Average monthly water temperature in Roslyn, the United States of America
On this page you find the mean water temperature over the year in Roslyn (New York State), the United States of America. Get insights into the water temperature fluctuations and discover what they mean for visitors.
In Roslyn, the water undergoes seasonal changes. The warmest month is August, with an average water temperature of 23°C (73°F).
The coldest water temperature month, February, has an average temperature of 4°C (39°F). It may not be the ideal time for a swim.