Diablo Lake weather in May 2025

Expect 55°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Diablo Lake in May. Check more long-term weather averages for Diablo Lake in May before you book your next holiday to Washington State in 2025/2026.

  • 55°F maximum daytime temperature in May in Diablo Lake55
    55°F max day temperature
  • 7 hours of sunshine per day
  • 12 days with some rainfall in May in Diablo Lake12
    12 days with some rainfall
  • 36°F minimum night-time temperature in May in Diablo Lake36
    36°F min night temperature
  • 15 hours of daylight per day in May in Diablo Lake15
    15 hours of daylight per day
  • No heat & humidity in May in Diablo Lake0
    No heat & humidity
  • 2.4 inches monthly rainfall in May in Diablo Lake2.4
    2.4 inches of monthly rainfall
  • UV (maximum) index 6 (High) in May in Diablo Lake6
    6 (High) UV index

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The May weather guide for Washington State (Diablo Lake) 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 Diablo Lake in May?

Daytime temperatures usually reach 55°F in Diablo Lake in May, falling to 36°F at night.

How sunny is it in Diablo Lake in May?

There are normally 7 hours of bright sunshine each day in Diablo Lake in May - that's 46% of daylight hours.

Does it rain in Diablo Lake in May?

There are usually 12 days with some rain in Diablo Lake in May and the average monthly rainfall is 2.4 inches.

Diablo Lake May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 04:44 19:20
Friday, 16th May 2025 04:21 19:41
Saturday, 31st May 2025 04:07 19:59

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