Best Time to See Loggerhead Sea Turtles in Massachusetts
August, March and September is the best time to see loggerhead sea turtles in Massachusetts. Based on 24 verified iNaturalist observations, here is exactly when loggerhead sea turtles are most active across the year in Massachusetts.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 10, 2026.
Loggerhead Sea Turtle · Fives CC BY
24 verified observations of loggerhead sea turtles in Massachusetts, recorded across 8 months of the year on iNaturalist.
When loggerhead sea turtles are recorded in Massachusetts
Peak month
August
9 records (37.5% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 1 | 4.2% |
| February | 0 | 0% |
| Marchpeak | 4 | 16.7% |
| April | 0 | 0% |
| May | 0 | 0% |
| June | 1 | 4.2% |
| July | 2 | 8.3% |
| Augustpeak | 9 | 37.5% |
| Septemberpeak | 4 | 16.7% |
| October | 1 | 4.2% |
| November | 0 | 0% |
| December | 2 | 8.3% |
Loggerhead Sea Turtles you are most likely to see
| Species | Verified observations |
|---|---|
| Loggerhead Sea Turtle | 24 |
Weather to expect, source Open-Meteo
Typical weather in Massachusetts
Recent typical conditions by month, so you can plan a trip around both when loggerhead sea turtles are active and what the weather is doing. The best months to look for loggerhead sea turtles sit around 28 to 82 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 37°F | 22°F | 3.8" |
| Feb | 39°F | 22°F | 3.4" |
| Marbest time | 48°F | 28°F | 3.6" |
| Apr | 57°F | 38°F | 4.6" |
| May | 68°F | 47°F | 3.4" |
| Jun | 78°F | 58°F | 3.6" |
| Jul | 83°F | 65°F | 5.4" |
| Augbest time | 82°F | 64°F | 3.5" |
| Sepbest time | 73°F | 56°F | 5.3" |
| Oct | 62°F | 47°F | 5.3" |
| Nov | 50°F | 34°F | 3.1" |
| Dec | 42°F | 27°F | 5.9" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Massachusetts. Weather varies year to year, so treat these as a guide.
More on loggerhead sea turtles in Massachusetts:
Sightings of loggerhead sea turtles in Massachusetts peak in August, when 9 of the year's 24 verified observations are logged — about 37.5% of the annual total. Activity stays high through August, March and September.
The quietest stretch is February, April and May, when loggerhead sea turtles 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 loggerhead sea turtles you are most likely to encounter in Massachusetts are Loggerhead 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 loggerhead sea turtles in Massachusetts
- Appalachian National Scenic Trail — National Scenic Trail
- Blackstone River Valley National Historical Park — National Historical Park
- Boston Harbor Islands National Recreation Area — National Recreation Area
- Cape Cod National Seashore — National Seashore
- Adams National Historical Park — National Historical Park
- Boston African American National Historic Site — National Historic Site
Frequently asked questions
What is the best month to see loggerhead sea turtles in Massachusetts?+
August is the single best month, and the broader peak window runs through August, March and September, based on 24 verified iNaturalist observations.
When are loggerhead sea turtles hardest to see in Massachusetts?+
February is the quietest month for loggerhead sea turtles in Massachusetts, with no verified records on iNaturalist.
Are loggerhead sea turtles active year-round in Massachusetts?+
Loggerhead sea turtles are recorded in 8 of 12 months in Massachusetts, concentrated around August and March.
More places to see loggerhead sea turtles
More wildlife in Massachusetts