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

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 3h 09m at 6:05 am (-0.3 ft)
Next high tide : 11:56 am (6.7 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:15 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jun 2067

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:208.45:057.411:08-0.911:230.15:068:16Waning Gibbous1Wed
2Thu5:158.26:027.412:02-0.75:068:17Waning Gibbous2Thu
3Fri6:157.97:017.412:220.212:59-0.55:068:17Third Quarter3Fri
4Sat7:177.68:007.51:250.21:57-0.35:058:18Third Quarter4Sat
5Sun8:217.38:597.52:300.32:560.05:058:19Third Quarter5Sun
6Mon9:277.09:597.63:360.33:560.25:048:20Waning Crescent6Mon
7Tue10:326.910:567.74:420.24:560.45:048:20Waning Crescent7Tue
8Wed11:326.811:497.85:430.05:520.55:048:21Waning Crescent8Wed
9Thu12:276.86:38-0.16:430.65:048:21Waning Crescent9Thu
10Fri12:387.81:186.87:28-0.27:310.75:048:22New Moon10Fri
11Sat1:247.82:056.78:14-0.28:160.75:038:23New Moon11Sat
12Sun2:087.72:496.78:58-0.28:580.85:038:23New Moon12Sun
13Mon2:507.63:306.79:38-0.19:390.95:038:24New Moon13Mon
14Tue3:307.54:096.610:170.010:191.05:038:24Waxing Crescent14Tue
15Wed4:097.34:496.610:540.210:591.15:038:24Waxing Crescent15Wed
16Thu4:487.25:286.511:320.311:411.15:038:25Waxing Crescent16Thu
17Fri5:296.96:106.512:110.55:038:25Waxing Crescent17Fri
18Sat6:136.76:526.612:261.212:520.65:048:25First Quarter18Sat
19Sun7:006.57:366.61:141.21:340.75:048:26First Quarter19Sun
20Mon7:506.38:216.72:031.22:190.95:048:26First Quarter20Mon
21Tue8:426.29:086.92:551.13:070.95:048:26First Quarter21Tue
22Wed9:386.19:597.13:500.93:581.05:048:26Waxing Gibbous22Wed
23Thu10:366.210:517.54:470.64:520.95:058:27Waxing Gibbous23Thu
24Fri11:326.411:437.85:420.35:460.75:058:27Waxing Gibbous24Fri
25Sat12:256.76:35-0.16:390.45:058:27Full Moon25Sat
26Sun12:348.21:186.97:26-0.57:310.15:068:27Full Moon26Sun
27Mon1:278.52:117.28:18-0.88:25-0.15:068:27Full Moon27Mon
28Tue2:208.63:037.59:09-1.19:19-0.25:068:27Full Moon28Tue
29Wed3:138.73:557.710:00-1.210:13-0.35:078:27Waning Gibbous29Wed
30Thu4:078.64:487.810:52-1.111:09-0.35:078:27Waning Gibbous30Thu
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 9:00 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 5% 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 Waning Crescent (5% 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