What to Wear Running by Temperature
Dress for the run you’re about to have, not the cold you feel standing still.
The single most useful rule: dress for about 15–20°F (8–11°C) warmer than the thermometer says, because you heat up quickly once you’re moving. If you’re comfortable at the door, you’ll be too hot by mile two.
The core rule
- Add ~15–20°F to the actual temperature and dress for that number.
- Aim to feel slightly cool for the first few minutes — that means you’ve nailed it.
- Layers you can shed beat one heavy piece you’re stuck in.
By temperature
- 60°F+ / 15°C+: singlet or light tee and shorts; hat and sunglasses in sun.
- 45–60°F / 7–15°C: short sleeves or a light long sleeve with shorts.
- 30–45°F / -1–7°C: long-sleeve top, shorts or light tights, light gloves.
- 15–30°F / -9–-1°C: a layer plus a wind-resistant top, tights, gloves, and a hat or headband.
- Below 15°F / -9°C: two tops with a wind layer, warm tights, insulated gloves, hat, and cover exposed skin.
Wind, rain, and sun
- Wind makes it feel colder — start into the wind so you finish with it at your back.
- In rain, a brimmed hat keeps water off your face; a light water-resistant shell helps in the cold.
- In heat and sun, lighter colors, a hat, and sunglasses help more than going shirtless does.
Fabrics
- Choose technical, moisture-wicking materials; avoid cotton, which stays wet and cold.
- Merino wool regulates temperature well in the cold and resists odor.
- Watch chafe points (underarms, inner thighs, and — for some — nipples) and use anti-chafe balm.
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