Mountain air

Leavenworth, Washington weather in August

Temperature, rain and sunshine in August: long-term averages from 30 years of weather data, not a forecast.

69

Holiday weather in August

Good

Best time to visit: May – June, September

What is the weather like in Leavenworth, Washington in August?

In August, Leavenworth, Washington is hot: daytime highs average 29 °C, and nights cool down to about 15 °C. With around 11 hours of sunshine a day, there is plenty of sun. Rain is rare: about 2 days bring 10 mm in total. On about 15 days the thermometer climbs to 30 °C or more. All in all, August is a good month for a holiday in Leavenworth, Washington.

August compared

How the weather changes from July to September. Tap a month to open it.

JulyJulAugustAugSeptemberSep
Score666996
Day30°29°24°
Night15°15°11°
Sun12 h11 h8 h
Rain days224

More details for August

Daylight
14 h 20 min05:57 – 20:18
UV index
7 · highclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
12 km/haverage daily peakAll months
Cloud cover
32 %on averageAll months
Hot days
15 days30 °C or moreAll months
Snow days
0 days1 cm or more of fresh snowAll months
Time zone
UTC−7America/Los_Angeles

How the score comes together

  • Temperatureweight 50 %37 %
  • Sunshineweight 20 %100 %
  • Few rainy daysweight 30 %100 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Mountain air”.

What to pack in August

  • Sunscreen
  • Sunglasses & sun hat
  • Light, breathable clothes
  • Water bottle – drink plenty
  • A jumper for the evenings

Leavenworth, Washington in August: quick answers

Is Leavenworth, Washington hot in August?

Yes. In August, Leavenworth, Washington is hot: daytime highs average 29 °C and nights stay around 15 °C. On about 15 days the thermometer climbs to 30 °C or more.

Does it rain much in Leavenworth, Washington in August?

Rain is rare: about 2 days bring 10 mm in total.

Leavenworth, Washington month by month

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences