Best Time to See Bats in Idaho
August, June and July is the best time to see bats in Idaho. Based on 341 verified iNaturalist observations, here is exactly when bats are most active across the year in Idaho.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.
Silver-haired Bat · Matthew Cozart CC BY-ND
Silver-haired Bat · Tyler Barron CC BY
Yuma Myotis · Wendy McCrady CC BY
341 verified observations of bats in Idaho, recorded across 12 months of the year on iNaturalist.
When bats are recorded in Idaho
Peak month
August
127 records (37.2% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 1 | 0.3% |
| February | 2 | 0.6% |
| March | 4 | 1.2% |
| April | 9 | 2.6% |
| May | 25 | 7.3% |
| Junepeak | 56 | 16.4% |
| Julypeak | 52 | 15.2% |
| Augustpeak | 127 | 37.2% |
| September | 43 | 12.6% |
| October | 18 | 5.3% |
| November | 3 | 0.9% |
| December | 1 | 0.3% |
Bats you are most likely to see
| Species | Verified observations |
|---|---|
| Little Brown Bat | 37 |
| Silver-haired Bat | 31 |
| Big Brown Bat | 18 |
| Townsend's Big-eared Bat | 16 |
| Long-eared Myotis | 13 |
| Northern Hoary Bat | 12 |
| Pallid Bat | 9 |
| Western Small-footed Myotis | 5 |
Weather to expect, source Open-Meteo
Typical weather in Idaho
Recent typical conditions by month, so you can plan a trip around both when bats are active and what the weather is doing. The best months to look for bats sit around 44 to 82 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 31°F | 13°F | 1.6" |
| Feb | 32°F | 14°F | 2.4" |
| Mar | 41°F | 20°F | 1.7" |
| Apr | 48°F | 25°F | 1.9" |
| May | 60°F | 35°F | 2.9" |
| Junbest time | 71°F | 44°F | 2.9" |
| Julbest time | 82°F | 51°F | 1.2" |
| Augbest time | 81°F | 51°F | 1.9" |
| Sep | 71°F | 43°F | 1.9" |
| Oct | 54°F | 29°F | 1.8" |
| Nov | 40°F | 19°F | 1.8" |
| Dec | 31°F | 13°F | 1.8" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Idaho. Weather varies year to year, so treat these as a guide.
More on bats in Idaho:
Sightings of bats in Idaho peak in August, when 127 of the year's 341 verified observations are logged — about 37.2% of the annual total. Activity stays high through August, June and July.
The quietest stretch is January and December, when bats are hardest to find — January sees just 1 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The bats you are most likely to encounter in Idaho are Little Brown Bat, Silver-haired Bat and Big Brown Bat — 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 bats in Idaho
- City Of Rocks National Reserve — National Reserve
- Craters Of The Moon National Monument & Preserve — National Monument & Preserve
- Hagerman Fossil Beds National Monument — National Monument
- Lewis & Clark National Historic Trail — National Historic Trail
- Nez Perce National Historical Park — National Historical Park
- Yellowstone National Park — National Park
Gear to see them
Frequently asked questions
What is the best month to see bats in Idaho?+
August is the single best month, and the broader peak window runs through August, June and July, based on 341 verified iNaturalist observations.
When are bats hardest to see in Idaho?+
January is the quietest month for bats in Idaho, with only 1 verified records.
Are bats active year-round in Idaho?+
Bats are recorded in 12 of 12 months in Idaho, so they can be seen year-round, with a clear peak in August.