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Klamath River near Klamath, California water temperature

Klamath River near Klamath, California · River

The current water temperature at Klamath River near Klamath is 18.7 °C (as of September 7, 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.

18.7 °C
Measured: September 7, 2026 · continuously updated
💧 Water 18.7° · ☀️ Air 21.0°
Temperature trend of recent weeks

Measurement series & statistics

This measurement series includes 129 data points since July 10, 2026.

Lowest recorded value: 17.3 °C on September 5, 2026 · highest value: 24.1 °C on August 9, 2026.

In September, temperatures have ranged between 17.3 °C and 22.1 °C.

The current value is 0.5 °C below the September average of this series.

Nearby waters

Frequently asked questions

Can you swim at Klamath River near Klamath right now?
The current water temperature is 18.7 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Klamath River near Klamath?
Currently 18.7 °C (updated continuously).

How warm is at Klamath River near Klamath in September?
In September, the water temperature recently averaged 19.2 °C.

When is the water warmest at Klamath River near Klamath?
Across the measurement record, July is on average the warmest month (22.9 °C).

Open in the BrrChecker app

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