harbor · New York

Port Jefferson Harbor

Conditions are inside your limits now, but wind or seas approach your saved limit around 5 AM.

Right now

updated 1:18 AM
Sky
Mostly Cloudy

57°F · sets 6:11 PM

Wind
South 9 kt

gusts 14 kt

Tide
Flood

High tide 3:38 AM

Water
64.9°F

4.86 ft MLLW · 2.0 ft above prediction

Latest observations plus the current-hour NWS sky forecast. The call itself runs on the hourly forecast; nearby NDBC BRHC3 observations do not replace it.

How the day develops

Available forecast · 15 kt peak wind · 2 ft peak seas · Wave character unavailable

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Right nowGo

Right now. Go. Everything is under your limits. Wind 7 of 15 knots; seas 1 of 2.5 feet. cloudy, wind southeast 7 knots, seas 1 feet, rising, high tide at 3:38 AM.

Nearby harbors

Nearby boating conditions

Local source coverage

Marine forecast and boating conditions for Port Jefferson Harbor

A broad north-shore Long Island harbor with ferry traffic, a well-defined entrance, protected anchoring areas, and a busy village waterfront.

This harbor in New York uses Central Long Island Sound (44039) for marine observations, Bridgeport (8467150) for tide predictions, and Islip/MacArthur (KISP) for nearby aviation weather context.

Boat or Nope continuously checks the source bindings behind this planning page.