Hewlett Harbor
New York, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Hewlett Harbor, NY

Ocean temperature

In Hewlett Harbor, New York, in Mayo, the average water temperature is 54.1°F (12.3°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

In Hewlett Harbor, the average length of the day in Mayo is 14.5h.

What is the ocean temperature in Mayo in Hewlett Harbor?

In Mayo, the average ocean temperature is 54.1°F (12.3°C). Swimming in 54.1°F (12.3°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 Mayo in Hewlett Harbor?

In Hewlett Harbor, the average length of the day in Mayo is 14.5h.
Average sea temperature in May - Hewlett Harbor, NY
  • Average sea temperature in May: 54.1°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 May - Hewlett Harbor, NY
  • Average daylight in May: 14.5h

The month with the longest days is June (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9.3h).