Best Time to See Otters in New Hampshire
March, January and April is the best time to see otters in New Hampshire. Based on 298 verified iNaturalist observations, here is exactly when otters are most active across the year in New Hampshire.
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 · Peter Nathaniel Boyer CC BY
North American River Otter · Jaime McGuigan CC BY
North American River Otter · Jaime McGuigan CC BY
298 verified observations of otters in New Hampshire, recorded across 12 months of the year on iNaturalist.
When otters are recorded in New Hampshire
Peak month
March
38 records (12.8% of the year)
| Month | Observations | Share |
|---|---|---|
| Januarypeak | 33 | 11.1% |
| February | 31 | 10.4% |
| Marchpeak | 38 | 12.8% |
| Aprilpeak | 32 | 10.7% |
| May | 22 | 7.4% |
| June | 20 | 6.7% |
| July | 20 | 6.7% |
| August | 12 | 4% |
| September | 21 | 7% |
| October | 20 | 6.7% |
| November | 29 | 9.7% |
| December | 20 | 6.7% |
Otters you are most likely to see
| Species | Verified observations |
|---|---|
| North American River Otter | 298 |
Weather to expect, source Open-Meteo
Typical weather in New Hampshire
Recent typical conditions by month, so you can plan a trip around both when otters are active and what the weather is doing. The best months to look for otters sit around 8 to 45 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Janbest time | 24°F | 8°F | 4.1" |
| Feb | 25°F | 8°F | 3.6" |
| Marbest time | 34°F | 18°F | 3.3" |
| Aprbest time | 45°F | 29°F | 5.2" |
| May | 58°F | 40°F | 4.1" |
| Jun | 67°F | 50°F | 4.8" |
| Jul | 72°F | 57°F | 7.1" |
| Aug | 70°F | 56°F | 4.5" |
| Sep | 63°F | 48°F | 4.5" |
| Oct | 53°F | 39°F | 5.6" |
| Nov | 38°F | 24°F | 4.2" |
| Dec | 30°F | 17°F | 6" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for New Hampshire. Weather varies year to year, so treat these as a guide.
More on otters in New Hampshire:
Sightings of otters in New Hampshire peak in March, when 38 of the year's 298 verified observations are logged — about 12.8% of the annual total. Activity stays high through March, January and April.
The quietest stretch is August, when otters are hardest to find — August sees just 12 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The otters you are most likely to encounter in New Hampshire are North American River Otter — the most-recorded species in the state. Each keeps its own seasonal rhythm, but the month-by-month pattern above reflects every reported sighting together.
Where to go
Best places to see otters in New Hampshire
- Appalachian National Scenic Trail — National Scenic Trail
- Saint-Gaudens National Historical Park — National Historical Park
Frequently asked questions
What is the best month to see otters in New Hampshire?+
March is the single best month, and the broader peak window runs through March, January and April, based on 298 verified iNaturalist observations.
When are otters hardest to see in New Hampshire?+
August is the quietest month for otters in New Hampshire, with only 12 verified records.
Are otters active year-round in New Hampshire?+
Otters are recorded in 12 of 12 months in New Hampshire, so they can be seen year-round, with a clear peak in March.
More places to see otters
More wildlife in New Hampshire