John's River, Adelphi Quay · River
The current water temperature at John's River is 8.9 °C (as of July 18, 2026, source: official monitoring networks).
Can you swim at John's River right now?
The current water temperature is 8.9 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at John's River?
Currently 8.9 °C (updated continuously).