Juneau weather in May 2025

Expect 11°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Juneau in May. Check more long-term weather averages for Juneau in May before you book your next holiday to Alaska in 2025/2026.

  • 11°C maximum daytime temperature in May in Juneau11
    11°C max day temperature
  • 7 hours of sunshine per day
  • 15 days with some rainfall in May in Juneau15
    15 days with some rainfall
  • 2°C minimum night-time temperature in May in Juneau2
    2°C min night temperature
  • 17 hours of daylight per day in May in Juneau17
    17 hours of daylight per day
  • No heat & humidity in May in Juneau0
    No heat & humidity
  • 101 mm monthly rainfall in May in Juneau101
    101 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in May in Juneau4
    4 (Moderate) UV index
  • 7°C sea temperature in May in Juneau7
    7°C sea temperature

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The May 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 / mm)  |  Imperial (°F / inches)

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How warm is it in Juneau in May?

Daytime temperatures usually reach 11°C in Juneau in May, falling to 2°C at night.

How sunny is it in Juneau in May?

There are normally 7 hours of bright sunshine each day in Juneau in May - that's 43% of daylight hours.

Is the sea cold around Juneau in May?

The average sea temperature around Juneau in May is 7°C.

Does it rain in Juneau in May?

There are usually 15 days with some rain in Juneau in May and the average monthly rainfall is 101mm.

Juneau May sunrise & sunset times

Browse the sunrise and sunset times for Juneau in May 2025. Select a month to view Juneau sunrise and sunset times for the next 12 months.


Date Sunrise times Sunset times
Thursday, 1st May 2025 04:02 19:49
Friday, 16th May 2025 03:28 20:21
Saturday, 31st May 2025 03:03 20:49

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