King tides in New Hampshire, 2026–27
King tides are the highest tides of the year. The next statewide king tides are Nov 25–27, when 9 of 9 spots have their highest tides of the year. Dates, times and heights below come from NOAA predictions for 9 spots in New Hampshire, worked out for the next 12 months.
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New Hampshire king tide dates
| Dates | Peak day | Spots at their highest that day |
|---|---|---|
| Nov 25–27 | Wed Nov 25 | 9 of 9 spots |
| Dec 24–26 | Thu Dec 24 | 9 of 9 spots |
| Jan 22–24 | Fri Jan 22 | 9 of 9 spots |
| Jun 6–7 | Sun Jun 6 | 9 of 9 spots |
| Jul 3–7 | Tue Jul 6 | 9 of 9 spots |
| Aug 1–5 | Wed Aug 4 | 9 of 9 spots |
| Aug 31–Sep 2 | Thu Sep 2 | 7 of 9 spots |
Big states can have more than one season: one stretch of coast may peak in fall while another peaks in winter. The table for your spot below is the one to trust.
Biggest king tides in New Hampshire
The spots where the year's highest tide stands furthest above an ordinary high tide:
- Fort Point: 11.0 ft on Dec 25 at 11:32 AM, 1.8 ft above a typical high
- Jaffrey Point: 11.0 ft on Dec 25 at 11:21 AM, 1.8 ft above a typical high
- Gosport Harbor, Isles of Shoals: 10.8 ft on Dec 25 at 11:26 AM, 1.7 ft above a typical high
- Hampton Harbor: 10.6 ft on Dec 25 at 11:38 AM, 1.7 ft above a typical high
- Portsmouth: 10.0 ft on Dec 25 at 11:46 AM, 1.6 ft above a typical high
King tide times for your spot
| Spot | Next king tides | Highest tide |
|---|---|---|
| Atlantic Heights | Nov 25–27 then Dec 24–26, Jan 22–24 | 9.4 ft Thu Nov 26, 12:14 PM 1.5 ft above a typical high |
| Dover Point | Nov 25–27 then Dec 24–26, Jan 22–24 | 8.0 ft Thu Nov 26, 1:10 PM 1.2 ft above a typical high |
| Dover, Cocheco River | Oct 28 then Nov 25–27, Dec 23–27 | 8.5 ft Wed Oct 28, 2:39 PM 1.0 ft above a typical high |
| Fort Point | Nov 25–27 then Dec 24–26, Jan 22–24 | 10.9 ft Thu Nov 26, 11:45 AM 1.7 ft above a typical high |
| Gosport Harbor, Isles of Shoals | Nov 25–27 then Dec 24–26, Jan 22–24 | 10.7 ft Thu Nov 26, 11:39 AM 1.7 ft above a typical high |
| Hampton Harbor | Nov 25–27 then Dec 24–26, Jan 22–24 | 10.5 ft Thu Nov 26, 11:51 AM 1.6 ft above a typical high |
| Jaffrey Point | Nov 25–27 then Dec 24–26, Jan 22–24 | 10.9 ft Thu Nov 26, 11:34 AM 1.7 ft above a typical high |
| Portsmouth | Nov 25–27 then Dec 24–26, Jan 22–24 | 9.9 ft Thu Nov 26, 11:59 AM 1.5 ft above a typical high |
| Squamscott River RR. Bridge | Nov 25–27 then Dec 24–26, Jan 22–24 | 8.6 ft Thu Nov 26, 1:56 PM 1.3 ft above a typical high |
Photograph the king tides
- Arrive half an hour before the peak time for your spot and stay until it passes.
- Include something people know for scale: a stair, a sign, a piling, a sea wall or a road.
- Take a matching photo from the same spot at an ordinary high tide. The pair shows the difference better than words.
- Note the place, date and time, and share it with your state's project below. Planners use these photos to see where the water will reach as sea level rises.
Stay safe
- Stay off jetties, sea walls and rock shelves near the peak. Waves run higher than usual on a king tide.
- On the Pacific coast, keep off drift logs and watch for sneaker waves; a log can roll on you in a few inches of surf.
- Don't drive or walk through flooded streets. Salt water ruins cars, and the curb and drains are hidden.
- Check the marine forecast. Onshore wind, low air pressure or heavy rain can add a foot or more to the predicted tide.
How these dates are worked out
For every spot we take NOAA's high and low tide predictions for the next 12 months and find each day's highest tide. The days in that spot's top 5% (about 18 days a year) are its king tide days, and days next to each other make one window. A statewide window is a run of days when at least a quarter of the state's spots are in theirs. Heights are in feet above mean lower low water (MLLW), the zero on tide charts. Predictions don't include weather. Not for navigation.