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

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 2h 23m at 5:20 am (0.6 ft)
Next high tide : 11:06 am (6.2 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 5:05 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Mar 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:597.111:356.55:060.75:460.16:195:32Waning Crescent1Tue
2Wed11:487.15:570.56:300.06:185:33Waning Crescent2Wed
3Thu12:196.712:327.26:420.47:100.06:165:34New Moon3Thu
4Fri12:586.91:117.27:220.27:450.06:145:36New Moon4Fri
5Sat1:347.01:487.17:590.18:170.16:135:37New Moon5Sat
6Sun2:067.12:237.08:340.18:480.26:115:38New Moon6Sun
7Mon2:387.12:576.99:070.19:190.36:095:39Waxing Crescent7Mon
8Tue3:097.03:316.69:420.29:520.56:075:41Waxing Crescent8Tue
9Wed3:417.04:086.410:180.310:270.76:065:42Waxing Crescent9Wed
10Thu4:176.94:496.210:590.411:080.96:045:43Waxing Crescent10Thu
11Fri4:586.85:356.011:440.611:541.16:025:44First Quarter11Fri
12Sat5:466.76:285.812:350.76:005:45First Quarter12Sat
13Sun7:416.78:275.812:461.22:320.76:596:47First Quarter13Sun
14Mon8:416.79:305.92:441.23:340.66:576:48First Quarter14Mon
15Tue9:466.910:336.33:471.04:370.36:556:49Waxing Gibbous15Tue
16Wed10:507.311:306.84:520.65:36-0.16:536:50Waxing Gibbous16Wed
17Thu11:487.75:530.16:29-0.56:526:51Waxing Gibbous17Thu
18Fri12:227.412:438.06:49-0.57:19-0.96:506:53Full Moon18Fri
19Sat1:118.01:358.37:41-1.08:07-1.16:486:54Full Moon19Sat
20Sun2:008.42:278.48:33-1.48:56-1.26:466:55Full Moon20Sun
21Mon2:488.73:198.39:25-1.59:44-1.16:456:56Waning Gibbous21Mon
22Tue3:368.74:108.010:16-1.510:34-0.86:436:57Waning Gibbous22Tue
23Wed4:268.55:047.611:09-1.211:25-0.46:416:58Waning Gibbous23Wed
24Thu5:198.26:027.212:05-0.86:397:00Waning Gibbous24Thu
25Fri6:177.87:046.712:210.11:06-0.36:387:01Third Quarter25Fri
26Sat7:207.38:096.41:220.52:100.16:367:02Third Quarter26Sat
27Sun8:267.09:156.22:270.93:180.46:347:03Third Quarter27Sun
28Mon9:336.810:206.33:371.14:250.56:327:04Waning Crescent28Mon
29Tue10:386.711:176.44:451.05:250.56:307:05Waning Crescent29Tue
30Wed11:346.85:450.96:160.56:297:07Waning Crescent30Wed
31Thu12:066.612:236.86:350.66:590.46:277:08Waning Crescent31Thu
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 8:13 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 84% 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 Waxing Gibbous (84% 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