Moose in Colorado in September

Yes, September is a good month to see moose in Colorado. It is the 5th busiest month of the year, with 599 of the 5,738 sightings logged across the year (10.4%), based on verified iNaturalist records.

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By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 2, 2026.

Moose photographed in ColoradoShiras Moose photographed in ColoradoMoose photographed in Colorado
Photos by iNaturalist observers, used under Creative Commons.

Good month for moose in Colorado

10.4%

of yearly sightings

599

records in September

#5

busiest month of 12

5,738

verified records a year

August 17.6%, September 10.4%, October 4.8%. Busiest month is June at 22.6%.

Best months: June, July, AugustPeak season right now

5,738 verified observations of moose in Colorado, recorded across 12 months of the year on iNaturalist.

When moose are recorded in Colorado

Peak month

June

1,295 records (22.6% of the year)

Quietest month

February

61 records

MonthObservationsShare
January861.5%
February611.1%
March1081.9%
April2173.8%
May68411.9%
Junepeak1,29522.6%
Julypeak1,22621.4%
Augustpeak1,01217.6%
September59910.4%
October2744.8%
November971.7%
December791.4%

Moose you are most likely to see

SpeciesVerified observations
Moose5,704

In Colorado, September carries 10.4% of the year's moose sightings, about 2.1 points above an even month-to-month split. That makes it the 5th busiest of the twelve months, out of 12 months with recorded activity.

Activity is easing off from August (17.6%) into September, and it heads toward October (4.8%) after. The busiest month is June (22.6%), so if timing is flexible, that window is the safer bet.

The moose most often recorded in Colorado are Moose. Those counts are annual totals rather than a September split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in September itself.

Which moose you are most likely to see

  • Moose5,704 records
Plan your tripBent's Old Fort National Historic Site

Plan your moose trip in Colorado

Start with live tours near Bent's Old Fort National Historic Site, then compare a nearby stay and a broader wildlife backup before you lock in the trip.

Frequently asked questions

Can you see moose in Colorado in September?+

Yes. September accounts for 599 of the 5,738 verified moose sightings logged in Colorado across the year, which is 10.4% of the annual total.

Is September a good time to see moose in Colorado?+

September is the 5th busiest month. It is workable, though June and July is the stronger window for a reliable sighting.

What month is best for moose in Colorado?+

June is the single busiest month, with the broader peak running through June, July and August, based on 5,738 verified observations.

Which moose are you most likely to see in Colorado?+

The most-recorded species in Colorado are Moose, based on all-time iNaturalist counts.