San Joaquin River above Merced River near Newman, California water temperature
San Joaquin River above Merced River near Newman, California · River
The current water temperature at San Joaquin River above Merced River near Newman is 22.9 °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.
Measurement series & statistics
This measurement series includes 180 data points since July 3, 2026.
Lowest recorded value: 20.8 °C on August 30, 2026 · highest value: 29.9 °C on August 10, 2026.
In September, temperatures have ranged between 22.9 °C and 25.5 °C.
The current value is 1.2 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at San Joaquin River above Merced River near Newman right now?
The current water temperature is 22.9 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at San Joaquin River above Merced River near Newman?
Currently 22.9 °C (updated continuously).
How warm is at San Joaquin River above Merced River near Newman in September?
In September, the water temperature recently averaged 24.1 °C.
When is the water warmest at San Joaquin River above Merced River near Newman?
Across the measurement record, July is on average the warmest month (26.0 °C).
