Caillou Lake (Sister Lake) Sw of Dulac, Louisiana water temperature
Caillou Lake (Sister Lake) Sw of Dulac, Louisiana · Lake
The current water temperature at Caillou Lake (Sister Lake) Sw of Dulac is 30.2 °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 160 data points since July 24, 2026.
Lowest recorded value: 28.2 °C on September 1, 2026 · highest value: 32.7 °C on August 27, 2026.
In September, temperatures have ranged between 28.2 °C and 32.6 °C.
The current value is 0.5 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Caillou Lake (Sister Lake) Sw of Dulac right now?
The current water temperature is 30.2 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Caillou Lake (Sister Lake) Sw of Dulac?
Currently 30.2 °C (updated continuously).
How warm is at Caillou Lake (Sister Lake) Sw of Dulac in September?
In September, the water temperature recently averaged 30.7 °C.
When is the water warmest at Caillou Lake (Sister Lake) Sw of Dulac?
Across the measurement record, July is on average the warmest month (31.4 °C).
