Portsmouth, NH 7-day tide table

Times use Eastern Time (EDT) in 12-hour format. Heights are feet relative to the standard chart datum.

Source: NOAA CO-OPS · Prediction station Portsmouth (8423745) · Not intended for navigation.

New Hampshire · Times are local

Portsmouth, NH Tide Chart & Tide Times

Local time in Portsmouth

7:09 AM EDT

Wednesday, July 29

Use this Portsmouth tide chart for the next tide change, a seven-day range planner, exact tide tables, and verified station context.

For Portsmouth, NH, the next high tide is 12:29 PM at 7.28 ft and the next low tide is 6:08 PM at 1.13 ft. The predicted tide direction is rising.

This page combines today's tide times, a seven-day high and low tide table, and hourly predictions when supported. All times use Eastern Time (EDT) in 12-hour format, and heights are shown in feet relative to the standard chart datum.

Next tide change

Next high tide at 12:29 PM 12:29 PM · 7.28 ft

Add next tide Compare

Display

Portsmouth tides at a glance

Updated 9 days ago

Next high tide 12:29 PM 7.28 ft

Next low tide 6:08 PM 1.13 ft

Predicted direction Rising Inferred from adjacent predicted high/low events

Today's range 6.97 ft Highest minus lowest predicted tide

Tide Chart Now feature

Portsmouth Tide Brief

Prediction-based planning

More than a list of tide times: this reading turns the stored prediction into the next change, the next 24-hour sequence, and the daily range to compare across the week.

Predicted to rise toward the next high

From the preceding predicted low at 6:12 AM, the predicted tide level rises toward a high of 7.28 ft at 12:29 PM.

Low6:12 AM High12:29 PM

Now

57 min since5 hrs 20 min remaining

Shows elapsed time between predicted turns, not an observed water level.

Next 24 hours

HighToday · 12:29 PM · 7.28 ft
LowToday · 6:08 PM · 1.13 ft
HighTomorrow · 12:28 AM · 8.47 ft
LowTomorrow · 6:46 AM · 0.18 ft

Portsmouth tide times today

Add today's tides to calendar

Today's tide schedule includes 3 tide events: 1 high and 2 lows. Predicted heights span 0.32 ft to 7.28 ft, a 6.97 ft range.

Tide	Time	Height	Calendar
Low	6:12 AM	0.32 ft	Add
High	12:29 PM	7.28 ft	Add
Low	6:08 PM	1.13 ft	Add

Plan a specific day

Portsmouth 30-day tide planner

Pick any date in the next 30 days to see its stored high and low tide predictions without leaving this page.

See the 30-day range overview Scan quieter and wider-range days

Smaller range Wider range 6.17 ft–10.46 ft

Today 29 6.97 ft Thu 30 8.28 ft Fri 31 8.44 ft Aug 1 8.48 ft Sun 2 8.40 ft Mon 3 8.18 ft Tue 4 8.19 ft Wed 5 8.17 ft Thu 6 8.00 ft Fri 7 8.32 ft Sat 8 8.49 ft Sun 9 8.87 ft Mon 10 9.44 ft Tue 11 10.01 ft Wed 12 10.39 ft Thu 13 9.46 ft Fri 14 10.46 ft Sat 15 10.02 ft Sun 16 9.25 ft Mon 17 8.37 ft Tue 18 7.64 ft Wed 19 7.04 ft Thu 20 6.17 ft Fri 21 6.39 ft Sat 22 6.26 ft Sun 23 6.46 ft Mon 24 6.87 ft Tue 25 7.37 ft Wed 26 7.84 ft Thu 27 8.23 ft

Darker dates have a wider predicted high-to-low range. Select any date for its exact local tide times.

Thursday, July 30

Add this day's tides to calendar

Tide	Local time	Height	Calendar
High	12:28 AM	8.47 ft	Add
Low	6:46 AM	0.18 ft	Add
High	1:05 PM	7.46 ft	Add
Low	6:46 PM	0.98 ft	Add

What this week's tides show for Portsmouth

These highlights are calculated from the same high and low predictions shown in the seven-day table.

