Will I need a jacket in Juneau in August?

Yes — average lows hit about 51°F, so plan on a light jacket or cardigan for mornings and evenings.

Is August rainy in Juneau?

Expect roughly 18 days of rain across the month. Pack a compact umbrella and shoes that can handle wet pavement.

How should I layer for Juneau in August?

With a daily range of about 51°F–64°F, plan on layers you can add or shed: a base layer, a mid-weight top, and an outer layer for the cool ends of the day.

What to Pack for Juneau in August — 2026 Packing List

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Essentials

If you only pack a few things, pack these.

Waterproof and windproof rain jacketEssential
August in Juneau sees an increase in precipitation with 18 rainy days, making a reliable rain jacket the most crucial item for your trip.
Fleece jacket or pulloverEssential
With average highs of 64°F, a fleece is the perfect layer for staying warm while hiking or exploring when the sun disappears behind the clouds.
Waterproof hiking bootsEssential
Juneau's trails are notoriously muddy and slick; sturdy, waterproof boots with good traction are essential for safety and comfort.
Extra pairs of wool socksEssential
There's no better feeling than putting on dry socks after a rainy day of exploring Juneau, so pack more pairs than you think you'll need.
Warm beanieEssential
Even in August, a warm hat is necessary for any boat tour on the Gastineau Channel or for early morning excursions when temps are near the 51°F low.

Clothing

Waterproof and windproof rain jacketEssential
August in Juneau sees an increase in precipitation with 18 rainy days, making a reliable rain jacket the most crucial item for your trip.
Fleece jacket or pulloverEssential
With average highs of 64°F, a fleece is the perfect layer for staying warm while hiking or exploring when the sun disappears behind the clouds.
Multiple long-sleeve shirtsRecommended
Synthetic or wool long-sleeve shirts are ideal base layers for Juneau's damp climate, as they wick moisture and keep you warm even if they get wet.
Quick-dry hiking pantsRecommended
Denim is a poor choice for Juneau's wet environment; quick-dry pants will keep you comfortable on trails around Mendenhall Glacier or Douglas Island.
Waterproof rain pantsOptional
For long hikes or boat tours during one of August's 18 rainy days, waterproof pants are a game-changer for staying completely dry and comfortable.

Footwear

Waterproof hiking bootsEssential
Juneau's trails are notoriously muddy and slick; sturdy, waterproof boots with good traction are essential for safety and comfort.
Extra pairs of wool socksEssential
There's no better feeling than putting on dry socks after a rainy day of exploring Juneau, so pack more pairs than you think you'll need.
Water sandals for boat toursOptional
Boat excursions to Tracy Arm Fjord in August involve wet decks and shore landings — quick-dry sandals or amphibious shoes make transitions from boat to land easier.

Accessories

Warm beanieEssential
Even in August, a warm hat is necessary for any boat tour on the Gastineau Channel or for early morning excursions when temps are near the 51°F low.
Light glovesRecommended
Keep a pair of light gloves in your jacket pocket for when the wind picks up or for holding onto cold railings during a whale watching trip.
BinocularsRecommended
August is a fantastic month for wildlife viewing in Juneau, and binoculars will help you spot bears, eagles, and whales from a safe distance.
Waterproof bag or dry sackRecommended
Protect your camera, phone, and other electronics from Juneau's persistent drizzle with a waterproof backpack or a simple dry sack.

Local tips for Juneau in August

August is peak season for salmon runs in many of Juneau's creeks and rivers. Visit the Macaulay Salmon Hatchery to see them up close.

The weather in August can be particularly unpredictable. Always check the forecast before heading out on a long hike and be prepared for sudden downpours.

While daylight hours are getting shorter, it's still light late into the evening. This is a great time to drive 'out the road' and enjoy the scenery with fewer crowds.

Want the full picture? 12 outfit lookbooks for Juneau in Summer, plus restaurant + day-trip dress codes →

FAQ — Juneau in August

Yes — average lows hit about 51°F, so plan on a light jacket or cardigan for mornings and evenings.
Expect roughly 18 days of rain across the month. Pack a compact umbrella and shoes that can handle wet pavement.
With a daily range of about 51°F–64°F, plan on layers you can add or shed: a base layer, a mid-weight top, and an outer layer for the cool ends of the day.

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August Packing List for Juneau — What to Wear & Bring