Boise weather in September (Idaho, United States of America)
How does the weather in Boise usually fare in September? Want to know if it's a good time to visit? This page has all the weather details for the month.
Temperatures
Expect perfect weather in Boise during September, which means high temperatures and low rainfall. The temperature during the day can rise to approximately 27°C. At night, it falls to around 10°C.
Precipitation
Boise in September usually receives low rainfall, averaging around 13 mm for the month. Historically, approximately 5 days this month are expected to have rain.Average sunshine
Expect sunny days throughout the month, with an estimated 303 hours of sunshine. Making it a pleasant time to visit Boise.If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit. May, June, August, September and October generally stand out with the best circumstances. While January, November and December tend to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Boise climate page with graphs.
Boise, monthly averages in September
Min Temperature
10°C
Max Temperature
27°C
Chance of Rain
16%
Precipitation
13 mm
Rainy days
5 days
Humidity
45%
Sunshine
303 hours
Percentage Sunshine
81%
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 Boise.
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.
