Updated
Upper Lake
Lake · Yaphank, New York
Things to Do Near Upper Lake
Top-rated tours and experiences around Yaphank, powered by Viator — free cancellation on most.
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Current water conditions
Live data from NOAA buoy 44069 (12.7 mi away), as of Aug 21, 5:00 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 Upper Lake
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Frequently asked questions
- Where is Upper Lake?
- Upper Lake is a lake in Yaphank, New York.
- What is the water temperature at Upper Lake?
- As of August 21, 2026, the water temperature at Upper Lake in Yaphank, New York is 78°F (26°C), measured by NOAA buoy 44069, 12.7 miles away.
- Can you swim at Upper Lake?
- There is no fixed answer for Upper Lake: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Upper Lake in Yaphank, New York. Check current water conditions before you go, and follow posted signs and local guidance.
- How is Upper Lake rated?
- Upper Lake in Yaphank, New York has an average visitor rating of 4.9 out of 5, based on 8 reviews.
- What amenities does Upper Lake have?
- Visitor-listed amenities at Upper Lake 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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