Otters in Colorado in November

Yes, November is one of the best months to see otters in Colorado. It is the 3rd busiest month of the year, with 13 of the 135 sightings logged across the year (9.6%), 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 June 28, 2026.

North American River Otter photographed in ColoradoNorth American River Otter photographed in ColoradoNorth American River Otter photographed in Colorado
Photos by iNaturalist observers, used under Creative Commons.

Peak month for otters in Colorado

9.6%

of yearly sightings

13

records in November

#3

busiest month of 12

135

verified records a year

October 7.4%, November 9.6%, December 5.2%. Busiest month is April at 21.5%.

Best months: April, March, November

135 verified observations of otters in Colorado, recorded across 12 months of the year on iNaturalist.

When otters are recorded in Colorado

Peak month

April

29 records (21.5% of the year)

Quietest month

July

5 records

MonthObservationsShare
January75.2%
February85.9%
Marchpeak1611.9%
Aprilpeak2921.5%
May75.2%
June96.7%
July53.7%
August128.9%
September128.9%
October107.4%
Novemberpeak139.6%
December75.2%

Otters you are most likely to see

SpeciesVerified observations
North American River Otter135

In Colorado, November carries 9.6% of the year's otters sightings, about 1.3 points above an even month-to-month split. That makes it the 3rd busiest of the twelve months, out of 12 months with recorded activity.

Activity is rising from October (7.4%) into November, and it heads toward December (5.2%) after. This is right inside the peak window, so November is one of the surest months to plan a trip around.

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

Which otters you are most likely to see

  • North American River Otter135 records
Plan your tripBent's Old Fort National Historic Site

Plan your otter 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 otters in Colorado in November?+

Yes. November accounts for 13 of the 135 verified otters sightings logged in Colorado across the year, which is 9.6% of the annual total.

Is November a good time to see otters in Colorado?+

November is one of the best months. It ranks 3rd of the year and sits inside the peak window of April, March and November.

What month is best for otters in Colorado?+

April is the single busiest month, with the broader peak running through April, March and November, based on 135 verified observations.

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

The most-recorded species in Colorado are North American River Otter, based on all-time iNaturalist counts.