Tides Today & Tomorrow in Portsmouth, NH

TIDE TIMES for Sunday, June 14, 2026
The tide is currently falling in Portsmouth, NH.

Next low tide : in 1h 43m at 4:55 am (-0.9 ft)
Next high tide : 11:14 am (8.2 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:02 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8423745
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Portsmouth, NH Tides - May 2013

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Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Wed	4:16	9.1	5:05	8.2	10:37	-0.6	10:58	0.4	5:35	7:44		1	Wed
2	Thu	5:21	8.7	6:09	8.1	11:40	-0.3			5:34	7:45		2	Thu
3	Fri	6:28	8.4	7:13	8.2	12:05	0.5	12:44	0.0	5:33	7:46		3	Fri
4	Sat	7:35	8.2	8:16	8.3	1:15	0.6	1:48	0.1	5:31	7:47		4	Sat
5	Sun	8:41	8.1	9:13	8.5	2:23	0.4	2:49	0.2	5:30	7:48		5	Sun
6	Mon	9:40	8.1	10:04	8.7	3:24	0.2	3:43	0.3	5:29	7:49		6	Mon
7	Tue	10:33	8.1	10:50	8.8	4:17	0.0	4:31	0.3	5:28	7:51		7	Tue
8	Wed	11:21	8.1	11:33	8.8	5:05	-0.2	5:14	0.4	5:26	7:52		8	Wed
9	Thu			12:06	8.0	5:49	-0.3	5:55	0.5	5:25	7:53		9	Thu
10	Fri	12:13	8.8	12:47	7.9	6:30	-0.3	6:34	0.7	5:24	7:54		10	Fri
11	Sat	12:51	8.7	1:27	7.8	7:08	-0.2	7:11	0.8	5:23	7:55		11	Sat
12	Sun	1:28	8.6	2:05	7.7	7:45	0.0	7:48	1.0	5:22	7:56		12	Sun
13	Mon	2:05	8.4	2:44	7.5	8:22	0.1	8:27	1.1	5:21	7:57		13	Mon
14	Tue	2:43	8.2	3:24	7.4	9:01	0.3	9:07	1.3	5:19	7:58		14	Tue
15	Wed	3:23	8.0	4:07	7.3	9:42	0.5	9:52	1.4	5:18	7:59		15	Wed
16	Thu	4:08	7.8	4:53	7.2	10:26	0.7	10:40	1.5	5:17	8:00		16	Thu
17	Fri	4:56	7.6	5:40	7.3	11:12	0.8	11:31	1.5	5:16	8:01		17	Fri
18	Sat	5:47	7.5	6:28	7.4	11:59	0.8			5:15	8:02		18	Sat
19	Sun	6:41	7.4	7:18	7.7	12:25	1.4	12:49	0.8	5:15	8:03		19	Sun
20	Mon	7:38	7.5	8:09	8.1	1:22	1.1	1:42	0.7	5:14	8:04		20	Mon
21	Tue	8:36	7.7	9:00	8.6	2:19	0.7	2:35	0.5	5:13	8:05		21	Tue
22	Wed	9:31	7.9	9:49	9.1	3:14	0.2	3:27	0.3	5:12	8:06		22	Wed
23	Thu	10:24	8.2	10:38	9.5	4:06	-0.4	4:17	0.0	5:11	8:07		23	Thu
24	Fri	11:16	8.5	11:28	9.9	4:58	-0.9	5:08	-0.3	5:10	8:08		24	Fri
25	Sat			12:09	8.7	5:49	-1.3	5:59	-0.4	5:10	8:09		25	Sat
26	Sun	12:20	10.1	1:03	8.9	6:41	-1.5	6:52	-0.5	5:09	8:10		26	Sun
27	Mon	1:13	10.2	1:56	8.9	7:34	-1.5	7:46	-0.4	5:08	8:11		27	Mon
28	Tue	2:07	10.0	2:52	8.8	8:27	-1.4	8:43	-0.2	5:08	8:12		28	Tue
29	Wed	3:03	9.7	3:49	8.7	9:23	-1.1	9:42	0.0	5:07	8:13		29	Wed
30	Thu	4:03	9.3	4:50	8.6	10:21	-0.8	10:46	0.2	5:07	8:14		30	Thu
31	Fri	5:06	8.8	5:50	8.5	11:21	-0.4	11:51	0.4	5:06	8:14		31	Fri
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (8423745)

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What time does the tide turn (slack tide) in Portsmouth, NH today?

Slack tide in Portsmouth, NH is approximately 8:04 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Portsmouth, NH?

Portsmouth, NH is currently in a spring phase. Tonight's moon is 0% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Portsmouth, NH tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Portsmouth, NH?

Tide predictions for Portsmouth, NH come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Portsmouth, NH?

Tide data for Portsmouth, NH is sourced from NOAA Station #8423745. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8423745.

What is the moon phase in Portsmouth, NH tonight?

Tonight the moon over Portsmouth, NH is New Moon (0% illuminated). This places Portsmouth, NH in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA

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