Juneau weather in January 2026

Expect daytime maximum temperatures of 27°F in Juneau, Alaska in January based on long-term weather averages. There are 3 hours of sunshine per day on average with 17 days with some rainfall and typically 5.8 inches of rainfall in the month, which might fall as snow.

  • 27°F maximum daytime temperature in January in Juneau27
    27°F max day temperature
  • 3 hours of sunshine per day
  • 17 days with some rainfall in January in Juneau17
    17 days with some rainfall
  • 16°F minimum night-time temperature in January in Juneau16
    16°F min night temperature
  • 7 hours of daylight per day in January in Juneau7
    7 hours of daylight per day
  • No heat & humidity in January in Juneau0
    No heat & humidity
  • 5.8 inches monthly rainfall in January in Juneau5.8
    5.8 inches of monthly rainfall
  • No UV (maximum) index in January in Juneau0
    No UV (Maximum) Index UV index
  • 39°F sea temperature in January in Juneau39
    39°F sea temperature

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The January weather guide for Alaska (Juneau) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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More about the USA

How cold is it in Juneau in January?

Daytime temperatures usually reach 21°F in Juneau in January, falling to 7°F at night.

How sunny is it in Juneau in January?

There are normally 3 hours of bright sunshine each day in Juneau in January - that's 43% of daylight hours.

How warm is the sea around Juneau in January?

The average sea temperature around Juneau in January is 37°F.

Does it rain in Juneau in January?

There are usually 8 days with some rain in Juneau in January and the average monthly rainfall is 1.1 inches. Rain may fall as snow in this month.

Juneau January sunrise & sunset times

Browse the sunrise and sunset times for Juneau in January 2026. Select a month to view Juneau sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 08:45 15:18
Friday, 16th January 2026 08:31 15:45
Saturday, 31st January 2026 08:04 16:19

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