40 degrees is where cold-weather riding starts for real. Your core stays comfortable with the right layers, but at riding speed the air moving past you makes 40°F feel closer to 39°F on exposed skin, and colder still on a descent.
Here's the kit for a steady ride on a dry, overcast day with light wind. Below it, how sun, wind, rain and effort change the list.
40°F kit — steady ride, dry, light wind
Worth packing if you run cold or the route has long descents: a thermal skull cap instead of the ear warmer.
YOUR CORE IS THE EASY PART
A merino base layer, a long-sleeve jersey and a wind jacket keep your torso comfortable at 40°F on almost any steady ride. The jacket matters more than it looks: even on a calm day, riding at 15 mph pushes cold air straight through a jersey. Merino underneath earns its place because it keeps insulating when you sweat on the climbs.
What doesn't work is trading all that for one heavy winter jacket. At 40 degrees you'll cook on the first climb with nowhere to vent. Save the winter jacket for below freezing and build 40°F out of layers you can unzip.
HANDS, FEET AND EARS
This is where 40-degree rides fall apart. Your extremities cool much faster than your core, and unlike your core they don't warm back up when you push harder.
Hands
Light full-finger gloves are right at 40°F. Once it feels closer to 37°F, move up to thermal gloves. Half-finger gloves are done for the season.
Feet
Winter socks plus thermal shoe covers. Cycling shoes are built to vent, which is exactly the problem in the cold — covers block the air coming through the uppers and the sole.
Ears and neck
An ear warmer headband is the sweet spot at this temperature; a full skull cap is often too warm on a climb. Don't skip the neck gaiter either — the gap between your collar and chin loses a surprising amount of heat at speed.
HOW CONDITIONS CHANGE IT
That kit is the baseline. Here's what VeloReady changes when the conditions or your effort do:
| Conditions | What changes |
|---|---|
| Sunny and calm | A vest can replace the wind jacket — sun on your back does real work at this temperature. Sunglasses instead of clear lenses. |
| Windy | No change to the list. At 40°F it's already built for wind, so just zip everything to the top. |
| Light rain | A packable rain jacket replaces the wind jacket, and thermal gloves replace the light ones — wet hands chill fast at 40°F. Keep the merino base layer — it's your insulation if rain gets through. |
| Easy ride | A thermal long-sleeve jersey instead of the standard one. Less effort means less heat to work with. |
| Hard effort | Bib shorts with leg warmers instead of tights, plus a lighter base layer. The vest becomes optional; hands and feet stay covered. |
| Before sunrise, after dark, or early in the season | Dress a step warmer with a thermal jersey. Without the sun, and before your body adjusts to winter, 40°F bites harder. |
Is it 40°F where you are right now? Check live weather for your city — wind, rain, sun and time of day included — and get the exact kit for today's ride.
Check your city →COMMON MISTAKES AT 40°F
Overdressing the core, underdressing the hands
The classic 40-degree setup is a heavy jacket over summer gloves. It's backwards. Keep the torso layered and adjustable, and put the warmth into gloves, shoe covers and an ear warmer.
Forgetting the descent
A long descent at 30 mph turns 40°F into something far colder. Zip the jacket all the way before you drop in, not halfway down.
Skipping shoe covers because it's dry
Dry or not, cold air pours through shoe vents at speed. At 40 degrees, covers are about temperature, not rain.
QUICK QUESTIONS
Is 40 degrees too cold to ride a bike?
Not at all — 40°F is comfortable riding weather with the right kit. Thermal tights, a merino base layer, a long-sleeve jersey and a wind jacket cover the ride, and covering your hands, feet and ears is what makes it pleasant rather than miserable.
Can I wear shorts at 40 degrees?
Only with leg warmers, and only on a hard effort — that's the one case where VeloReady swaps thermal tights for shorts and leg warmers. For any steady or easy ride, wear thermal tights.
What gloves should I wear at 40 degrees?
Light full-finger gloves. Step up to thermal gloves once it feels below about 37°F, and to full winter gloves below freezing.
Warmer than this? See what to wear cycling at 50°F or at 60°F.
Prefer Celsius? See what to wear cycling at 5°C.