Walla Walla weather in September (Washington State, United States of America)
How's the weather trend in Walla Walla as September approaches? Explore our page to find a thorough overview of this month's weather conditions.
Temperatures
For September, the weather in Walla Walla is generally perfect, featuring high temperatures and low rainfall. During September, the summer season is in full swing. The daytime often sees temperatures reaching 26°C, but nighttime brings a cool-down to 12°C.
Precipitation
Walla Walla in September usually receives low rainfall, averaging around 15 mm for the month. This month experiences about 5 days of rain according to historical data.If you're inclined towards comfortable temperatures and drier conditions, September is a prime time to visit Walla Walla. May, June, July, August and September typically offer the best circumstances. While January, February, November and December tend to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Walla Walla climate page with graphs.
Walla Walla, monthly averages in September
Where to go in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month.
So, what should you wear in this month?
It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Interested in more climate information?
This site provides you with all the information you need about the climate in Walla Walla.
Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.