BrrChecker

W Fork San Jacinto River water temperature

W Fork San Jacinto River, Conroe, Texas · River

The current water temperature at W Fork San Jacinto River is 28.6 °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.

28.6 °C
Measured: September 21, 2026 · continuously updated
💧 Water 28.6° · ☀️ Air 25.4° · high today 35.2°
Temperature trend of recent weeks

Measurement series & statistics

This measurement series includes 271 data points since July 23, 2026.

Lowest recorded value: 26.5 °C on August 11, 2026 · highest value: 35.6 °C on August 22, 2026.

In September, temperatures have ranged between 27.2 °C and 33.8 °C.

The current value is 0.8 °C below the September average of this series.

Nearby waters

More measuring points: W Fork San Jacinto River

Frequently asked questions

Can you swim at W Fork San Jacinto River right now?
The current water temperature is 28.6 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at W Fork San Jacinto River?
Currently 28.6 °C (updated continuously).

How warm is at W Fork San Jacinto River in September?
In September, the water temperature recently averaged 29.4 °C.

When is the water warmest at W Fork San Jacinto River?
Across the measurement record, August is on average the warmest month (31.7 °C).

Open in the BrrChecker app

← All waters · Warmest rivers today · Water temperature in United States