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Alameda C near Niles, California water temperature

Alameda C near Niles, California · River

The current water temperature at Alameda C near Niles is 19.4 °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.

19.4 °C
Measured: September 20, 2026 · continuously updated
💧 Water 19.4° · ☀️ Air 14.5° · high today 22.3°
Temperature trend of recent weeks
Alameda C near Niles, California
Photo: Mercurywoodrose · CC BY-SA 3.0 · Wikimedia Commons

Measurement series & statistics

This measurement series includes 120 data points since July 22, 2026.

Lowest recorded value: 18.1 °C on September 18, 2026 · highest value: 26.1 °C on August 9, 2026.

In September, temperatures have ranged between 18.1 °C and 23.8 °C.

The current value is 1.2 °C below the September average of this series.

Nearby waters

Frequently asked questions

Can you swim at Alameda C near Niles right now?
The current water temperature is 19.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Alameda C near Niles?
Currently 19.4 °C (updated continuously).

How warm is at Alameda C near Niles in September?
In September, the water temperature recently averaged 20.6 °C.

When is the water warmest at Alameda C near Niles?
Across the measurement record, July is on average the warmest month (23.0 °C).

Open in the BrrChecker app

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