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Otis Reservoir
Lake · Otis, Massachusetts
This 1,085-acre reservoir offers recreational activities, including water-skiing & fishing.
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Current water conditions
Live data from NOAA buoy CXHN6 (40.8 mi away), as of Aug 20, 8:54 PM UTC. Conditions are for general information only and can change quickly — always judge the water in person and follow posted advisories before swimming.
Weather at Otis Reservoir









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Frequently asked questions
- Where is Otis Reservoir?
- Otis Reservoir is a lake in Otis, Massachusetts.
- What is the water temperature at Otis Reservoir?
- As of August 20, 2026, the water temperature at Otis Reservoir in Otis, Massachusetts is 79°F (26°C), measured by NOAA buoy CXHN6, 40.8 miles away.
- Can you swim at Otis Reservoir?
- There is no fixed answer for Otis Reservoir: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Otis Reservoir in Otis, Massachusetts. Check current water conditions before you go, and follow posted signs and local guidance.
- How is Otis Reservoir rated?
- Otis Reservoir in Otis, Massachusetts has an average visitor rating of 4.7 out of 5, based on 34 reviews.
Visitor Reviews
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Been here? A quick note helps the next visitor plan their day. Handy things to mention:
Best Times to Visit
- ›Check for boat launch facilities and fees
- ›Obtain required fishing licenses before arrival
- ›Be aware of lake-specific regulations and restrictions
- ›Monitor water quality reports before swimming
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