Juneau weather in December
Temperature, rain and sunshine in December: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in December
Poor
Best time to visit: April – June
What is the weather like in Juneau in December?
In December, Juneau is freezing cold: daytime highs average −3 °C, and nights often drop below freezing (−6 °C). The sun is scarce, with only about 1 hours a day. Precipitation, often as snow, falls on about 20 days, totalling 246 mm. Snow falls on about 17 days. All in all, December is not an ideal month for a holiday in Juneau.
December compared
How the weather changes from November to January. Tap a month to open it.
| NovemberNov | DecemberDec | JanuaryJan | |
|---|---|---|---|
| Score | 0 | 0 | 0 |
| Day | 0° | −3° | −3° |
| Night | −4° | −6° | −7° |
| Sun | 2 h | 1 h | 1 h |
| Rain days | 21 | 20 | 20 |
More details for December
- Daylight
- 6 h 27 min08:39 – 15:06
- UV index
- 0 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 20 km/haverage daily peakAll months
- Cloud cover
- 79 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 17 days1 cm or more of fresh snowAll months
- Time zone
- UTC−9America/Juneau
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %0 %
- Few rainy daysweight 20 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in December
- Warm jacket
- Hat, scarf & gloves
- Rain jacket or umbrella
Juneau in December: quick answers
Is Juneau hot in December?
No. In December, Juneau is freezing cold: daytime highs average −3 °C and nights drop to about −6 °C.
Does it rain much in Juneau in December?
It rains often – on about 20 days, adding up to 246 mm.
Juneau month by month
The whole year in JuneauAll destinations: USAWhere to go in December
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences