Rio Grande, Roma, Texas · River
The current water temperature at Rio Grande is 29.6 °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.
This measurement series includes 252 data points since July 23, 2026.
Lowest recorded value: 28.5 °C on July 26, 2026 · highest value: 31.9 °C on September 3, 2026.
In September, temperatures have ranged between 29.1 °C and 31.9 °C.
The current value is 0.6 °C below the September average of this series.
Can you swim at Rio Grande right now?
The current water temperature is 29.6 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Rio Grande?
Currently 29.6 °C (updated continuously).
How warm is at Rio Grande in September?
In September, the water temperature recently averaged 30.2 °C.
When is the water warmest at Rio Grande?
Across the measurement record, September is on average the warmest month (30.2 °C).