D.C. weather in May 2025

Expect daytime maximum temperatures of 24°C in D.C., USA in May based on long-term weather averages. There are 8 hours of sunshine per day on average with 11 days with some rainfall and typically 96 mm of rainfall in the month.

  • 24°C maximum daytime temperature in May in D.C. (Washington)24
    24°C max day temperature
  • 8 hours of sunshine per day
  • 11 days with some rainfall in May in D.C. (Washington)11
    11 days with some rainfall
  • 12°C minimum night-time temperature in May in D.C. (Washington)12
    12°C min night temperature
  • 14 hours of daylight per day in May in D.C. (Washington)14
    14 hours of daylight per day
  • No heat & humidity in May in D.C. (Washington)0
    No heat & humidity
  • 96 mm monthly rainfall in May in D.C. (Washington)96
    96 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in May in D.C. (Washington)8
    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 D.C. in May?

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

How sunny is it in D.C. in May?

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

Does it rain in D.C. in May?

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

D.C. May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

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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