Your Cruise, Your Weather
Plan Your Cruise With Free Weather Forecasts
Loading Travel Forecast…Loading Travel Forecast…Loading Travel Forecast…Historical averages and packing recommendations for your December visit to Juneau.
"Dark and cold"
Affiliate links — these help keep our site free by earning us a commission at no extra cost to you.
Juneau is Alaska's capital and the gateway to some of the most spectacular wilderness on earth. Accessible only by sea or air, it sits between steep mountains and the Inside Passage — a dramatic backdrop for whale watching, glacier hikes, and float-plane adventures. The Mendenhall Glacier, just 12 miles from downtown, is one of the most accessible glaciers in the world.
Juneau in December brings cooler conditions, with highs around 36°F — pack layers alongside your warm-weather gear. December sees roughly 18 rainy days, so waterproof layers and flexible plans are wise. Showers are often short-lived but can be intense. Dark and cold
Crowds are moderate in December, making it a good balance between availability and weather. Dress in layers: a waterproof shell over a mid-layer handles the range between cool mornings and afternoon port temps.
Voyage of the Glaciers Grand Adventure
Princess Cruises · Jul 1, 2026
Alaska Horizons Seattle to Seattle
Oceania Cruises · Jul 2, 2026
Alaska Horizons Seattle to Seattle
Oceania Cruises · Jul 2, 2026
Voyage of the Glaciers Grand Adventure
Princess Cruises · Jul 4, 2026
Alaska Roundtrip Collectors' Voyage
HAL Cruises · Jul 5, 2026
Alaska Inside Passage & Glacier
Carnival Cruises · Jul 6, 2026
The average high temperature in Juneau during December is 36°F, with a low of 28°F.
Juneau typically sees 18 days of rain in December. Dark and cold
For a December cruise to Juneau, you should pack warm layers, a waterproof jacket, and thermal wear.