Weather in Washington in August

General weather information about Washington

Average annual temperature is 10.6 °C

Absolute maximum temperature: 27.2 °C

Absolute minimum temperature: -4.0 °C

Number of sunny days: 87 days

Number of rainy days: 278 days

Look at detailed online map of Washington

* Weather data for Washington Ireland is based on climate observations for 2026 year

Washington air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)12.913.415.618.420.727.220.523.927.121.513.712.7
Average daytime temperature (°C)7.99.89.812.616.820.717.918.818.614.39.68.8
Average temperature (°C)5.57.26.88.912.716.514.715.314.811.07.06.9
Average night temperature (°C)3.14.54.25.38.512.411.512.211.07.94.54.5
Absolute minimum temperature (°C)-3.8-3.1-1.5-0.14.58.48.49.13.90.1-1.9-4.0

Washington monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)8.010.012.014.016.016.016.015.013.011.09.07.0
Daylight mean duration (h)8.29.811.914.015.916.916.414.712.710.68.77.6
Daylight minimum duration (h)7.08.010.013.015.016.015.013.011.09.07.07.0
Sunshine mean duration (h)3.53.64.17.49.711.48.27.76.64.84.52.1
Precipitation (mm)81171368040701609315114961103
Sunny days815451612107685
Rainy days231327251518303123252226
Snow days000000000000

Washington - weather forecast by months

Washington weather in januaryWashington weather in februaryWashington weather in marchWashington weather in aprilWashington weather in mayWashington weather in juneWashington weather in julyWashington weather in augustWashington weather in septemberWashington weather in octoberWashington weather in novemberWashington weather in december

Best time to visit Washington:

The best time to visit Washington during the most sunny months:

  • May — 9.7(h)
  • June — 11.4(h)
  • July — 8.2(h)
  • August — 7.7(h)

Months with the longest average daylight duration in Washington:

  • May — 15.9(h)
  • June — 16.9(h)
  • July — 16.4(h)

The largest precipitation sum in Washington is at

  • March — 136(mm)
  • July — 160(mm)
  • September — 151(mm)
  • October — 149(mm)

    • Weather forecast in the closest to Washington admin centers

    Weather forecast in the closest towns to Washington

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    Frequently asked questions

    When is the best time to visit Washington?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Washington.
    What is the weather like in Washington?
    See average temperature, rainfall and daylight hours for Washington by month in the table above.
    How many sunny days does Washington have?
    The monthly weather statistics above show sunshine and rainfall patterns for Washington throughout the year.