What to Wear to the Blue Mountains

Tips & Articles

Not sure how to dress for a trip to the Blue Mountains? We’ve got you covered.

The quick version: layers are non-negotiable, enclosed shoes are a must, sunscreen goes on regardless of season, and check the forecast the night before. Now for the detail.

The Blue Mountains sit at around 1,100 metres above sea level. That single fact explains almost everything about what to pack. Temperatures run 3, 5°C cooler than Sydney on average, wind picks up at the clifftop lookouts, and conditions can shift from bright sunshine to rain and back again within a few hours. What feels like a mild Sydney morning can turn into a cold, blustery afternoon at Echo Point.

This guide covers what to wear in each season, what to pack in your daypack, and what to leave behind.

What to Wear to the Blue Mountains in Summer

Summer up here is warm but rarely as brutal as coastal Sydney. The elevation keeps things a few degrees lower, but the UV index does not drop with the temperature. You are higher up, and UV radiation is stronger at altitude. That is the thing most visitors do not account for.

A light, long-sleeved shirt in a natural fibre like cotton or bamboo is your best option. It shields you from UV, breathes well in the heat, and protects your arms from dry summer brush on the trail. If you are walking near scrub, long sleeves also save you from scratches. SPF-rated shirts are worth considering if you burn easily or plan to spend a full day outside.

For your legs, loose trousers or shorts in a lightweight fabric work well. Avoid jeans. They are heavy, uncomfortable in the heat, and take ages to dry if you get caught in a passing shower.

Finish the outfit with a wide-brim hat and sunglasses. The lookouts at Echo Point and Wentworth Falls are fully exposed, with little shade, and the wind can be surprisingly strong even on a hot day. Pack a thin layer in your bag just in case. You probably will not need it, but you will be glad to have it if the afternoon cools down.

What to Wear to the Blue Mountains in Autumn and Spring

These two seasons are genuinely unpredictable, and “variable” does not quite capture it. In October, the lower Blue Mountains can start the morning at 8 or 9°C and climb past 20°C by early afternoon. April can be stunning and mild, or grey and cool all day.

Layers are the answer, and the reason is specific to the terrain. When you descend into the valleys on tracks like Furber Steps or the Grand Canyon Track, the temperature drops noticeably. The gorges are shaded, the air is damp, and the wind disappears. Come back up to the clifftop and you are back in the sun with a breeze. You will put layers on and take them off several times in a single walk.

What to wear:

A moisture-wicking base layer close to the skin
A light fleece or jumper you can tie around your waist
A waterproof shell that packs down small

Avoid heavy knit jumpers. They are warm when you pull them on but impossible to carry comfortably once you heat up on the trail.

What to Wear to the Blue Mountains in Winter

Winter in the Blue Mountains runs from June through August and it is properly cold. Snow falls occasionally, usually on Katoomba and the higher parts of the range, but do not count on it or plan around it. What you can count on is frost on walking tracks, wet conditions most mornings, and temperatures sitting around 3 to 8°C before midday.

The priority in winter is waterproofing first, warmth second. A fleece without a shell on top will soak through in drizzle and leave you cold fast.

Pack:

A moisture-wicking base layer (merino wool is ideal if you have it)
A mid-layer fleece or puffer
A waterproof outer jacket that also blocks wind
Waterproof shoes or hiking boots
A beanie and gloves for early starts
A scarf

One specific note on jeans: they are a poor choice in winter. Heavy, cold when wet, and they take hours to dry. Wear them in Katoomba over a coffee, not on the trail.

Footwear for the Blue Mountains

Sandals and thongs are out, full stop. The walking tracks here involve uneven sandstone steps, exposed roots, and surfaces that get very slippery near waterfalls. Furber Steps alone has over 900 steps, and the descent requires grip and ankle support that open footwear simply cannot provide.

For most walks at the main lookouts and shorter tracks, sturdy closed sneakers with good grip are completely adequate. You do not need full hiking boots to visit Echo Point or Leura Cascades.

Hiking boots are worth it when you are tackling longer valley walks like the National Pass or Six Foot Track, walking on wet sandstone near Wentworth Falls, or visiting in winter when frost and mud are common.

