Long Branch near Annandale, Virginia water temperature
Long Branch near Annandale, Virginia · River
The current water temperature at Long Branch near Annandale is 21.8 °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 99 data points since August 26, 2026.
Lowest recorded value: 20.1 °C on September 8, 2026 · highest value: 26.9 °C on September 1, 2026.
In September, temperatures have ranged between 20.1 °C and 26.9 °C.
The current value is 1.6 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Long Branch near Annandale right now?
The current water temperature is 21.8 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Long Branch near Annandale?
Currently 21.8 °C (updated continuously).
How warm is at Long Branch near Annandale in September?
In September, the water temperature recently averaged 23.4 °C.
