Trinity River water temperature
Trinity River, Rosser, Texas · River
The current water temperature at Trinity River is 29.8 °C (as of September 21, 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 247 data points since July 23, 2026.
Lowest recorded value: 29.8 °C on September 21, 2026 · highest value: 40.0 °C on August 14, 2026.
In September, temperatures have ranged between 29.8 °C and 32.5 °C.
The current value is 1.5 °C below the September average of this series.
Nearby waters
More measuring points: Trinity River
Frequently asked questions
Can you swim at Trinity River right now?
The current water temperature is 29.8 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Trinity River?
Currently 29.8 °C (updated continuously).
How warm is at Trinity River in September?
In September, the water temperature recently averaged 31.3 °C.
When is the water warmest at Trinity River?
Across the measurement record, August is on average the warmest month (33.7 °C).
