Best Time to See Monarch Butterflies in New Mexico
August, September and October is the best time to see monarch butterflies in New Mexico. Based on 856 verified iNaturalist observations, here is exactly when monarch butterflies are most active across the year in New Mexico.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.
856 verified observations of monarch butterflies in New Mexico, recorded across 10 months of the year on iNaturalist.
When monarch butterflies are recorded in New Mexico
Peak month
August
252 records (29.4% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 0 | 0% |
| February | 0 | 0% |
| March | 11 | 1.3% |
| April | 32 | 3.7% |
| May | 18 | 2.1% |
| June | 43 | 5% |
| July | 123 | 14.4% |
| Augustpeak | 252 | 29.4% |
| Septemberpeak | 199 | 23.2% |
| Octoberpeak | 152 | 17.8% |
| November | 23 | 2.7% |
| December | 3 | 0.4% |
Monarch Butterflies you are most likely to see
| Species | Verified observations |
|---|---|
| Monarch | 856 |
Weather to expect, source Open-Meteo
Typical weather in New Mexico
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 44 to 84 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 44°F | 26°F | 0.6" |
| Feb | 47°F | 26°F | 0.8" |
| Mar | 57°F | 34°F | 1" |
| Apr | 68°F | 42°F | 0.4" |
| May | 76°F | 51°F | 0.5" |
| Jun | 84°F | 60°F | 1.1" |
| Jul | 87°F | 65°F | 1" |
| Augbest time | 84°F | 63°F | 1.2" |
| Sepbest time | 79°F | 57°F | 0.9" |
| Octbest time | 67°F | 44°F | 0.9" |
| Nov | 56°F | 35°F | 0.7" |
| Dec | 47°F | 29°F | 0.6" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for New Mexico. Weather varies year to year, so treat these as a guide.
More on monarch butterflies in New Mexico:
Sightings of monarch butterflies in New Mexico peak in August, when 252 of the year's 856 verified observations are logged — about 29.4% of the annual total. Activity stays high through August, September and October.
The quietest stretch is January and February, 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 New Mexico 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 New Mexico
- Bandelier National Monument — National Monument
- Capulin Volcano National Monument — National Monument
- Carlsbad Caverns National Park — National Park
- El Malpais National Monument — National Monument
- El Morro National Monument — National Monument
- Gila Cliff Dwellings National Monument — National Monument
Frequently asked questions
What is the best month to see monarch butterflies in New Mexico?+
August is the single best month, and the broader peak window runs through August, September and October, based on 856 verified iNaturalist observations.
When are monarch butterflies hardest to see in New Mexico?+
January is the quietest month for monarch butterflies in New Mexico, with no verified records on iNaturalist.
Are monarch butterflies active year-round in New Mexico?+
Monarch butterflies are recorded in 10 of 12 months in New Mexico, concentrated around August and September.
More places to see monarch butterflies
More wildlife in New Mexico