Tides Today & Tomorrow in Squamscott River, Great Bay, NH

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.

Next low tide (tomorrow) : in 4h 02m at 1:36 am (0.3 ft)
Next high tide (tomorrow) : 7:23 am (6.6 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 5:38 am
Moon phase : Third Quarter (55% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

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Squamscott River, Great Bay, NH Tides - Sep 1970

< Aug 1970

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Oct 1970 >

Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Tue	2:15	7.2	2:41	6.8	8:52	0.3	9:01	0.6	6:07	7:19		1	Tue
2	Wed	2:51	7.2	3:13	6.9	9:23	0.3	9:35	0.5	6:08	7:17		2	Wed
3	Thu	3:25	7.1	3:43	7.0	9:53	0.4	10:10	0.5	6:09	7:16		3	Thu
4	Fri	3:59	6.9	4:14	7.0	10:24	0.5	10:46	0.5	6:11	7:14		4	Fri
5	Sat	4:34	6.7	4:47	7.0	10:58	0.7	11:24	0.5	6:12	7:12		5	Sat
6	Sun	5:13	6.5	5:25	7.0	11:35	0.8			6:13	7:10		6	Sun
7	Mon	5:56	6.3	6:09	7.0	12:08	0.6	12:18	1.0	6:14	7:09		7	Mon
8	Tue	6:47	6.1	7:00	7.0	12:57	0.7	1:07	1.1	6:15	7:07		8	Tue
9	Wed	7:44	5.9	7:59	7.0	1:53	0.7	2:02	1.2	6:16	7:05		9	Wed
10	Thu	8:47	5.9	9:04	7.2	2:55	0.7	3:04	1.2	6:17	7:03		10	Thu
11	Fri	9:55	6.1	10:12	7.4	4:01	0.5	4:11	0.9	6:18	7:01		11	Fri
12	Sat	11:00	6.5	11:16	7.8	5:07	0.2	5:18	0.6	6:19	7:00		12	Sat
13	Sun	11:58	7.0			6:06	-0.2	6:19	0.1	6:20	6:58		13	Sun
14	Mon	12:15	8.1	12:50	7.5	6:59	-0.6	7:15	-0.4	6:21	6:56		14	Mon
15	Tue	1:10	8.4	1:41	8.0	7:49	-0.8	8:09	-0.8	6:22	6:54		15	Tue
16	Wed	2:03	8.4	2:30	8.3	8:37	-0.9	9:02	-1.0	6:24	6:53		16	Wed
17	Thu	2:56	8.3	3:18	8.4	9:25	-0.8	9:54	-1.1	6:25	6:51		17	Thu
18	Fri	3:47	8.1	4:05	8.4	10:13	-0.6	10:46	-0.9	6:26	6:49		18	Fri
19	Sat	4:39	7.7	4:55	8.1	11:01	-0.2	11:39	-0.6	6:27	6:47		19	Sat
20	Sun	5:34	7.2	5:48	7.7	11:53	0.3			6:28	6:45		20	Sun
21	Mon	6:32	6.7	6:45	7.3	12:36	-0.1	12:49	0.8	6:29	6:43		21	Mon
22	Tue	7:34	6.3	7:47	7.0	1:38	0.3	1:49	1.1	6:30	6:42		22	Tue
23	Wed	8:37	6.1	8:51	6.8	2:42	0.6	2:53	1.4	6:31	6:40		23	Wed
24	Thu	9:40	6.0	9:55	6.7	3:47	0.8	3:58	1.5	6:32	6:38		24	Thu
25	Fri	10:40	6.1	10:54	6.8	4:50	0.8	5:01	1.4	6:33	6:36		25	Fri
26	Sat	11:32	6.2	11:44	6.9	5:44	0.7	5:54	1.2	6:35	6:34		26	Sat
27	Sun			12:16	6.5	6:29	0.6	6:40	0.9	6:36	6:33		27	Sun
28	Mon	12:28	7.0	12:55	6.7	7:08	0.5	7:20	0.7	6:37	6:31		28	Mon
29	Tue	1:09	7.0	1:30	6.9	7:42	0.5	7:57	0.5	6:38	6:29		29	Tue
30	Wed	1:46	7.0	2:03	7.1	8:14	0.5	8:32	0.3	6:39	6:27		30	Wed
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (8422687)

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What time does the tide turn (slack tide) in Squamscott River, Great Bay, NH today?

Slack tide in Squamscott River, Great Bay, NH is approximately 4:29 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 Squamscott River, Great Bay, NH?

Squamscott River, Great Bay, NH is currently in a neap phase. Tonight's moon is 55% 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 minimum.

What datum are Squamscott River, Great Bay, 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 Squamscott River, Great Bay, NH?

Tide predictions for Squamscott River, Great Bay, 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 Squamscott River, Great Bay, NH?

Tide data for Squamscott River, Great Bay, NH is sourced from NOAA Station #8422687. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8422687.

What is the moon phase in Squamscott River, Great Bay, NH tonight?

Tonight the moon over Squamscott River, Great Bay, NH is Third Quarter (55% illuminated). This places Squamscott River, Great Bay, NH in a neap tide cycle, so tidal ranges are near their weekly minimum 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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