Updated
Lake Nummy
Lake · Dennis, New Jersey
Things to Do Near Lake Nummy
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Current water conditions
Live data from NOAA buoy CMAN4 (20 mi away), as of Aug 21, 9:18 AM 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 Lake Nummy
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Frequently asked questions
- Where is Lake Nummy?
- Lake Nummy is a lake in Dennis, New Jersey.
- What is the water temperature at Lake Nummy?
- As of August 21, 2026, the water temperature at Lake Nummy in Dennis, New Jersey is 77°F (25°C), measured by NOAA buoy CMAN4, 20 miles away.
- Can you swim at Lake Nummy?
- There is no fixed answer for Lake Nummy: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Lake Nummy in Dennis, New Jersey. Check current water conditions before you go, and follow posted signs and local guidance.
- How is Lake Nummy rated?
- Lake Nummy in Dennis, New Jersey has an average visitor rating of 4.8 out of 5, based on 22 reviews.
- What amenities does Lake Nummy have?
- Visitor-listed amenities at Lake Nummy include camping-nearby.
Visitor Reviews
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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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