Otters in Illinois in February
Yes, February is one of the best months to see otters in Illinois. It is the 1st busiest month of the year, with 16 of the 128 sightings logged across the year (12.5%), based on verified iNaturalist records.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.
Peak month for otters in Illinois
12.5%
of yearly sightings
16
records in February
#1
busiest month of 12
128
verified records a year
January 5.5%, February 12.5%, March 12.5%. Busiest month is February at 12.5%.
128 verified observations of otters in Illinois, recorded across 12 months of the year on iNaturalist.
When otters are recorded in Illinois
Peak month
February
16 records (12.5% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 7 | 5.5% |
| Februarypeak | 16 | 12.5% |
| Marchpeak | 16 | 12.5% |
| April | 11 | 8.6% |
| May | 9 | 7% |
| Junepeak | 15 | 11.7% |
| July | 8 | 6.3% |
| August | 7 | 5.5% |
| September | 10 | 7.8% |
| October | 9 | 7% |
| November | 6 | 4.7% |
| December | 14 | 10.9% |
Otters you are most likely to see
| Species | Verified observations |
|---|---|
| North American River Otter | 128 |
In Illinois, February carries 12.5% of the year's otters sightings, about 4.2 points above an even month-to-month split. That makes it the 1st busiest of the twelve months, out of 12 months with recorded activity.
Activity is rising from January (5.5%) into February, and it heads toward March (12.5%) after. This is right inside the peak window, so February is one of the surest months to plan a trip around.
The otters most often recorded in Illinois are North American River Otter. Those counts are annual totals rather than a February split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in February itself.
Which otters you are most likely to see
- North American River Otter128 records
Plan your otter trip in Illinois
Start with live tours near Lewis & Clark National Historic Trail, then compare a nearby stay and a broader wildlife backup before you lock in the trip.
GetYourGuide
Live tours nearbySee live tours near Lewis & Clark National Historic Trail
Use the live GetYourGuide widget to compare local departures and activity styles close to the main otter viewing area.
Booking.com
Stay nearbyStay near Lewis & Clark National Historic Trail
Compare hotels, cabins and lodges close to the best otter viewing area in Illinois.
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Broader backupBook a otter tour in Illinois
Compare guided wildlife tours, boat trips and nature experiences if you want a second travel network beyond the live widget.
Frequently asked questions
Can you see otters in Illinois in February?+
Yes. February accounts for 16 of the 128 verified otters sightings logged in Illinois across the year, which is 12.5% of the annual total.
Is February a good time to see otters in Illinois?+
February is one of the best months. It ranks 1st of the year and sits inside the peak window of February, March and June.
What month is best for otters in Illinois?+
February is the single busiest month, with the broader peak running through February, March and June, based on 128 verified observations.
Which otters are you most likely to see in Illinois?+
The most-recorded species in Illinois are North American River Otter, based on all-time iNaturalist counts.
See otters in Illinois in other months
More wildlife in Illinois