Highest tide 8.52 ft Fri, Jul 31 · 1:05 AM

Lowest tide 0.03 ft Sat, Aug 1 · 7:53 AM

Widest daily range 8.48 ft Saturday, August 1

Smallest daily range 6.97 ft Wednesday, July 29

Portsmouth 7-day tide chart and tide schedule

The seven-day range planner and detailed table contain 27 predicted high and low tide events in local time. The highest predicted tide is 8.52 ft on Friday, July 31, and the lowest is 0.03 ft on Saturday, August 1. The widest daily range is 8.48 ft on Saturday, August 1.

Shared weekly scale Low 0.03 ft High 8.52 ft

Today

6.97 ft range

Low 0.32 ftHigh 7.28 ft

Tomorrow

8.28 ft range

Low 0.18 ftHigh 8.47 ft

Fri, Jul 31

8.44 ft range

Low 0.08 ftHigh 8.52 ft

Sat, Aug 1

8.48 ft range

Low 0.03 ftHigh 8.50 ft

Sun, Aug 2

8.40 ft range

Low 0.03 ftHigh 8.42 ft

Mon, Aug 3

8.18 ft range

Low 0.09 ftHigh 8.27 ft

Tue, Aug 4

8.19 ft range

Low 0.22 ftHigh 8.41 ft

The widest predicted daily swing is 8.48 ft on Saturday, August 1.

Detailed seven-day tide table

Use these exact local high and low tide times when you need the individual predicted turns behind the daily range comparison.

Date	Tide events
Wed, Jul 29	Low 6:12 AM · 0.32 ft Add High 12:29 PM · 7.28 ft Add Low 6:08 PM · 1.13 ft Add
Thu, Jul 30	High 12:28 AM · 8.47 ft Add Low 6:46 AM · 0.18 ft Add High 1:05 PM · 7.46 ft Add Low 6:46 PM · 0.98 ft Add
Fri, Jul 31	High 1:05 AM · 8.52 ft Add Low 7:19 AM · 0.08 ft Add High 1:39 PM · 7.66 ft Add Low 7:24 PM · 0.82 ft Add
Sat, Aug 1	High 1:41 AM · 8.50 ft Add Low 7:53 AM · 0.03 ft Add High 2:13 PM · 7.86 ft Add Low 8:02 PM · 0.68 ft Add
Sun, Aug 2	High 2:18 AM · 8.42 ft Add Low 8:27 AM · 0.03 ft Add High 2:47 PM · 8.06 ft Add Low 8:44 PM · 0.54 ft Add
Mon, Aug 3	High 2:57 AM · 8.27 ft Add Low 9:05 AM · 0.09 ft Add High 3:25 PM · 8.26 ft Add Low 9:28 PM · 0.44 ft Add
Tue, Aug 4	High 3:41 AM · 8.06 ft Add Low 9:46 AM · 0.22 ft Add High 4:07 PM · 8.41 ft Add Low 10:18 PM · 0.38 ft Add

Why these tides apply to Portsmouth

This page uses prediction station Portsmouth (8423745), mapped 0.48 miles from the Portsmouth reference point. Predictions describe that station; exact shoreline, inlet, and harbor conditions can vary.

This station is shown with its verified high and low tide table. An hourly prediction curve is displayed only where interval predictions are available.

Prediction station: Portsmouth (8423745)
Distance: 0.48 miles
Chart datum: MLLW (standard chart reference level)
Units: Feet
Local time: Eastern Time (EDT)

How to use these predictions

Source: NOAA CO-OPS. See the data methodology and attribution.

The Tide Brief and range planner summarize stored predictions; they do not report real-time water level, currents, surf, weather, or local hazards.

Predictions are for general informational use only and are not intended for navigation.

Portsmouth tide questions

What time is high tide in Portsmouth today?

The next high tide is at 12:29 PM on Wednesday, July 29, at 7.28 ft.

What time is low tide in Portsmouth today?

The next low tide is at 6:08 PM on Wednesday, July 29, at 1.13 ft.

Is the tide rising or falling in Portsmouth?

The tide is predicted to be rising, based on the previous and next high/low predictions.

How large is the tide range in Portsmouth this week?

Across the displayed seven days, predicted heights span 8.49 ft from the lowest low to the highest high.

Which prediction station supplies this Portsmouth tide chart?

Predictions use station 8423745, Portsmouth. The station is 0.48 miles from the location reference point.