Cooper River at Ports Authority Pier K Charleston, South Carolina water temperature
Cooper River at Ports Authority Pier K Charleston, South Carolina · River
The current water temperature at Cooper River at Ports Authority Pier K Charleston is 29.5 °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 156 data points since July 3, 2026.
Lowest recorded value: 29.4 °C on August 31, 2026 · highest value: 31.7 °C on August 17, 2026.
In September, temperatures have ranged between 29.4 °C and 29.8 °C.
The current value is 0.1 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Cooper River at Ports Authority Pier K Charleston right now?
The current water temperature is 29.5 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Cooper River at Ports Authority Pier K Charleston?
Currently 29.5 °C (updated continuously).
How warm is at Cooper River at Ports Authority Pier K Charleston in September?
In September, the water temperature recently averaged 29.6 °C.
When is the water warmest at Cooper River at Ports Authority Pier K Charleston?
Across the measurement record, July is on average the warmest month (30.6 °C).
