Updated
Triadelphia Reservoir
Reservoir
This 800-acre reservoir on the Patuxent River features fishing & non-motorized boating.
Current water conditions
Live data from NOAA buoy WASD2 (23.3 mi away), as of Aug 20, 10:30 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 Triadelphia Reservoir
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Frequently asked questions
- Where is Triadelphia Reservoir?
- Triadelphia Reservoir is a reservoir in Maryland.
- What is the water temperature at Triadelphia Reservoir?
- As of August 20, 2026, the water temperature at Triadelphia Reservoir in Maryland is 84°F (29°C), measured by NOAA buoy WASD2, 23.3 miles away.
- Can you swim at Triadelphia Reservoir?
- There is no fixed answer for Triadelphia Reservoir: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Triadelphia Reservoir in Maryland. Check current water conditions before you go, and follow posted signs and local guidance.
- How is Triadelphia Reservoir rated?
- Triadelphia Reservoir in Maryland has an average visitor rating of 4 out of 5, based on 30 reviews.
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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