Sisters weather in September (Oregon, United States of America)
What can you expect from the weather in Sisters during September? This guide provides all the details you need.
In Sisters, September is characterized by high temperatures and low rainfall. September is a summer month. Throughout the daytime, temperatures often hover around 25°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 3°C.
Sisters in September usually receives low rainfall, averaging around 10 mm for the month. Typically around 3 days of rainfall is expected.
So this is a great month to visit if you prefer dry days with pleasant temperatures. May, June, July, August and September typically offer the most optimal weather. In contrast, January, February, November and December tend to have less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Sisters climate page with graphs.
Sisters, monthly averages in September
Min Temperature
3°C
Max Temperature
25°C
Chance of Rain
10%
Precipitation
10 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 in September and which places have the best weather conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in Sisters in September?
For visitors traveling to Sisters, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do in September.
Interested in more climate information?
Weather and Climate provides you with all the information you need about the climate in Sisters.
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 climate conditions. Find out where to go with our weather planner.
