Copper Mountain
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Copper Mountain Weather in September

Copper Mountain in September sees moderate daytime temperatures of 15°C (59°F) and nighttime lows of 1°C (34°F). Moderate rainfall is typical, with around 43 mm (1.7 in) for the month.

Rainfall in Copper Mountain in September

Past climate data indicates that roughly 12 days will see rain, totalling around 43 mm (1.7 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Copper Mountain in September

Expect highs of 15°C (59°F) in Copper Mountain in September, with nights dropping to around 1°C (34°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With lows around 1°C (34°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Should you favor a climate that's both dry and comfortably warm, July typically offers the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

Copper Mountain Temperature in September

Min Temperature
1°C (34°F)
Max Temperature
15°C (59°F)
Chance of Rain
39%
Precipitation
43 mm (1.7 in)
Rainy days
12 days
Humidity
51% *
* Data from: Aspen, the United States of America (68 KM, 42 Miles).

Copper Mountain Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Copper Mountain - and find the best time to visit.

Best Places 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. See all of the United States of America in September →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Copper Mountain in September

The weather can swing between comfortable and chilly in September, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Wet weather is likely, so pack waterproof gear for multiple rainy days.

What To Do in Copper Mountain in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Cycling
    6/10
  • Walking
    6/10
  • Camping
    5/10
  • Outdoor sports
    10/10

Copper Mountain 3-Day Forecast

More climate data for Copper Mountain

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.