Shelter Island Heights
New York, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Shelter Island Heights, NY

Ocean temperature

In Mayo, the average ocean temperature in Shelter Island Heights, New York, is 51.8°F (11°C).
Note: Swimming in 51.8°F (11°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.

Daylight

The average length of the day in Mayo is 14.5h.

What is the ocean temperature in Mayo in Shelter Island Heights?

In Shelter Island Heights, the average seawater temperature in Mayo is 51.8°F (11°C). 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.

What is the average length of the day in Mayo in Shelter Island Heights?

In Shelter Island Heights, the average length of the day in Mayo is 14.5h.
Average sea temperature in May - Shelter Island Heights, NY
  • Average sea temperature in May: 51.9°F

The best month for swimming (with the highest average sea temperature) is August (72.1°F).
The coldest month (with the lowest average sea temperature) is February (38.8°F).

Average daylight in May - Shelter Island Heights, NY
  • Average daylight in May: 14.5h

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