Tualatin River at HWY 219 near Hillsboro, Oregon water temperature
Tualatin River at HWY 219 near Hillsboro, Oregon · River
The current water temperature at Tualatin River at HWY 219 near Hillsboro is 15.9 °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 143 data points since July 22, 2026.
Lowest recorded value: 14.4 °C on September 4, 2026 · highest value: 17.3 °C on July 22, 2026.
In September, temperatures have ranged between 14.4 °C and 16.8 °C.
The current value is 0.4 °C above the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Tualatin River at HWY 219 near Hillsboro right now?
The current water temperature is 15.9 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Tualatin River at HWY 219 near Hillsboro?
Currently 15.9 °C (updated continuously).
How warm is at Tualatin River at HWY 219 near Hillsboro in September?
In September, the water temperature recently averaged 15.5 °C.
When is the water warmest at Tualatin River at HWY 219 near Hillsboro?
Across the measurement record, July is on average the warmest month (16.6 °C).
