Medina River at San Antonio, Texas · River
The current water temperature at Medina River at San Antonio is 30.4 °C (as of September 1, 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 292 data points since July 9, 2026.
Lowest recorded value: 24.2 °C on July 16, 2026 · highest value: 32.3 °C on August 22, 2026.
Can you swim at Medina River at San Antonio right now?
The current water temperature is 30.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Medina River at San Antonio?
Currently 30.4 °C (updated continuously).