If you do bring new hiking boots, wear them in for a few days before your trip. Blisters on Furber Steps are not a fun way to spend an afternoon.

What to Pack for the Blue Mountains: Bag Essentials

A 15 to 20 litre daypack is the right size. Big enough to carry layers, water, and snacks without becoming a burden on the steps. Look for one with chest and hip straps if you are planning a longer walk.

Here is what goes in it:

Water: Bring at least 1.5 litres per person for a full day of walking. Refill points on trail are limited. In summer, take more. Dehydration creeps up on you at altitude.

Sunscreen: SPF 50+ to Australian standard. Reapply every two hours. Australia’s UV standards are higher than most countries, and the elevation adds to the exposure.

Hat: Wide-brim in summer and spring for sun protection. A beanie tucked into the bag for autumn and winter.

Rain jacket or packable shell: Even on a clear day, carry one. The mountains have their own weather and it can arrive fast.

Insect repellent: More relevant on valley trails and near waterways, particularly in the warmer months.

Snacks: Cafes in Katoomba and Leura are easy to find, but once you are on a trail, food is not available. Bring something energy-dense: a couple of muesli bars or a bag of trail mix goes a long way.

Battery pack: The lookouts are made for photography and they drain phone batteries fast. A small 10,000 mAh portable charger is enough to keep you going all day.

What to Leave Behind

A few things that regularly cause problems:

Sandals and thongs. Mentioned already, but worth repeating. Not appropriate for any Blue Mountains walking track.

Heavy backpacks. If you are loading up a 40 litre pack for a day trip, reconsider. Carrying excess weight on 900 steps is miserable.

Jeans in winter. Cold, heavy when wet, slow to dry.

Valuables and expensive jewellery. Leave them at your accommodation. You will not want to be worrying about them on the trail.

The Easiest Way to Do the Blue Mountains

If you would rather focus on the scenery than the logistics, a Blue Mountains guided day tour takes care of the route, transport, and timing for you. Pack your layers, load your daypack, and let us handle the rest.

Frequently Asked Questions

What should I wear to the Blue Mountains in summer?

Wear a light, long-sleeved shirt in a natural fibre like cotton or bamboo, loose trousers or shorts, a wide-brim hat, and sunglasses. UV is stronger at elevation, so cover up even when it feels mild. Pack a thin layer in your bag in case the afternoon cools down at the lookouts.

What should I wear to the Blue Mountains in winter?

Layer up with a moisture-wicking base layer, a fleece or puffer mid-layer, and a waterproof, windproof outer jacket. Add waterproof shoes or boots, a beanie, gloves for early starts, and a scarf. Skip the jeans.

Do I need hiking boots for the Blue Mountains?

Not for most walks. Sturdy enclosed sneakers with good grip are fine for the main lookouts and shorter tracks. Hiking boots make sense for longer valley walks, wet sandstone near waterfalls, or winter conditions. If you bring new boots, break them in before the trip.

What’s the weather like in the Blue Mountains compared to Sydney?

The Blue Mountains sit at around 1,100 metres above sea level, so temperatures are typically 3 to 5°C cooler than Sydney. Wind is more common at the clifftop lookouts, and conditions can change quickly between sun, cloud, and rain in the same afternoon.

Does it snow in the Blue Mountains?

Occasionally, usually in Katoomba and the higher parts of the range during June to August. It is not guaranteed and not something to plan around. Frost on walking tracks is more common and more worth preparing for. Waterproof footwear matters more than snow boots.

How much water should I bring for a day in the Blue Mountains?

At least 1.5 litres per person. Refill points on the trails are limited, so do not rely on finding water along the way. In summer, bring more.

What should I NOT wear to the Blue Mountains?

Sandals or thongs on any walking track, jeans in winter, and anything new that has not been worn in before. A heavy pack is also worth avoiding if you are planning to tackle the steps.

Is there somewhere to buy gear or clothing near the Blue Mountains?

Katoomba has a handful of outdoor and general stores if you find yourself short on something. It is worth checking before you leave Sydney though, particularly for specialist items like waterproof jackets or hiking socks.