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 1, 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 1, 2026 · continuously updated

💧 Water 19.4° · ☀️ Air 15.3° · high today 21.4°

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 59 data points since July 8, 2026.

Lowest recorded value: 18.6 °C on August 30, 2026 · highest value: 26.1 °C on August 9, 2026.

In September, temperatures have ranged between 19.4 °C and 21.0 °C.

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

Nearby waters

Alameda C A Sunol Water Temple A Sunol, California · 6.7 km away19.7 °C Arroyo De La Laguna A Verona, California · 8.1 km away20.3 °C Alameda C below Welch C near Sunol, California · 10.6 km away16.5 °C Alameda C below Calaveras C near Sunol, California · 15.2 km away13.6 °C Calaveras C near Sunol, California · 15.7 km away13.2 °C

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 20.4 °C.

When is the water warmest at Alameda C near Niles?
Across the measurement record, August is on average the warmest month (22.4 °C).

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