Barataria Pass at Grand Isle, Louisiana water temperature
Barataria Pass at Grand Isle, Louisiana · River
The current water temperature at Barataria Pass at Grand Isle is 29.7 °C (as of September 20, 2026, source: USGS).
A river can change temperature within hours — snowmelt, rain or power-plant operations show up immediately. That is why the measured value counts here, not an estimate.
Measurement series & statistics
This measurement series includes 174 data points since July 22, 2026.
Lowest recorded value: 28.0 °C on September 18, 2026 · highest value: 33.3 °C on September 5, 2026.
In September, temperatures have ranged between 28.0 °C and 33.3 °C.
The current value is 0.9 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Barataria Pass at Grand Isle right now?
The current water temperature is 29.7 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Barataria Pass at Grand Isle?
Currently 29.7 °C (updated continuously).
How warm is at Barataria Pass at Grand Isle in September?
In September, the water temperature recently averaged 30.6 °C.
When is the water warmest at Barataria Pass at Grand Isle?
Across the measurement record, August is on average the warmest month (30.9 °C).
