Santa Ynez River A HWY 154 near Santa Ynez, California water temperature
Santa Ynez River A HWY 154 near Santa Ynez, California · River
The current water temperature at Santa Ynez River A HWY 154 near Santa Ynez is 17.3 °C (as of September 20, 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 135 data points since July 22, 2026.
Lowest recorded value: 15.8 °C on September 2, 2026 · highest value: 20.9 °C on August 9, 2026.
In September, temperatures have ranged between 15.8 °C and 19.2 °C.
The current value is 0.3 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Santa Ynez River A HWY 154 near Santa Ynez right now?
The current water temperature is 17.3 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Santa Ynez River A HWY 154 near Santa Ynez?
Currently 17.3 °C (updated continuously).
How warm is at Santa Ynez River A HWY 154 near Santa Ynez in September?
In September, the water temperature recently averaged 17.6 °C.
When is the water warmest at Santa Ynez River A HWY 154 near Santa Ynez?
Across the measurement record, August is on average the warmest month (18.7 °C).
