Alaska weather in May 2025

Expect 12°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Alaska in May. Check more long-term weather averages for Alaska in May before you book your next holiday to Alaska in 2025/2026.

  • 12°C maximum daytime temperature in May in Alaska (Anchorage)12
    12°C max day temperature
  • 9 hours of sunshine per day
  • 8 days with some rainfall in May in Alaska (Anchorage)8
    8 days with some rainfall
  • 4°C minimum night-time temperature in May in Alaska (Anchorage)4
    4°C min night temperature
  • 18 hours of daylight per day in May in Alaska (Anchorage)18
    18 hours of daylight per day
  • No heat & humidity in May in Alaska (Anchorage)0
    No heat & humidity
  • 20 mm monthly rainfall in May in Alaska (Anchorage)20
    20 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in May in Alaska (Anchorage)4
    4 (Moderate) UV index
  • 5°C sea temperature in May in Alaska (Anchorage)5
    5°C sea temperature

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The May weather guide for Alaska (Anchorage) 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.

Top Alaska destinations

Below are average maximum temperatures at popular countries, regions and places in Alaska in May. Select a holiday destination to see more weather parameters.

All Alaska destinations

Metric (°C / mm)  |  Imperial (°F / inches)

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More about the USA

How warm is it in Alaska in May?

Daytime temperatures usually reach 12°C in Anchorage, Alaska in May, falling to 4°C at night.

How sunny is it in Alaska in May?

There are normally 9 hours of bright sunshine each day in Anchorage, Alaska in May - that's 53% of daylight hours.

Is the sea cold around Alaska in May?

The average sea temperature around Anchorage, Alaska in May is 5°C.

Does it rain in Alaska in May?

There are usually 8 days with some rain in Anchorage, Alaska in May and the average monthly rainfall is 20mm.

Alaska May sunrise & sunset times

Browse the sunrise and sunset times for Alaska in May 2025. Select a month to view Alaska sunrise and sunset times for the next 12 months. The Alaska sunrise and sunset times shown below are for Anchorage.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 04:49 21:06
Friday, 16th May 2025 04:09 21:45
Saturday, 31st May 2025 03:37 22:19

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