Best time to visit Mattawa, WA
A month-by-month travel weather guide based on NOAA 30-year climate normals.
The most comfortable travel window in Mattawa runs from April through June — 3 months of pleasant temperatures and modest rainfall.
Winter weather. Plan around weather; good for snow sports if applicable.
Daylight ≈ 8h 45m
Mild but on the chilly side. Pack a jacket; great for hiking and city walks.
Daylight ≈ 10h 4m
Mild but on the chilly side. Pack a jacket; great for hiking and city walks.
Daylight ≈ 11h 39m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 13h 21m
Sweet spot — comfortable highs in the 65-80°F range, mild nights, low rain. Ideal for nearly any outdoor plan.
Daylight ≈ 14h 50m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 15h 35m
Summer heat. Avoid midday exertion; aim for morning and evening activities.
Daylight ≈ 15h 18m
Summer heat. Avoid midday exertion; aim for morning and evening activities.
Daylight ≈ 14h 1m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 12h 19m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 10h 37m
Mild but on the chilly side. Pack a jacket; great for hiking and city walks.
Daylight ≈ 9h 7m
Winter weather. Plan around weather; good for snow sports if applicable.
Daylight ≈ 8h 22m
Looking for similar climates? See Mattawa's climate twins. Or jump straight to the full climate profile.