30YearWeather
Packing for Juneau
2026 Packing Guide

What to Wear in Juneau in September

Your complete weather-based packing list derived from 30 years of historical climate data.

September Weather in Juneau at a Glance

Avg High

13°C

Avg Low

8°C

Rain Risk

66%

💡 Quick Tip:

Light jacket, hoodies, jeans. T-shirts for warmer afternoons. High chance of rain! Definitely pack a durable raincoat and waterproof shoes.

Weekly Packing Breakdown for Juneau

Week 1Days 1-7
10° - 15°
63% Rain

Light jacket, hoodies, jeans.

Week 2Days 8-15
9° - 14°
61% Rain

Light jacket, hoodies, jeans.

Week 3Days 16-23
8° - 13°
70% Rain

Light jacket, hoodies, jeans.

Week 4Days 24+
7° - 11°
70% Rain

Warm jacket or wool coat, sweaters, long pants.

Essential Packing List for Juneau in September

Don't leave home without these essentials.

Top Layers

  • Long-sleeve shirts / Base layers
  • Warm Sweater / Fleece
  • Light Jacket / Windbreaker

Bottoms & Shoes

  • Jeans / Heavy Trousers
  • Waterproof Boots / Shoes
  • Socks (Cotton/Athletic)

Accessories

  • Scarf & Gloves
  • Compact Umbrella

Common Questions about Juneau Weather in September

What is the weather like in Juneau in September?

It is mild and pleasant with average highs of 13°C. Nights average around 8°C.

Do I need a heavy coat?

A medium-weight jacket or coat is recommended, especially for evenings.

Does it rain often in Juneau in September?

Yes, it is quite rainy with a 66% chance of precipitation. Rain gear is a must.

What shoes should I take to Juneau?

Comfortable walking shoes are the most important item. Since there is a chance of rain, water-resistant shoes or boots are recommended.

Can I wear shorts / short sleeves?

No, it's generally too cool. Stick to long pants and layers.