Best Time to See Green Sea Turtles in Maine
May and December is the best time to see green sea turtles in Maine. Based on 2 verified iNaturalist observations, here is exactly when green sea turtles 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 10, 2026.
2 verified observations of green sea turtles in Maine, recorded across 2 months of the year on iNaturalist.
When green sea turtles are recorded in Maine
Peak month
May
1 records (50% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 0 | 0% |
| February | 0 | 0% |
| March | 0 | 0% |
| April | 0 | 0% |
| Maypeak | 1 | 50% |
| June | 0 | 0% |
| July | 0 | 0% |
| August | 0 | 0% |
| September | 0 | 0% |
| October | 0 | 0% |
| November | 0 | 0% |
| Decemberpeak | 1 | 50% |
Green Sea Turtles you are most likely to see
| Species | Verified observations |
|---|---|
| Green Sea Turtle | 2 |
Sightings of green sea turtles in Maine peak in May, when 1 of the year's 2 verified observations are logged — about 50% of the annual total. Activity stays high through May and December.
The quietest stretch is January, February and March, when green sea turtles 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 green sea turtles you are most likely to encounter in Maine are Green Sea Turtle — 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 green sea turtles 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
Plan your green sea turtle trip in Maine
Start with live tours near Acadia National Park, then compare a nearby stay and a broader wildlife backup before you lock in the trip.
GetYourGuide
Live tours nearbySee live tours near Acadia National Park
Use the live GetYourGuide widget to compare local departures and activity styles close to the main green sea turtle viewing area.
Booking.com
Stay nearbyStay near Acadia National Park
Compare hotels, cabins and lodges close to the best green sea turtle viewing area in Maine.
Viator
Broader backupBook a green sea turtle tour in Maine
Compare guided wildlife tours, boat trips and nature experiences if you want a second travel network beyond the live widget.
Frequently asked questions
What is the best month to see green sea turtles in Maine?+
May is the single best month, and the broader peak window runs through May and December, based on 2 verified iNaturalist observations.
When are green sea turtles hardest to see in Maine?+
January is the quietest month for green sea turtles in Maine, with no verified records on iNaturalist.
Are green sea turtles active year-round in Maine?+
Green sea turtles are recorded in 2 of 12 months in Maine, concentrated around May and December.
More wildlife in Maine