Otters in Minnesota in May

Yes, May is one of the best months to see otters in Minnesota. It is the 3rd busiest month of the year, with 127 of the 1,190 sightings logged across the year (10.7%), 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 MinnesotaNorth American River Otter photographed in MinnesotaNorth American River Otter photographed in Minnesota
Photos by iNaturalist observers, used under Creative Commons.

Peak month for otters in Minnesota

10.7%

of yearly sightings

127

records in May

#3

busiest month of 12

1,190

verified records a year

April 13.2%, May 10.7%, June 4.3%. Busiest month is April at 13.2%.

Best months: April, March, May

1,190 verified observations of otters in Minnesota, recorded across 12 months of the year on iNaturalist.

When otters are recorded in Minnesota

Peak month

April

157 records (13.2% of the year)

Quietest month

June

51 records

MonthObservationsShare
January1008.4%
February1099.2%
Marchpeak12910.8%
Aprilpeak15713.2%
Maypeak12710.7%
June514.3%
July685.7%
August907.6%
September857.1%
October12210.3%
November796.6%
December736.1%

Otters you are most likely to see

SpeciesVerified observations
North American River Otter1,190

In Minnesota, May carries 10.7% of the year's otters sightings, about 2.4 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 easing off from April (13.2%) into May, and it heads toward June (4.3%) after. This is right inside the peak window, so May is one of the surest months to plan a trip around.

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

Which otters you are most likely to see

  • North American River Otter1,190 records
Plan your tripGrand Portage National Monument

Plan your otter trip in Minnesota

Start with live tours near Grand Portage National Monument, then compare a nearby stay and a broader wildlife backup before you lock in the trip.

Frequently asked questions

Can you see otters in Minnesota in May?+

Yes. May accounts for 127 of the 1,190 verified otters sightings logged in Minnesota across the year, which is 10.7% of the annual total.

Is May a good time to see otters in Minnesota?+

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

What month is best for otters in Minnesota?+

April is the single busiest month, with the broader peak running through April, March and May, based on 1,190 verified observations.

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

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