What to wear running in cold weather

The core rule for cold-weather running: dress for about ten degrees Celsius warmer than the actual temperature. You should feel slightly too cold for the first five minutes. If you’re comfortable standing at the door, you’ll be overheating by kilometre two.

This feels wrong every single time. Do it anyway.

Why you dress cold

Running generates a lot of heat. Within ten minutes your body is producing far more warmth than it does at rest, and that warmth has to go somewhere. Overdress and you sweat heavily, your base layer saturates, and then you get genuinely cold: wet fabric against skin in cold air is far worse than being slightly underdressed at the start.

The uncomfortable first five minutes is the price of a comfortable remaining twenty-five.

Layering, by temperature

Around 5 to 10°C: Long-sleeve technical top, or a t-shirt with a light long-sleeve over it. Shorts or light tights depending on preference. Most people are fine without gloves here.

Around 0 to 5°C: Long-sleeve base layer plus a light wind-resistant jacket or gilet. Full-length tights. Light gloves and a thin hat or headband.

Around -5 to 0°C: Technical base layer, mid-layer, wind-resistant outer. Thermal tights. Proper gloves, a hat that covers your ears, and something over your neck you can pull up.

Below -5°C: As above, plus attention to wind. Add a buff or neck gaiter you can pull over your mouth and nose, and consider covering any remaining exposed skin. Windchill matters more than the raw number: a still -8°C is more pleasant than -2°C in a stiff wind.

Adjust for your own tolerance. Some people run warm and can drop a layer; some feel the cold and need one more.

The extremities are what actually matter

Your torso will warm up regardless. It’s the parts furthest from your core that stay cold, because blood flow prioritises your centre.

Hands. The first thing to get cold and the most miserable. Cheap light gloves solve most of it, and they’re easy to stuff in a pocket once you’re warm.

Ears. Disproportionately unpleasant when cold, and a thin headband weighs nothing.

Neck. A buff is possibly the highest value-per-gram item in cold-weather running. Pull it up over your face into a headwind, drop it when you warm up.

Feet. Regular running socks are usually adequate, your feet generate plenty of heat. Thicker socks that make your shoes tight will cause more problems than they solve.

Fabric: avoid cotton

Cotton absorbs sweat, holds it, and stays wet. In the cold that’s the main mechanism by which you become genuinely chilled.

Technical synthetics wick moisture away and dry quickly. Merino wool is excellent: warm even when damp, and it doesn’t develop odour. Neither needs to be expensive; supermarket and budget-brand technical kit works perfectly well.

Practical cold-weather points

Warm up indoors. A few minutes of marching, leg swings and arm circles before you step outside means you’re not starting from cold. See how to warm up before a run.

Be visible. Cold usually means dark. Reflective details and a light are worth more than another layer.

Watch for ice. Slow down, shorten your stride, and avoid untreated paths. Falling on ice will cost you more training than a missed week ever would.

Start into the wind. So you finish with it behind you, when you’re damp and slowing.

Get changed quickly afterwards. You cool down fast once you stop, and standing around in wet kit is where cold-weather running actually becomes unpleasant.

Drink anyway. You dehydrate in the cold too, the thirst signal is just weaker.

The one that gets overlooked

Cold weather is far more of a barrier before the run than during it. The step from indoors to outdoors is the difficult part; five minutes later you’re usually fine and often glad you went.

If winter is threatening your consistency, it’s worth having a fallback rather than losing the habit: a treadmill session counts perfectly well. Can you do Couch to 5K on a treadmill covers that.

Pace works the same in any weather: run/walk intervals in your ear, building to continuous running around week six and finishing at a full 5K. Free to your first 5K. Try Pace.