Big Sky weather in September (Montana, United States of America)
Thinking of visiting Big Sky in September? Check the weather first! Check out this detailed guide to the month’s weather conditions.
Temperatures
September in Big Sky generally includes pleasant temperatures and moderate rainfall. During September, you’ll experience the summer season. Expect daytime highs to reach approximately 19°C, with nighttime lows dipping to around 3°C.
Precipitation
Big Sky in September usually receives moderate rainfall, averaging around 46 mm for the month. On average, there are about 12 days with rain during this month.Should you favor a climate that's both dry and comfortably warm July and August typically offer the most agreeable circumstances. On the other hand, January, February, March, April, October, November 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 Big Sky climate page with graphs.
Big Sky, monthly averages in September
Min Temperature
3°C
Max Temperature
19°C
Chance of Rain
39%
Precipitation
46 mm
Rainy days
12 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?
For visitors traveling to Big Sky, 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.
Interested in more climate information?
This site provides you with all the information you need about the climate in Big Sky.
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.
