Northeast Branch Anacostia River at Riverdale, Maryland water temperature
Northeast Branch Anacostia River at Riverdale, Maryland · River
The current water temperature at Northeast Branch Anacostia River at Riverdale is 23.0 °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 169 data points since July 22, 2026.
Lowest recorded value: 21.2 °C on September 8, 2026 · highest value: 28.7 °C on September 2, 2026.
In September, temperatures have ranged between 21.2 °C and 28.7 °C.
The current value is 2.1 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Northeast Branch Anacostia River at Riverdale right now?
The current water temperature is 23.0 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Northeast Branch Anacostia River at Riverdale?
Currently 23.0 °C (updated continuously).
How warm is at Northeast Branch Anacostia River at Riverdale in September?
In September, the water temperature recently averaged 25.1 °C.
When is the water warmest at Northeast Branch Anacostia River at Riverdale?
Across the measurement record, August is on average the warmest month (25.6 °C).
