Deep Creek Lake water temperature
Deep Creek Lake, Thayerville, Maryland · Lake
The current water temperature at Deep Creek Lake is 22.3 °C (as of September 21, 2026, source: USGS).
Lakes stratify in summer: bathing-warm on top, markedly colder a few metres down. Measurements are taken at the surface — right where you swim.
Measurement series & statistics
This measurement series includes 155 data points since July 23, 2026.
Lowest recorded value: 22.3 °C on September 21, 2026 · highest value: 25.8 °C on September 3, 2026.
In September, temperatures have ranged between 22.3 °C and 25.8 °C.
The current value is 1.8 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Deep Creek Lake right now?
The current water temperature is 22.3 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Deep Creek Lake?
Currently 22.3 °C (updated continuously).
How warm is at Deep Creek Lake in September?
In September, the water temperature recently averaged 24.1 °C.
When is the water warmest at Deep Creek Lake?
Across the measurement record, September is on average the warmest month (24.1 °C).
