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Tides

King tides in Delaware, 2026

The biggest predicted tide in Delaware in 2026 reaches 7.0 ft above MLLW at Mahon River entrance on Sunday, May 17, at 10:55 PM local time. Below are all of the year's king tide windows — the top 1% of predicted highs — for NOAA reference stations along the Delawarecoast. King tides are perigean spring tides: they arrive when a full or new moon lines up with the moon's closest approach to Earth, and they preview the flooding that sea level rise will make routine. Read how king tides work.

Brandywine Shoal Light

King tides (6.4 ft and above) at NOAA station 8555889. Full year: 2026 tide table.

  • May 16–18 — peaks 6.5 ft at 10:11 PM
  • Jun 14–16 — peaks 6.5 ft at 9:58 PM
  • Jul 13–14 — peaks 6.4 ft at 9:46 PM

Delaware City

King tides (6.8 ft and above) at NOAA station 8551762. Full year: 2026 tide table.

  • May 16 — peaks 6.9 ft at 11:45 PM
  • May 18–19 — peaks 6.9 ft at 12:36 AM
  • Jun 13–14 — peaks 7.0 ft at 11:28 PM
  • Jun 16 — peaks 6.9 ft at 12:22 AM
  • Jul 13 — peaks 6.8 ft at 11:15 PM
  • Jul 15 — peaks 6.8 ft at 12:10 AM

Indian River Inlet (Coast Guard Station)

King tides (3.6 ft and above) at NOAA station 8558690. Full year: 2026 tide table.

  • May 17 — peaks 3.6 ft at 10:01 PM
  • Jun 14–15 — peaks 3.6 ft at 9:53 PM
  • Jul 13–14 — peaks 3.6 ft at 9:42 PM
  • Oct 27–28 — peaks 3.6 ft at 10:37 AM
  • Nov 25 — peaks 3.6 ft at 8:34 AM

LEWES (BREAKWATER HARBOR)

King tides (5.5 ft and above) at NOAA station 8557380. Full year: 2026 tide table.

  • May 17–18 — peaks 5.6 ft at 9:59 PM
  • Jun 14–16 — peaks 5.6 ft at 9:47 PM
  • Jul 13–14 — peaks 5.6 ft at 9:35 PM
  • Oct 28 — peaks 5.5 ft at 10:38 AM

Little Assawoman Bay

King tides (1.3 ft and above) at NOAA station 8559957. Full year: 2026 tide table.

  • Sep 7–8 — peaks 1.3 ft at 9:31 PM
  • Oct 3–6 — peaks 1.4 ft at 8:15 PM
  • Oct 10–11 — peaks 1.3 ft at 12:25 PM

Mahon River entrance

King tides (6.9 ft and above) at NOAA station 8554399. Full year: 2026 tide table.

  • Apr 18 — peaks 6.9 ft at 11:12 PM
  • May 16–18 — peaks 7.0 ft at 10:55 PM
  • Jun 14–16 — peaks 7.0 ft at 10:42 PM
  • Jul 14 — peaks 6.9 ft at 10:30 PM

REEDY POINT

King tides (6.5 ft and above) at NOAA station 8551910. Full year: 2026 tide table.

  • May 16 — peaks 6.6 ft at 11:36 PM
  • May 18 — peaks 6.6 ft at 12:26 AM
  • Jun 13–14 — peaks 6.6 ft at 11:19 PM
  • Jun 16–17 — peaks 6.6 ft at 12:13 AM
  • Jul 13 — peaks 6.6 ft at 11:07 PM
  • Jul 15 — peaks 6.6 ft at 12:02 AM

Rosedale Beach, Indian River

King tides (3.7 ft and above) at NOAA station 8558814. Full year: 2026 tide table.

  • May 17 — peaks 3.7 ft at 10:57 PM
  • Jun 14–15 — peaks 3.7 ft at 10:42 PM
  • Jul 13–14 — peaks 3.7 ft at 9:32 PM
  • Oct 27–29 — peaks 3.8 ft at 11:37 AM

NOAA CO-OPS harmonic predictions, datum MLLW, station local time. Actual water level can run higher with storms, onshore wind, and low pressure — king tide + storm is the flooding combination to watch. Predictions are for planning, not navigation.

Also available: Delaware king tides 2027.