What to Wear Hiking in Changing Weather: A Layering Guide
The best approach to changing weather is layering: a breathable base, an optional warm mid layer and a light outer layer you can put on or pack away quickly. That way you adjust to the conditions instead of being stuck with one outfit.
Start with the base layer
Your base layer sits against your skin and should move sweat away rather than hold it. Choose a fabric that dries reasonably fast, and avoid heavy cotton on longer hikes because it stays damp.
Keep the fit close but comfortable. A base layer that bunches up or rubs under a backpack strap will bother you after a few miles.
For trousers or shorts, pick something that lets you stride freely and handles a bit of brushing against plants or rock.
Add a mid layer for cold stretches
A fleece or similar mid layer traps warmth when you stop for a break or climb into cooler air. It does not need to be thick, since you can combine it with the other layers.
Put it on during pauses before you feel cold. Waiting until you are chilled makes it harder to warm up again.
If the day starts cold but warms up, a mid layer that packs small is far more useful than a bulky one.
Finish with a light outer layer
The outer layer deals with wind and light weather. A lightweight jacket such as the Stilltrail Hiking Jacket is designed for this role: it protects against wind and light weather and is easy to pack in your backpack.
The point is accessibility. Keep it at the top of your pack or in a side pocket so you can put it on within seconds when a gust or a shower arrives.
For heavy, prolonged rain, plan for a more robust shell in addition.
Small extras that help
Check the forecast the evening before and again in the morning, then pack for the worst part of the day, not the average.
A hat or buff, thin gloves and a spare pair of socks take little space and make a real difference when conditions shift.
Finally, test your layering on a short local walk before a bigger trip. You will quickly learn which pieces you reach for and which stay in the bag.
FAQ
How many layers should I wear hiking?
Three is a common approach: base layer, mid layer and outer layer. You then add or remove pieces as conditions change.
Should I wear cotton for hiking?
Cotton holds moisture and dries slowly, so many hikers avoid it for longer or colder hikes. Quick-drying fabrics are usually more comfortable.
Do I need a jacket on a sunny day?
A light, packable jacket is worth carrying because wind and weather can change quickly. It takes little space in your backpack.
Also worth reading: Lightweight Hiking Jacket for Trail Days · Windbreaker vs Rain Jacket for Hiking