Cooper River at U.s. HWY 17 at Charleston, South Carolina water temperature
Cooper River at U.s. HWY 17 at Charleston, South Carolina · River
The current water temperature at Cooper River at U.s. HWY 17 at Charleston is 29.0 °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.
Measurement series & statistics
This measurement series includes 243 data points since July 22, 2026.
Lowest recorded value: 28.7 °C on September 18, 2026 · highest value: 31.5 °C on August 20, 2026.
In September, temperatures have ranged between 28.7 °C and 30.7 °C.
The current value is 0.7 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Cooper River at U.s. HWY 17 at Charleston right now?
The current water temperature is 29.0 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Cooper River at U.s. HWY 17 at Charleston?
Currently 29.0 °C (updated continuously).
How warm is at Cooper River at U.s. HWY 17 at Charleston in September?
In September, the water temperature recently averaged 29.7 °C.
When is the water warmest at Cooper River at U.s. HWY 17 at Charleston?
Across the measurement record, July is on average the warmest month (30.5 °C).
