Rocky Mountain National Park weather in September (Colorado, United States of America)
Looking to travel to Rocky Mountain National Park in September? Here's what the weather might have in store during this month.
In September, Rocky Mountain National Park generally has moderate temperatures and moderate rainfall. Anticipate daytime temperatures around 15°C, while night temperatures can drop to 3°C.
Rocky Mountain National Park in September usually receives moderate rainfall, averaging around 61 mm for the month. Rain is expected on roughly 12 days.
In case you lean more towards enjoying temperate temperatures and rain-free days June, July and August typically offer the most optimal weather. In contrast, January, February, March, April, May, October, November and December tend to have less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Rocky Mountain National Park climate page with graphs.
Rocky Mountain National Park, monthly averages in September
Min Temperature
3°C
Max Temperature
15°C
Chance of Rain
38%
Precipitation
61 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 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 Rocky Mountain National Park in September?
Plan on layering your clothes. Some days or part of the day it will be nice and warm and some moments it can be a bit chilly. Bring a rain jacket in case it rains during your stay.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 Rocky Mountain National Park.
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.
