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

TIDE TIMES for Tuesday, July 14, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 2h 48m at 8:01 am (-0.9 ft)
Next high tide : 1:54 pm (7.1 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:17 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jan 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:306.910:026.33:320.74:160.57:154:19Waning Crescent1Sat
2Sun10:217.010:556.34:260.85:090.47:154:19Waning Crescent2Sun
3Mon11:067.111:426.35:150.85:550.27:154:20Waning Crescent3Mon
4Tue11:497.25:580.86:370.17:154:21New Moon4Tue
5Wed12:256.412:287.36:380.87:160.07:154:22New Moon5Wed
6Thu1:056.51:067.37:150.77:52-0.17:154:23New Moon6Thu
7Fri1:436.51:437.37:510.78:27-0.17:144:24New Moon7Fri
8Sat2:196.52:187.38:270.79:01-0.17:144:25New Moon8Sat
9Sun2:546.52:537.39:030.79:35-0.17:144:26Waxing Crescent9Sun
10Mon3:296.53:307.29:410.710:120.07:144:27Waxing Crescent10Mon
11Tue4:066.54:107.110:220.710:520.07:134:28Waxing Crescent11Tue
12Wed4:466.64:547.011:080.611:350.17:134:30Waxing Crescent12Wed
13Thu5:306.75:456.811:580.67:134:31First Quarter13Thu
14Fri6:196.96:406.712:230.212:520.57:124:32First Quarter14Fri
15Sat7:127.07:406.61:140.21:510.47:124:33First Quarter15Sat
16Sun8:097.38:466.62:100.32:550.17:114:34Waxing Gibbous16Sun
17Mon9:107.69:526.73:110.24:00-0.27:114:35Waxing Gibbous17Mon
18Tue10:117.910:547.04:130.15:02-0.67:104:37Waxing Gibbous18Tue
19Wed11:098.211:527.25:13-0.15:59-1.07:104:38Full Moon19Wed
20Thu12:068.56:10-0.46:55-1.37:094:39Full Moon20Thu
21Fri12:487.41:018.77:05-0.67:48-1.47:084:40Full Moon21Fri
22Sat1:427.61:548.77:59-0.68:40-1.47:084:42Full Moon22Sat
23Sun2:347.72:478.58:52-0.69:30-1.27:074:43Waning Gibbous23Sun
24Mon3:247.63:398.19:45-0.510:20-0.97:064:44Waning Gibbous24Mon
25Tue4:157.54:327.710:39-0.211:11-0.57:054:46Waning Gibbous25Tue
26Wed5:077.35:277.211:350.17:044:47Third Quarter26Wed
27Thu6:017.06:256.712:03-0.112:330.47:044:48Third Quarter27Thu
28Fri6:556.87:246.312:560.41:330.67:034:49Third Quarter28Fri
29Sat7:506.78:256.01:510.82:350.77:024:51Third Quarter29Sat
30Sun8:476.69:265.92:481.03:380.77:014:52Waning Crescent30Sun
31Mon9:426.610:235.93:471.14:350.67:004:53Waning Crescent31Mon
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 10:57 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 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 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 New Moon (0% 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