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

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : 9:10 am (0.2 ft)
Next high tide (tomorrow) : in 4h 04m at 2:25 am (7.4 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 5:31 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Feb 2085

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:137.46:496.512:130.012:560.06:574:56First Quarter1Thu
2Fri7:127.17:546.21:110.52:010.36:564:58First Quarter2Fri
3Sat8:146.99:005.92:130.93:080.56:554:59Waxing Gibbous3Sat
4Sun9:176.810:035.93:181.14:130.56:545:00Waxing Gibbous4Sun
5Mon10:166.810:576.04:211.15:100.46:525:02Waxing Gibbous5Mon
6Tue11:086.911:456.25:151.05:580.36:515:03Waxing Gibbous6Tue
7Wed11:537.06:020.86:400.26:505:04Full Moon7Wed
8Thu12:276.412:347.16:440.77:180.16:495:06Full Moon8Thu
9Fri1:056.51:127.27:220.57:510.06:475:07Full Moon9Fri
10Sat1:406.71:487.27:570.48:230.06:465:08Full Moon10Sat
11Sun2:136.82:217.18:310.38:530.06:455:10Full Moon11Sun
12Mon2:446.92:557.09:060.39:240.16:435:11Waning Gibbous12Mon
13Tue3:146.93:296.89:410.39:570.26:425:12Waning Gibbous13Tue
14Wed3:477.04:066.610:190.310:330.46:415:14Waning Gibbous14Wed
15Thu4:237.04:496.411:020.311:150.56:395:15Waning Gibbous15Thu
16Fri5:067.05:376.211:500.46:385:16Third Quarter16Fri
17Sat5:557.06:336.012:020.712:440.46:365:18Third Quarter17Sat
18Sun6:527.07:366.012:560.81:440.46:355:19Third Quarter18Sun
19Mon7:567.18:456.11:570.82:510.36:335:20Waning Crescent19Mon
20Tue9:047.39:546.43:040.73:590.06:325:22Waning Crescent20Tue
21Wed10:117.710:556.84:120.45:01-0.46:305:23Waning Crescent21Wed
22Thu11:118.111:507.45:14-0.15:57-0.86:295:24New Moon22Thu
23Fri12:078.46:12-0.66:49-1.26:275:25New Moon23Fri
24Sat12:427.81:018.57:06-1.07:38-1.36:255:27New Moon24Sat
25Sun1:318.21:538.57:59-1.28:26-1.36:245:28New Moon25Sun
26Mon2:198.32:448.38:51-1.39:13-1.16:225:29Waxing Crescent26Mon
27Tue3:068.33:347.99:41-1.110:01-0.76:215:31Waxing Crescent27Tue
28Wed3:548.14:267.410:33-0.810:50-0.26:195:32Waxing Crescent28Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8422687)

Common Questions About Squamscott River, Great Bay, NH Tides

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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 5:47 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 spring phase. Tonight's moon is 100% 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 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 Full Moon (100% illuminated). This places Squamscott River, Great Bay, 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