Sunnyside weather in September (Washington State, United States of America)
How does the September weather in Sunnyside compare to other months? Want to know if it's a good time to visit? This page has all the weather details for the month.
Temperatures
The weather in Sunnyside is usually perfect in September, characterized by high temperatures and low rainfall. Anticipate daytime highs near 26°C, and cooler nights with temperatures around 8°C.
Precipitation
Sunnyside in September usually receives low rainfall, averaging around 8 mm for the month. Historically, the month has about 3 days of rain.If you favor pleasant temperatures and minimal rainfall, September is one of the better months to visit Sunnyside. April, May, June, July, August, September and October typically offer the most agreeable circumstances. On the other hand, January and December tend to be characterized by conditions that may not be as optimal.
For an in-depth look at the yearly conditions, visit our specialized Sunnyside climate page with graphs.
Sunnyside, monthly averages in September
Min Temperature
8°C
Max Temperature
26°C
Chance of Rain
11%
Precipitation
8 mm
Rainy days
3 days
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.
perfect weather
pleasant
tolerable
unpleasant
poor
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 Sunnyside.
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.
