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

March weather forecast and climate
Hewlett Harbor, NY

Ocean temperature

In Marzo, the average ocean temperature in Hewlett Harbor, New York, is 40.6°F (4.8°C).
Note: For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

Daylight

In Hewlett Harbor, the average length of the day in Marzo is 12h.

What is the water temperature in Marzo in Hewlett Harbor?

In Hewlett Harbor, New York, the average seawater temperature in Marzo is 40.6°F (4.8°C). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

How many hours of daylight does Hewlett Harbor have in Marzo?

The average length of the day in Marzo in Hewlett Harbor, New York, is 12h.
Average sea temperature in March - Hewlett Harbor, NY
  • Average sea temperature in March: 40.7°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 March - Hewlett Harbor, NY
  • Average daylight in March: 12h

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