Open Water Data

(ETL1) Etra Lake

East Windsor, New Jersey, United States

Data Sources
  • Water Quality Status
    Passed tests Tue, Jul 15, 2025 at 4:27pm
  • Air Temperature
    18.2°C / 64.8°F (air) Sun, Dec 4, 2022 at 11:00pm
  • Wind
    3.6 - 13.7km/h N 10° Sun, Dec 4, 2022 at 11:00pm
  • Clear
    Clear Sun, Dec 4, 2022 at 11:00pm
  • Precipitation
    0mm Sun, Dec 4, 2022 at 11:00pm
  • Air Visibility
    16km Sun, Dec 4, 2022 at 11:00pm
  • Humidity
    93% Sun, Dec 4, 2022 at 11:00pm

This site is part of the Rocky Brook subwatershed and has an average water temperature of 21.5 degrees Celsius, scoring excellent, typically with clear water and no algae. The movement of the water tends to be still/slow to ripples with moderate flow. Duckweed and other aquatic vegetation is abundant.

The description above was copied from or heavily based on Swim Guide, with permission.

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