Hillsborough River below Hannahs Whirl near Sulphur Springs, Florida · River
The current water temperature at Hillsborough River below Hannahs Whirl near Sulphur Springs is 29.3 °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.
This measurement series includes 273 data points since July 3, 2026.
Lowest recorded value: 26.6 °C on August 7, 2026 · highest value: 31.8 °C on August 18, 2026.
In September, temperatures have ranged between 29.3 °C and 29.9 °C.
The current value is 0.3 °C below the September average of this series.
Can you swim at Hillsborough River below Hannahs Whirl near Sulphur Springs right now?
The current water temperature is 29.3 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Hillsborough River below Hannahs Whirl near Sulphur Springs?
Currently 29.3 °C (updated continuously).
How warm is at Hillsborough River below Hannahs Whirl near Sulphur Springs in September?
In September, the water temperature recently averaged 29.6 °C.
When is the water warmest at Hillsborough River below Hannahs Whirl near Sulphur Springs?
Across the measurement record, August is on average the warmest month (29.6 °C).