Juneau weather in May 2026

Expect daytime maximum temperatures of 52°F in Juneau, Alaska in May based on long-term weather averages. There are 7 hours of sunshine per day on average with 15 days with some rainfall and typically 4.0 inches of rainfall in the month.

  • 52°F maximum daytime temperature in May in Juneau52
    52°F max day temperature
  • 7 hours of sunshine per day
  • 15 days with some rainfall in May in Juneau15
    15 days with some rainfall
  • 36°F minimum night-time temperature in May in Juneau36
    36°F 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
  • 4.0 inches monthly rainfall in May in Juneau4.0
    4.0 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in May in Juneau4
    4 (Moderate) UV index
  • 45°F sea temperature in May in Juneau45
    45°F 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)  |  Imperial (°F)

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How warm is it in Juneau in May?

Daytime temperatures usually reach 52°F in Juneau in May, falling to 36°F 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.

How warm is the sea around Juneau in May?

The average sea temperature around Juneau in May is 45°F.

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 4.0 inches.

Juneau May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st May 2026 04:03 19:48
Saturday, 16th May 2026 03:29 20:21
Sunday, 31st May 2026 03:03 20:49

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