Delaware River at Montague, New Jersey water temperature
Delaware River at Montague, New Jersey · River
The current water temperature at Delaware River at Montague is 20.2 °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 156 data points since July 22, 2026.
Lowest recorded value: 19.5 °C on July 30, 2026 · highest value: 24.9 °C on July 27, 2026.
In September, temperatures have ranged between 19.7 °C and 22.5 °C.
The current value is 0.9 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Delaware River at Montague right now?
The current water temperature is 20.2 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Delaware River at Montague?
Currently 20.2 °C (updated continuously).
How warm is at Delaware River at Montague in September?
In September, the water temperature recently averaged 21.1 °C.
When is the water warmest at Delaware River at Montague?
Across the measurement record, July is on average the warmest month (22.9 °C).
