Juneau Weather in December

During December, Juneau experiences very low daytime temperatures of -1°C (30°F) and cooler nights around -6°C (21°F). December sits within the rainy season, and part of the winter season, so expect regular and often heavy snowfall.

Rainfall in Juneau in December

As part of the rainy season, Juneau sees around 19 days of rain in December, with an average of 303 mm (12 in). Rain during the rainy season here tends to be intense rather than just persistent drizzle. Expect significant downpours.

Temperature in Juneau in December

In December, expect very low temperatures in Juneau, with highs of -1°C (30°F) and lows of -6°C (21°F) at night. The month of December belongs to the winter season. Staying warm is the main priority this month, especially during mornings and evenings. At -6°C (21°F) overnight, frost and ice are likely outside. Indoors, consider packing an extra blanket if you're unsure about the heating. As one of the coldest months, it's important to layer up to stay warm. Don't let the chill catch you off-guard.

Sunshine in Juneau in December

The area experiences limited sunny days, amounting to roughly 43 hours of sunshine. This makes it perfect for those who lean towards cooler, cloudier settings rather than intense sunlit days.

Wind Speed in Juneau in December

Wind speeds average 4 m/s (8 knots) during December. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.

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