Best Time to See Bats in Ohio
July, June and May is the best time to see bats in Ohio. Based on 1,916 verified iNaturalist observations, here is exactly when bats are most active across the year in Ohio.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.
Mouse-eared Bats · Nick Chirico CC BY
Eastern Red Bat · Joseph Morlan CC BY-SA
Silver-haired Bat · Meridith Boyer Teehan CC BY-ND
1,916 verified observations of bats in Ohio, recorded across 12 months of the year on iNaturalist.
When bats are recorded in Ohio
Peak month
July
490 records (25.6% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 34 | 1.8% |
| February | 32 | 1.7% |
| March | 97 | 5.1% |
| April | 185 | 9.7% |
| Maypeak | 239 | 12.5% |
| Junepeak | 289 | 15.1% |
| Julypeak | 490 | 25.6% |
| August | 202 | 10.5% |
| September | 150 | 7.8% |
| October | 99 | 5.2% |
| November | 71 | 3.7% |
| December | 28 | 1.5% |
Bats you are most likely to see
| Species | Verified observations |
|---|---|
| Big Brown Bat | 762 |
| Eastern Red Bat | 385 |
| Silver-haired Bat | 140 |
| Northern Hoary Bat | 93 |
| Tri-coloured Bat | 58 |
| Little Brown Bat | 54 |
| Northern Myotis | 21 |
| Evening Bat | 19 |
Weather to expect, source Open-Meteo
Typical weather in Ohio
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 51 to 82 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 37°F | 23°F | 3.9" |
| Feb | 40°F | 23°F | 4" |
| Mar | 51°F | 32°F | 4.7" |
| Apr | 59°F | 40°F | 4.4" |
| Maybest time | 69°F | 51°F | 4.7" |
| Junbest time | 78°F | 60°F | 4.8" |
| Julbest time | 82°F | 66°F | 4.1" |
| Aug | 80°F | 64°F | 4.1" |
| Sep | 75°F | 58°F | 2.3" |
| Oct | 64°F | 48°F | 3.7" |
| Nov | 49°F | 34°F | 2.5" |
| Dec | 43°F | 29°F | 3.3" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Ohio. Weather varies year to year, so treat these as a guide.
More on bats in Ohio:
Sightings of bats in Ohio peak in July, when 490 of the year's 1,916 verified observations are logged — about 25.6% of the annual total. Activity stays high through July, June and May.
The quietest stretch is December, February and January, when bats are hardest to find — December sees just 28 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 Ohio are Big Brown Bat, Eastern Red Bat and Silver-haired 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 Ohio
- Cuyahoga Valley National Park — National Park
- Lewis & Clark National Historic Trail — National Historic Trail
- North Country National Scenic Trail — National Scenic Trail
- Perry's Victory & International Peace Memorial — Memorial
- Charles Young Buffalo Soldiers National Monument — National Monument
- Dayton Aviation Heritage National Historical Park — National Historical Park
Gear to see them
Frequently asked questions
What is the best month to see bats in Ohio?+
July is the single best month, and the broader peak window runs through July, June and May, based on 1,916 verified iNaturalist observations.
When are bats hardest to see in Ohio?+
December is the quietest month for bats in Ohio, with only 28 verified records.
Are bats active year-round in Ohio?+
Bats are recorded in 12 of 12 months in Ohio, so they can be seen year-round, with a clear peak in July.
More places to see bats
More wildlife in Ohio