Walla Walla weather in April 2026

Expect daytime maximum temperatures of 16°C in Walla Walla, Washington State in April based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 43 mm of rainfall in the month.

  • 16°C maximum daytime temperature in April in Walla Walla16
    16°C max day temperature
  • 7 hours of sunshine per day
  • 9 days with some rainfall in April in Walla Walla9
    9 days with some rainfall
  • 4°C minimum night-time temperature in April in Walla Walla4
    4°C min night temperature
  • 14 hours of daylight per day in April in Walla Walla14
    14 hours of daylight per day
  • No heat & humidity in April in Walla Walla0
    No heat & humidity
  • 43 mm monthly rainfall in April in Walla Walla43
    43 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in April in Walla Walla5
    5 (Moderate) UV index

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The April weather guide for Washington State (Walla Walla) 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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How warm is it in Walla Walla in April?

Daytime temperatures usually reach 16°C in Walla Walla in April, falling to 4°C at night.

How sunny is it in Walla Walla in April?

There are normally 7 hours of bright sunshine each day in Walla Walla in April - that's 54% of daylight hours.

Does it rain in Walla Walla in April?

There are usually 9 days with some rain in Walla Walla in April and the average monthly rainfall is 43mm.

Walla Walla April sunrise & sunset times

Browse the sunrise and sunset times for Walla Walla in April 2026. Select a month to view Walla Walla sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st April 2026 05:33 18:22
Wednesday, 15th April 2026 05:07 18:41
Thursday, 30th April 2026 04:41 19:00

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