Roslyn
New York, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Roslyn, NY

Ocean temperature

In Septiembre, the average ocean temperature in Roslyn, New York, is 70.2°F (21.2°C).
Note: For most, swimming in 70.2°F (21.2°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

Daylight

In Roslyn, New York, the average length of the day in Septiembre is 12.4h.

What is the ocean temperature in Septiembre in Roslyn?

In Septiembre, the average ocean temperature is 70.2°F (21.2°C). Swimming in 70.2°F (21.2°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

How many hours of daylight does Roslyn have in Septiembre?

The average length of the day in Septiembre in Roslyn is 12.4h.
Average sea temperature in September - Roslyn, NY
  • Average sea temperature in September: 70.1°F

The best month for swimming (with the highest average sea temperature) is August (74.1°F).
The coldest month (with the lowest average sea temperature) is February (39.9°F).

Average daylight in September - Roslyn, NY
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 15.1h).
The month with shortest days is December (Average daylight: 9.3h).