Hillsboro weather in September (Oregon, United States of America)
What can you expect from the weather in Hillsboro during September? Wondering if it's the right time to visit? Browse this page for a comprehensive overview of the weather conditions for that month.
In Hillsboro, September is characterized by high temperatures and moderate rainfall. September falls within the summer season. Daytime temperatures hover around 25°C, while nights can cool down to about 10°C.
Hillsboro in September usually receives moderate rainfall, averaging around 36 mm for the month. When we look at the climate data from the last 30 years, we can expect around 9 days of rain.
The city usually sees around 236 hours of sunlight, indicating many sunny days.
If you're inclined towards comfortable temperatures and drier conditions, September is a prime time to visit Hillsboro. May, June, July, August and September typically offer the best circumstances. While January, February, March, November and December tend to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Hillsboro climate page with graphs.
Hillsboro, monthly averages in September
Min Temperature
10°C
Max Temperature
25°C
Chance of Rain
30%
Precipitation
36 mm
Rainy days
9 days
Humidity
69% *
Sunshine
236 hours *
Percentage Sunshine
*
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 Hillsboro in September?
For visitors traveling to Hillsboro, 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. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do in September.
Interested in more climate information?
This site provides you with all the information you need about the climate in Hillsboro.
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.
