Best Time to See Sea Turtles in Maine
May, July and December is the best time to see sea turtles in Maine. Based on 3 verified iNaturalist observations, here is exactly when 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 June 28, 2026.
3 verified observations of sea turtles in Maine, recorded across 3 months of the year on iNaturalist.
When sea turtles are recorded in Maine
Peak month
May
1 records (33.3% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 0 | 0% |
| February | 0 | 0% |
| March | 0 | 0% |
| April | 0 | 0% |
| Maypeak | 1 | 33.3% |
| June | 0 | 0% |
| Julypeak | 1 | 33.3% |
| August | 0 | 0% |
| September | 0 | 0% |
| October | 0 | 0% |
| November | 0 | 0% |
| Decemberpeak | 1 | 33.3% |
Sea Turtles you are most likely to see
| Species | Verified observations |
|---|---|
| Green Sea Turtle | 2 |
Weather to expect, source Open-Meteo
Typical weather in Maine
Recent typical conditions by month, so you can plan a trip around both when sea turtles are active and what the weather is doing. The best months to look for sea turtles sit around 20 to 80 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" |
| Julbest time | 80°F | 62°F | 4.9" |
| Aug | 77°F | 60°F | 4.7" |
| Sep | 69°F | 53°F | 4.4" |
| Oct | 58°F | 43°F | 5.3" |
| Nov | 43°F | 29°F | 3.8" |
| Decbest time | 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 sea turtles in Maine peak in May, when 1 of the year's 3 verified observations are logged — about 33.3% of the annual total. Activity stays high through May, July and December.
The quietest stretch is January, February and March, when 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 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 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
Frequently asked questions
What is the best month to see sea turtles in Maine?+
May is the single best month, and the broader peak window runs through May, July and December, based on 3 verified iNaturalist observations.
When are sea turtles hardest to see in Maine?+
January is the quietest month for sea turtles in Maine, with no verified records on iNaturalist.
Are sea turtles active year-round in Maine?+
Sea turtles are recorded in 3 of 12 months in Maine, concentrated around May and July.
More places to see sea turtles
More wildlife in Maine