Alsea River near Tidewater, Oregon water temperature
Alsea River near Tidewater, Oregon · River
The current water temperature at Alsea River near Tidewater is 16.6 °C (as of September 17, 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 155 data points since July 20, 2026.
Lowest recorded value: 15.0 °C on September 4, 2026 · highest value: 22.7 °C on August 8, 2026.
In September, temperatures have ranged between 15.0 °C and 21.1 °C.
The current value is 0.7 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Alsea River near Tidewater right now?
The current water temperature is 16.6 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Alsea River near Tidewater?
Currently 16.6 °C (updated continuously).
How warm is at Alsea River near Tidewater in September?
In September, the water temperature recently averaged 17.3 °C.
When is the water warmest at Alsea River near Tidewater?
Across the measurement record, July is on average the warmest month (21.7 °C).
