Lake Massapoag water level & water temperature
Lake Massapoag water level isn't currently wired to a public live source — the dashboard runs weather-only for this lake. Typical level elevation is 250 ft; surface area at typical level is 353 acres.
No reliable water-level source yet
We haven't found a public, reliable elevation feed for Lake Massapoag, so we won't show a level we can't stand behind. Weather, wind models, and the sailing score all still work.
Help us add it
Know a source for Lake Massapoag? Email us any of these and we'll wire it up:
- 1Source / operating agency
- 2Gauge ID or data URL
- 3Anything else worth knowing
Water Temperature
Lake Massapoag water temperature by month
Lake Massapoag surface water temperature averages from about 36°F in January to 79°F in July over the year, based on a 40-year USGS model (1980–2020). Cold-water caution applies in roughly half the year, when the typical temperature is below 60°F.
Typical surface temperatures (°F), modeled historical averages (USGS 185k-lake dataset, 1980–2020). Colors flag cold-water risk: blue/amber/red = cool, caution, danger. Live and recent readings appear above where a sensor is available.