Port Jefferson
New York, USA
Long-term weather forecast
Long-term weather forecast

February weather forecast and climate
Port Jefferson, NY

Ocean temperature

The month with the coldest seawater in Port Jefferson, New York, is Febrero, with an average ocean temperature of 39.7°F (4.3°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

The average length of the day in Febrero is 10.7h.

What month is the ocean coldest in Port Jefferson?

With an average ocean temperature of 39.7°F (4.3°C), Febrero is the month with the coldest seawater.

How cold is the water in Febrero in Port Jefferson?

In Febrero, the average ocean temperature is 39.7°F (4.3°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.

What is the average length of the day in Febrero in Port Jefferson?

In Port Jefferson, the average length of the day in Febrero is 10.7h.
Average sea temperature in February - Port Jefferson, NY
  • Average sea temperature in February: 39.7°F

The best month for swimming (with the highest average sea temperature) is August (74°F).
The coldest month (with the lowest average sea temperature) is February (39.7°F).

Average daylight in February - Port Jefferson, NY
  • Average daylight in February: 10.7h

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