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Mongaup River water temperature

Mongaup River, Mongaup, New York · River

The current water temperature at Mongaup River is 20.4 °C (as of September 21, 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.

20.4 °C
Measured: September 21, 2026 · continuously updated
💧 Water 20.4° · ☀️ Air 13.1° · high today 19.3°
Temperature trend of recent weeks

Measurement series & statistics

This measurement series includes 283 data points since July 23, 2026.

Lowest recorded value: 19.7 °C on July 24, 2026 · highest value: 22.5 °C on August 14, 2026.

In September, temperatures have ranged between 20.4 °C and 22.4 °C.

The current value is 1.0 °C below the September average of this series.

Nearby waters

More measuring points: Mongaup River

Frequently asked questions

Can you swim at Mongaup River right now?
The current water temperature is 20.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Mongaup River?
Currently 20.4 °C (updated continuously).

How warm is at Mongaup River in September?
In September, the water temperature recently averaged 21.4 °C.

When is the water warmest at Mongaup River?
Across the measurement record, August is on average the warmest month (21.5 °C).

Open in the BrrChecker app

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