Medina River water temperature
Medina River, San Antonio, Texas · River
The current water temperature at Medina River is 29.0 °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 284 data points since July 23, 2026.
Lowest recorded value: 26.9 °C on August 29, 2026 · highest value: 32.3 °C on August 22, 2026.
In September, temperatures have ranged between 29.0 °C and 31.8 °C.
The current value is 1.3 °C below the September average of this series.
Nearby waters
More measuring points: Medina River
Frequently asked questions
Can you swim at Medina River right now?
The current water temperature is 29.0 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Medina River?
Currently 29.0 °C (updated continuously).
How warm is at Medina River in September?
In September, the water temperature recently averaged 30.3 °C.
When is the water warmest at Medina River?
Across the measurement record, September is on average the warmest month (30.3 °C).
