Best Time to See Monarch Butterflies in Michigan
July, August and September is the best time to see monarch butterflies in Michigan. Based on 9,875 verified iNaturalist observations, here is exactly when monarch butterflies are most active across the year in Michigan.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.
9,875 verified observations of monarch butterflies in Michigan, recorded across 11 months of the year on iNaturalist.
When monarch butterflies are recorded in Michigan
Peak month
July
3,253 records (32.9% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 0 | 0% |
| February | 2 | 0% |
| March | 2 | 0% |
| April | 6 | 0.1% |
| May | 179 | 1.8% |
| June | 1,226 | 12.4% |
| Julypeak | 3,253 | 32.9% |
| Augustpeak | 3,245 | 32.9% |
| Septemberpeak | 1,736 | 17.6% |
| October | 209 | 2.1% |
| November | 12 | 0.1% |
| December | 5 | 0.1% |
Monarch Butterflies you are most likely to see
| Species | Verified observations |
|---|---|
| Monarch | 9,875 |
Weather to expect, source Open-Meteo
Typical weather in Michigan
Recent typical conditions by month, so you can plan a trip around both when monarch butterflies are active and what the weather is doing. The best months to look for monarch butterflies sit around 53 to 80 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 27°F | 16°F | 2.3" |
| Feb | 28°F | 13°F | 2.4" |
| Mar | 40°F | 23°F | 3" |
| Apr | 51°F | 33°F | 2.8" |
| May | 65°F | 45°F | 3.7" |
| Jun | 76°F | 55°F | 2.8" |
| Julbest time | 80°F | 61°F | 3.6" |
| Augbest time | 77°F | 59°F | 3.3" |
| Sepbest time | 69°F | 53°F | 3.4" |
| Oct | 55°F | 42°F | 4.7" |
| Nov | 42°F | 30°F | 2.5" |
| Dec | 34°F | 23°F | 2.7" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Michigan. Weather varies year to year, so treat these as a guide.
More on monarch butterflies in Michigan:
Sightings of monarch butterflies in Michigan peak in July, when 3,253 of the year's 9,875 verified observations are logged — about 32.9% of the annual total. Activity stays high through July, August and September.
The quietest stretch is January, when monarch butterflies are hardest to find — no verified records exist for January. If a reliable sighting matters, plan around the peak window rather than the off-season.
The monarch butterflies you are most likely to encounter in Michigan are Monarch — 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 monarch butterflies in Michigan
- Isle Royale National Park — National Park
- North Country National Scenic Trail — National Scenic Trail
- Pictured Rocks National Lakeshore — National Lakeshore
- River Raisin National Battlefield Park — National Battlefield Park
- Sleeping Bear Dunes National Lakeshore — National Lakeshore
- Keweenaw National Historical Park — National Historical Park
Frequently asked questions
What is the best month to see monarch butterflies in Michigan?+
July is the single best month, and the broader peak window runs through July, August and September, based on 9,875 verified iNaturalist observations.
When are monarch butterflies hardest to see in Michigan?+
January is the quietest month for monarch butterflies in Michigan, with no verified records on iNaturalist.
Are monarch butterflies active year-round in Michigan?+
Monarch butterflies are recorded in 11 of 12 months in Michigan, so they can be seen year-round, with a clear peak in July.
More places to see monarch butterflies
More wildlife in Michigan