4. Cooler Months Are When Kids Make the Most Consistent Progress

Many parents think expedited summer lessons can produce the fastest results, which may be true in some cases, but this progress is sort-lived if practice isn’t continued through the winter. Here is why the real magic happens in the winter!

In the summer, schedules have a tendency to be a bit more flexible - taking an extra long weekend here and there, going away for family BBQs or seeing friends or maybe even a spontaneous sleepover at a grandparent’s house. This means that activities, like swimming lessons, are scheduled in an unusual pattern or some lessons are missed altogether. And yes! Families should do these things. Summers in Canada are so short and family events and experiences are so important to be a part of, especially for kids. It just means a bit of a sacrifice when it comes to routine.

Something that winter can offer that summer doesn’t is consistency. Families establish and stick to routines and there are less spontaneous events that distract us from our schedules. Building routines, even within the lessons themselves, helps keep children focused and their anxiety levels down. By sticking to a consistent schedule, children, especially older children, can start to keep tack of their own progress and get excited about what the next lesson will look like. They are more likely to remember skills and buy into the importance of swimming lessons when they are given the opportunity to be successful.

5. Drowning Prevention and Water Safety Are Not Seasonal

When it’s cold, we feel safe from drowning risks because water isn’t top of mind. We aren't travelling to the cottage every weekend or going to a neighbour's pool in the evenings but, water is everywhere, year-round:

• Families travel to resorts and hotels

• Kids encounter hot tubs and condo pools

• Bath-time remains a daily hazard

• Children play on or near frozen lakes and rivers

• Storm drains and retention ponds remain unsafe

• Kids have less exposure to water, making them less conditioned in an emergency

When a crisis happens, kids do not rise to the occasion; they fall to their level of training.

Winter swimming ensures that training level stays high.

6. Consistency in Lessons Builds Resilient, Confident Children

As an instructor-led activity, swimming lessons provide structure, routine and support which is an environment children thrive in! For many toddlers entering our programs, everything is new and it takes time to adjust. Once they learn what to expect, progress comes faster. They become less anxious and less likely to act out, they start enjoying lessons more, and parents can begin applying our strategies at home in preparation for daycare, school, and other activities.

As a unique activity where independence requires a certain skill level, swimming lessons especially strengthen:

• Perseverance

• Task focus

• Coping skills

• Confidence in navigating challenge

Like many skill-based activities, swimming lessons offer a place where kids can feel comfortable trying something new, fail safely, learn to take instruction and correction, learn to celebrate the micro-progressions and explore what benefits come from repetition.

These are life skills crucial for development and winter lessons give them space to grow these qualities outside the high-pressure environment of summer.

When kids swim through the winter, they start spring and summer:

• More confident

• More independent

• Less fearful

• More skilled

• More prepared for aquatic summer activities

All of this is possible because children have been in an environment where water safety routines are ongoing. They know not to run around the pool, to wait for the instructor or a trusted adult to be in the water first, to listen for instructions and not participate in dangerous actions. 

When summer arrives, these swimmers are prepared with the water safety and survival skills they’ve been building all year so, families can relax and enjoy the water together right from day one. Older children, especially, benefit when their end-of-school pool party invitations come out and parents can be confident knowing they will make good choices and can swim safely.

Bonus: Why Waiting for Spring or Summer May Hinder Results

I am a firm believer that, in order to see the best and quickest results, your child needs to start swimming sooner, not later. If you have a Fall baby, delaying swimming lessons to warmer weather means they could be 8 months old by the time they are being introduced to lessons and everything that comes with them - including a new person, their instructor. 8 months is well within the age range for one of a baby’s first, big, emotional milestones, stranger danger, and it may create a bit of a barrier for survival-based swim training where a parent is not in the water with them. If your hope is for your baby to participate in 1:1 lessons as an infant or toddler, getting them in the water with your favourite instructor, early, will be a key piece to them being successful in the program and pushing through normal regressions.

Pro Tip: Winter Swim Lessons Offer Hidden Opportunities

For facilities that accommodate a lot of group lessons, winter season tends to be the slowest but, this can be a great opportunity for your family! This means:

• More instructor attention in group classes

• Quieter pools

• Less competition for practice and progress

• More availability for preferred lesson times and instructors

Parents often look for seasonal openings in May or June, only to find waitlists, lack of optimal availability and full instructors. Winter session is your chance to secure a spot and an instructor your child thrives with. There may also be opportunities to make changes to your schedule or your instructor in the slower off-season, if something isn’t working out.

Consistency, not seasonality, is the key to a safe, strong, and confident swimmer. By committing to lessons year-round, you’re not just signing up for another activity - you are making a long-term investment in your child’s safety, confidence, and skill development. Winter might feel like an ‘off season,’ but for young swimmers, progress thrives when practice is continuous.

When parents choose to maintain momentum, children retain skills, build new ones faster, and feel proud of how far they’ve come.

See you in the pool!