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

April weather forecast and climate
Roslyn, NY

Ocean temperature

In Abril, the average ocean temperature in Roslyn, New York, is 46°F (7.8°C).
Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

Daylight

The average length of the day in Abril in Roslyn is 13.3h.

How cold is the water in Abril in Roslyn?

In Abril, the average ocean temperature in Roslyn is 46°F (7.8°C). Swimming in 46°F (7.8°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

What is the average length of the day in Abril in Roslyn?

In Abril, the average length of the day in Roslyn, New York, is 13.3h.
Average sea temperature in April - Roslyn, NY
  • Average sea temperature in April: 46°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 April - Roslyn, NY
  • Average daylight in April: 13.3h

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