To say that Minnesota Winters can be harsh might be an understatement, but your hot tub doesn’t have to go into hibernation just because there’s snow on the ground! In fact, some of the most peaceful, restorative soaks happen when you’re surrounded by falling snow and crisp air.
With the right preparation, your Cal Spas hot tub in winter can deliver unmatched comfort, relaxation, and stress relief—all while keeping your equipment protected and energy-efficient through the coldest months.
Here’s everything you need to know to keep your hot tub running smoothly in cold weather, extend its life, and make the most of Winter hot tubbing season.
1. Schedule Water Changes in Fall & Spring
Changing your spa water in the middle of winter can be a challenge. Frigid air and frozen hoses make the process unpleasant (and risky for your plumbing). Luckily, Cal Spas technology makes maintenance easier than ever—you only need to change your water twice a year instead of four times.
By scheduling water changes in spring and fall, you’ll avoid the hassle of draining and refilling during freezing conditions. This schedule not only simplifies upkeep but also keeps your spa water clean and balanced before the extremes of winter and summer arrive.
Pro Tip: Before winter sets in, give your hot tub a deep clean and replace the filter if it’s near the end of its lifespan. Starting the season with fresh water helps maintain consistent water chemistry all winter long.
Browse our Cal Spas hot tub supplies HERE!
2. Invest in a High-Quality, Well-Fitted Hot Tub Cover
Your hot tub cover is your best defense against the cold, and the right one can dramatically improve your energy efficiency and protect your spa.
A high-quality hot tub winter cover with high-density foam insulation and a tight, perfect fit keeps heat locked in and prevents snow or rain from seeping into the water. It also shields your spa from debris and protects your shell and components from freezing temperatures.
Every Cal Spa comes with a durable, custom-fit cover included, so you’re already set up for success. For added protection, consider using cover caps or wind straps to secure your lid during blizzards or strong winds.
3. Keep Water & Filters Clean All Winter Long
Regular maintenance doesn’t stop when the snow starts falling. Keeping your water clean and filters fresh is crucial for extending the life of your spa and ensuring safe, clear water.
Even in cold weather, you should:
- Test and balance your water weekly to maintain proper pH and sanitizer levels.
- Clean or replace filters as recommended (typically every 3-4 months).
- Wipe down the waterline to prevent buildup or staining.
Neglecting winter maintenance can cause issues like cloudy water, chemical imbalances, or even damage to internal components. The cold can amplify these problems, so stay on schedule!
4. Monitor Your Hot Tub Water Level
In the winter months, evaporation can occur more quickly due to dry air, especially when your hot tub outside in winter is used frequently.
If your water level drops too low, the pump or heater can freeze and fail, leading to costly repairs. Make it a habit to check your spa’s water level every few days, especially after a long soak or heavy snow.
If topping off is needed, add room-temperature water using an indoor hose connection or bucket system to prevent freezing as it fills.
5. Keep Your Hot Tub Warm & Circulating
One of the biggest winter hot tubbing mistakes is letting the water cool down too much between uses. To protect your spa from freezing, keep the water warm and circulating throughout the season.
If your Cal Spas model includes a winter protection system, turn it on and let it automatically regulate circulation to prevent freezing in the lines.
If not, set your system timer to run for 15-20 minutes every hour. This ensures warm water flows through the plumbing, preventing ice from forming and keeping your hot tub ready to use anytime.
Pro Cal Spas Tip: Keep your ideal hot tub temperature in winter between 100°F and 104°F. It’s the sweet spot for comfort, efficiency, and safety.
6. Stay Hydrated (Even in the Cold!)
You might not feel as thirsty during winter, but soaking in hot water can still dehydrate your body. Staying hydrated keeps your energy up and prevents dizziness or fatigue during your soak.
Bring a water bottle, or try a warm, non-alcoholic drink like herbal tea or hot apple cider while you relax in your Cal Spas hot tub or swim spa. Just skip the alcohol—its dehydrating effects can make you feel dizzy or overheated faster.
7. Enjoy the Experience: Hot Tubbing in the Snow
There’s truly nothing like relaxing in your hot tub in the snow and watching flakes drift down while warm steam swirls around you.
To make it even better:
- Keep a towel warmer or robe handy for when you step out.
- Wear a hat or headband to keep your head warm.
- Use pathway lighting or motion lights for safety and ambiance.
- Add a windbreak like a fence, screen, or row of evergreens to block cold gusts.
- Install an outdoor TV for game days, movie nights, or parties.
Your hot tub in winter can become your favorite escape from the long, cold nights with the perfect accessories.
Protect Your Spa, Enjoy Winter Longer
With a few smart habits, you can keep your hot tub running smoothly all season and extend the life of your investment. From energy-saving hot tub winter covers to consistent cleaning and monitoring, these small steps ensure your spa stays warm, efficient, and ready whenever you need to relax.
At Cal Spas of Minnesota, our team is here to help you protect your spa and make winter hot tubbing effortless. Whether you need a new cover, maintenance services, or water care products, we have everything you need to keep your spa performing at its best.
Frequently Asked Questions About Winter Hot Tubbing
1. How do I use a hot tub in winter safely?
To safely enjoy your hot tub in winter, keep water between 100°F-104°F, limit soaks to 15-30 minutes, and cover your spa when not in use. Always check for ice or slippery surfaces around the tub before entering or exiting.
2. Can you use a hot tub in the snow or during winter?
Yes! Hot tubbing in the snow is safe and relaxing if your spa is properly insulated and heated. Just avoid extreme exposure to cold air after soaking and make sure your cover stays sealed when not in use.
3. How cold is too cold to use a hot tub?
There’s technically no limit, and high-quality cold weather hot tubs like Cal Spas’ are built to handle even subzero temperatures. Just make sure your spa is running, circulating, and covered to prevent freezing.
4. Is 110°F too hot for a hot tub in winter?
Yes. Water temperatures above 104°F are not recommended for safety reasons. Even in winter, 102°F-104°F is ideal for comfort and relaxation without overheating.
5. Can you run a hot tub in cold weather?
Absolutely. In fact, it’s best to keep your hot tub running during winter to prevent frozen pipes. Continuous circulation and heating maintain consistent water temperature and protect internal components.
6. Can I leave my hot tub on all winter?
Yes, and you should! Leaving your spa powered and covered maintains heat and circulation, reducing energy spikes and preventing freezing. Turning it off in cold weather risks serious damage.
8. What’s the ideal hot tub temperature in winter for energy savings?
If you use your spa daily, keep it steady at 100°F-102°F. This prevents your heater from overworking and maintains energy efficiency throughout the season.
9. Is it safe to hot tub while it’s snowing?
Yes, soaking in a hot tub while it’s snowing can be magical! Just ensure the area around your tub is safe and clear, and don’t leave your spa uncovered afterward to avoid snow melting into the water.
Experience the Best of Winter with Cal Spas of Minnesota
At Cal Spas of Minnesota, we make winter hot tubbing easy, efficient, and enjoyable. Whether you’re relaxing under a blanket of snow or hosting a cozy evening group soak, your spa is designed for year-round comfort.
Visit one of our showrooms to check out our products:
Plymouth, MN – (763) 512-7727
Woodbury, MN – (651) 501-7727
Or explore our selection online at spastores.com.
This winter, don’t hide from the cold, embrace it from the warmth of your Cal Spas hot tub.