Best Time to See Yellow Rumped Warblers in Maine
October, May and September is the best time to see yellow rumped warblers in Maine. Based on 1,205 verified iNaturalist observations, here is exactly when yellow rumped warblers are most active across the year in Maine.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 20, 2026.
Myrtle Warbler · Public domain CC0
Myrtle Warbler · Fyn Kynd CC BY-SA
Yellow-rumped Warbler · leahmv CC BY
1,205 verified observations of yellow rumped warblers in Maine, recorded across 10 months of the year on iNaturalist.
When yellow rumped warblers are recorded in Maine
Peak month
October
395 records (32.8% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 6 | 0.5% |
| February | 0 | 0% |
| March | 0 | 0% |
| April | 124 | 10.3% |
| Maypeak | 271 | 22.5% |
| June | 68 | 5.6% |
| July | 74 | 6.1% |
| August | 71 | 5.9% |
| Septemberpeak | 183 | 15.2% |
| Octoberpeak | 395 | 32.8% |
| November | 11 | 0.9% |
| December | 2 | 0.2% |
Yellow Rumped Warblers you are most likely to see
| Species | Verified observations |
|---|---|
| Yellow-rumped Warbler | 1,205 |
Weather to expect, source Open-Meteo
Typical weather in Maine
Recent typical conditions by month, so you can plan a trip around both when yellow rumped warblers are active and what the weather is doing. The best months to look for yellow rumped warblers sit around 43 to 69 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 28°F | 11°F | 4" |
| Feb | 28°F | 11°F | 3.1" |
| Mar | 39°F | 20°F | 2.7" |
| Apr | 51°F | 32°F | 4.8" |
| Maybest time | 64°F | 43°F | 3.2" |
| Jun | 74°F | 54°F | 3.7" |
| Jul | 80°F | 62°F | 4.9" |
| Aug | 77°F | 60°F | 4.7" |
| Sepbest time | 69°F | 53°F | 4.4" |
| Octbest time | 58°F | 43°F | 5.3" |
| Nov | 43°F | 29°F | 3.8" |
| Dec | 34°F | 20°F | 5" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Maine. Weather varies year to year, so treat these as a guide.
Sightings of yellow rumped warblers in Maine peak in October, when 395 of the year's 1,205 verified observations are logged — about 32.8% of the annual total. Activity stays high through October, May and September.
The quietest stretch is February and March, when yellow rumped warblers are hardest to find — no verified records exist for February. If a reliable sighting matters, plan around the peak window rather than the off-season.
The yellow rumped warblers you are most likely to encounter in Maine are Yellow-rumped Warbler — 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 yellow rumped warblers in Maine
- Acadia National Park — National Park
- Appalachian National Scenic Trail — National Scenic Trail
- Katahdin Woods and Waters National Monument — National Monument
- Saint Croix Island International Historic Site — International Historic Site
- Frances Perkins National Monument — National Monument
- Maine Acadian Culture
Frequently asked questions
What is the best month to see yellow rumped warblers in Maine?+
October is the single best month, and the broader peak window runs through October, May and September, based on 1,205 verified iNaturalist observations.
When are yellow rumped warblers hardest to see in Maine?+
February is the quietest month for yellow rumped warblers in Maine, with no verified records on iNaturalist.
Are yellow rumped warblers active year-round in Maine?+
Yellow rumped warblers are recorded in 10 of 12 months in Maine, concentrated around October and May.
More wildlife in Maine