Best Time to See Great Blue Herons in Indiana
May, June and April is the best time to see great blue herons in Indiana. Based on 2,859 verified iNaturalist observations, here is exactly when great blue herons are most active across the year in Indiana.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 20, 2026.
Great Blue Heron · Public domain CC0
Great Blue Heron · Public domain CC0
Great Blue Heron · Cait CC BY-ND
2,859 verified observations of great blue herons in Indiana, recorded across 12 months of the year on iNaturalist.
When great blue herons are recorded in Indiana
Peak month
May
459 records (16.1% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 77 | 2.7% |
| February | 78 | 2.7% |
| March | 158 | 5.5% |
| Aprilpeak | 391 | 13.7% |
| Maypeak | 459 | 16.1% |
| Junepeak | 395 | 13.8% |
| July | 284 | 9.9% |
| August | 290 | 10.1% |
| September | 308 | 10.8% |
| October | 233 | 8.1% |
| November | 111 | 3.9% |
| December | 75 | 2.6% |
Great Blue Herons you are most likely to see
| Species | Verified observations |
|---|---|
| Great Blue Heron | 2,859 |
Weather to expect, source Open-Meteo
Typical weather in Indiana
Recent typical conditions by month, so you can plan a trip around both when great blue herons are active and what the weather is doing. The best months to look for great blue herons sit around 42 to 81 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 38°F | 24°F | 3.6" |
| Feb | 41°F | 24°F | 3.7" |
| Mar | 52°F | 33°F | 5.3" |
| Aprbest time | 61°F | 42°F | 3.6" |
| Maybest time | 71°F | 53°F | 4.5" |
| Junbest time | 81°F | 63°F | 3.2" |
| Jul | 84°F | 67°F | 4.7" |
| Aug | 83°F | 66°F | 3.6" |
| Sep | 78°F | 60°F | 1.8" |
| Oct | 65°F | 48°F | 4.4" |
| Nov | 51°F | 34°F | 2.3" |
| Dec | 44°F | 29°F | 3" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Indiana. Weather varies year to year, so treat these as a guide.
Sightings of great blue herons in Indiana peak in May, when 459 of the year's 2,859 verified observations are logged — about 16.1% of the annual total. Activity stays high through May, June and April.
The quietest stretch is December, January and February, when great blue herons are hardest to find — December sees just 75 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The great blue herons you are most likely to encounter in Indiana are Great Blue Heron — 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 great blue herons in Indiana
- Indiana Dunes National Park — National Park
- Lewis & Clark National Historic Trail — National Historic Trail
- Lincoln Boyhood National Memorial — National Memorial
- George Rogers Clark National Historical Park — National Historical Park
- Indiana Dunes SP
- Gibson Generating Station
Frequently asked questions
What is the best month to see great blue herons in Indiana?+
May is the single best month, and the broader peak window runs through May, June and April, based on 2,859 verified iNaturalist observations.
When are great blue herons hardest to see in Indiana?+
December is the quietest month for great blue herons in Indiana, with only 75 verified records.
Are great blue herons active year-round in Indiana?+
Great blue herons are recorded in 12 of 12 months in Indiana, so they can be seen year-round, with a clear peak in May.