Your Cold Plunge Is Too Cold</span>
Contrast Therapy, Cold Plunge Sean Fowler Contrast Therapy, Cold Plunge Sean Fowler

Your Cold Plunge Is Too Cold

The best cold plunge temperature is not necessarily the lowest one you can tolerate. Here’s what experience—and the science—actually suggest.

One of the first questions people ask about cold plunging is:

“How cold should the water be?”

They usually expect a specific number. Maybe 39°F. Maybe 45°F. Maybe something involving ice floating dramatically around the surface.

The honest answer is less exciting, but far more useful:

The right temperature depends on your experience, how long you plan to stay in, what you are trying to accomplish, and how your body responds.

For me, the sweet spot is usually around 46–48°F.

Read More