NOAA NDBC SJSN4

Middle Drain water temperature

Latest water temperature and buoy observations for Middle Drain from NDBC station 8537121 - Ship John Shoal, NJ (SJSN4). The station is 10.0 nautical miles from Middle Drain.

See today's Boat or Nope call for Middle Drain

Latest report

62.2°F

62.2°F is cool. Many boaters still dress as if they might end up in the water.

Water
62.2 °F
Wind
8 kt (9.2 mph)
Gust
8 kt
Seas
ft
Observed
Oct 22, 6:30 PM EDT

Wind at 8 knots is Beaufort force 3, Gentle breeze. A normal day for most open boats. Beaufort scale · Knots to mph

Source and freshness

Retrieved from the NOAA NDBC realtime 2 file. A fresh copy is reused for about 2 minutes, and a recent copy can stand in for up to 30 minutes if the feed blips. Retrieved Oct 22, 7:19 PM EDT.

NDBC station SJSN4 · Realtime file

This buoy is also the observation station for Delaware Bay and River Anchorage 1, Leipsic River, Pierson Cove, Simons River, Smyrna River.

Water temperature questions

Where does the Middle Drain water temperature come from?

Water temperature, wind, and seas on this page come from the NOAA NDBC realtime feed for station SJSN4 (8537121 - Ship John Shoal, NJ). That is the same buoy file the Middle Drain harbor page already requests. This page does not add a separate CO-OPS water-temperature product.

How fresh is the buoy reading?

The page shows the observation time from the NDBC report and the time Boat or Nope retrieved the file. The realtime file is cached for about 2 minutes when fresh, and a recent copy can be reused for up to 30 minutes if NDBC is briefly unavailable.

Why might the beach feel different from this temperature?

A buoy can sit offshore of the harbor, and shallow water warms and cools faster than the sensor. The station name and distance, when Boat or Nope has one, say how far the reading is from the harbor.

What does a cold reading mean for boating?

Water under 60°F can cause cold shock if someone falls in. The note on this page is general context. It is not a life-jacket or wetsuit rule for your boat.