King tides in New Hampshire, 2026

The biggest predicted tide in New Hampshire in 2026 reaches 11.1 ft above MLLW at Jaffrey Point on Monday, June 15, at 11:54 PMlocal time. Below are all of the year's king tide windows — the top 1% of predicted highs — for NOAA reference stations along the New Hampshirecoast. 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.

Atlantic Heights

King tides (9.4 ft and above) at NOAA station 8423635. Full year: 2026 tide table.

May 18–19 — peaks 9.5 ft at 12:50 AM
Jun 14 — peaks 9.5 ft at 11:38 PM
Jun 16–17 — peaks 9.6 ft at 12:34 AM
Jul 15 — peaks 9.4 ft at 12:22 AM
Dec 24–25 — peaks 9.5 ft at 12:01 PM

Dover Point

King tides (8.0 ft and above) at NOAA station 8421897. Full year: 2026 tide table.

May 18–19 — peaks 8.1 ft at 1:46 AM
Jun 15–17 — peaks 8.2 ft at 1:30 AM
Jul 15 — peaks 8.1 ft at 1:18 AM
Dec 24–25 — peaks 8.1 ft at 12:57 PM

Dover, Cocheco River

King tides (8.7 ft and above) at NOAA station 8420411. Full year: 2026 tide table.

May 18–19 — peaks 8.7 ft at 2:50 AM
Jun 16–17 — peaks 8.8 ft at 1:43 AM
Nov 26 — peaks 8.7 ft at 1:22 PM
Dec 24–26 — peaks 8.8 ft at 1:09 PM

Fort Point

King tides (10.9 ft and above) at NOAA station 8423898. Full year: 2026 tide table.

May 18–19 — peaks 11.0 ft at 12:21 AM
Jun 14 — peaks 11.0 ft at 11:09 PM
Jun 16–17 — peaks 11.1 ft at 12:05 AM
Nov 26 — peaks 10.9 ft at 11:45 AM
Dec 24–25 — peaks 11.0 ft at 11:32 AM

Gosport Harbor, Isles of Shoals

King tides (10.7 ft and above) at NOAA station 8427031. Full year: 2026 tide table.

May 18–19 — peaks 10.8 ft at 12:15 AM
Jun 14–15 — peaks 10.8 ft at 11:59 PM
Jun 17 — peaks 10.8 ft at 12:55 AM
Jul 14 — peaks 10.7 ft at 11:47 PM
Dec 24–25 — peaks 10.8 ft at 11:26 AM

Hampton Harbor

King tides (10.5 ft and above) at NOAA station 8429489. Full year: 2026 tide table.

May 18–19 — peaks 10.6 ft at 12:27 AM
Jun 14 — peaks 10.5 ft at 11:15 PM
Jun 16–17 — peaks 10.6 ft at 12:11 AM
Jul 14 — peaks 10.5 ft at 11:59 PM
Dec 24–25 — peaks 10.5 ft at 11:38 AM

Jaffrey Point

King tides (10.9 ft and above) at NOAA station 8424601. Full year: 2026 tide table.

May 18–19 — peaks 11.1 ft at 12:10 AM
Jun 14–15 — peaks 11.1 ft at 11:54 PM
Jun 17 — peaks 11.0 ft at 12:50 AM
Jul 14 — peaks 10.9 ft at 11:42 PM
Dec 24–25 — peaks 11.0 ft at 11:21 AM

Portsmouth

King tides (9.9 ft and above) at NOAA station 8423745. Full year: 2026 tide table.

May 18–19 — peaks 10.0 ft at 12:35 AM
Jun 14 — peaks 9.9 ft at 11:23 PM
Jun 16–17 — peaks 10.0 ft at 12:19 AM
Jul 15 — peaks 9.9 ft at 12:07 AM
Dec 24–25 — peaks 10.0 ft at 11:46 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: New Hampshire king tides 2027.