Washington weather in May 2025

Expect 24°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Washington in May. Check more long-term weather averages for Washington in May before you book your next holiday to D.C. in 2025/2026.

  • 24°C maximum daytime temperature in May in Washington24
    24°C max day temperature
  • 8 hours of sunshine per day
  • 11 days with some rainfall in May in Washington11
    11 days with some rainfall
  • 12°C minimum night-time temperature in May in Washington12
    12°C min night temperature
  • 14 hours of daylight per day in May in Washington14
    14 hours of daylight per day
  • No heat & humidity in May in Washington0
    No heat & humidity
  • 96 mm monthly rainfall in May in Washington96
    96 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in May in Washington8
    8 (Very High) UV index

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The May weather guide for D.C., represented by Washington, (Washington) 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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More about the USA

How hot is it in Washington in May?

Daytime temperatures usually reach 24°C in Washington in May, falling to 12°C at night.

How sunny is it in Washington in May?

There are normally 8 hours of bright sunshine each day in Washington in May - that's 59% of daylight hours.

Does it rain in Washington in May?

There are usually 11 days with some rain in Washington in May and the average monthly rainfall is 96mm.

Washington May sunrise & sunset times

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


Date Sunrise times Sunset times
Thursday, 1st May 2025 05:10 19:01
Friday, 16th May 2025 04:54 19:15
Saturday, 31st May 2025 04:45 19:27

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