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

TIDE TIMES for Saturday, August 1, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 3h 29m at 10:26 pm (0.6 ft)
Next high tide (tomorrow) : 4:15 am (7.3 ft)
Sunset today : 8:05 pm
Sunrise tomorrow : 5:34 am
Moon phase : Waning Gibbous (91% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jun 1979

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:296.87:146.412:391.21:130.55:078:15First Quarter1Fri
2Sat7:206.68:036.41:311.32:000.75:068:16First Quarter2Sat
3Sun8:126.48:526.52:231.42:480.95:068:17First Quarter3Sun
4Mon9:066.39:426.63:181.33:380.95:058:17First Quarter4Mon
5Tue10:026.310:306.84:141.24:280.95:058:18Waxing Gibbous5Tue
6Wed10:556.411:167.15:070.95:170.95:048:19Waxing Gibbous6Wed
7Thu11:456.511:597.45:560.66:020.75:048:20Waxing Gibbous7Thu
8Fri12:326.76:410.26:470.55:048:20Waxing Gibbous8Fri
9Sat12:417.71:176.97:26-0.17:310.35:048:21Full Moon9Sat
10Sun1:258.02:037.18:10-0.58:170.25:038:21Full Moon10Sun
11Mon2:108.22:507.28:56-0.79:040.15:038:22Full Moon11Mon
12Tue2:578.43:387.49:44-0.99:540.05:038:23Waning Gibbous12Tue
13Wed3:458.44:287.410:32-0.910:450.05:038:23Waning Gibbous13Wed
14Thu4:378.35:217.511:23-0.911:400.05:038:24Waning Gibbous14Thu
15Fri5:328.16:187.512:18-0.85:038:24Third Quarter15Fri
16Sat6:327.97:177.512:390.11:14-0.65:038:24Third Quarter16Sat
17Sun7:347.68:177.61:420.22:13-0.35:038:25Third Quarter17Sun
18Mon8:397.39:177.62:470.23:13-0.15:038:25Third Quarter18Mon
19Tue9:447.110:177.73:530.24:140.15:038:25Waning Crescent19Tue
20Wed10:497.011:147.84:590.15:140.25:038:26Waning Crescent20Wed
21Thu11:487.05:59-0.16:100.35:048:26Waning Crescent21Thu
22Fri12:067.912:437.06:53-0.37:010.35:048:26New Moon22Fri
23Sat12:567.91:337.07:43-0.47:490.45:048:26New Moon23Sat
24Sun1:427.92:217.08:30-0.48:340.55:048:26New Moon24Sun
25Mon2:267.83:056.99:13-0.39:170.65:058:27New Moon25Mon
26Tue3:087.73:476.89:54-0.29:580.75:058:27Waxing Crescent26Tue
27Wed3:487.54:276.810:33-0.110:390.95:058:27Waxing Crescent27Wed
28Thu4:287.45:076.711:120.111:201.05:068:27Waxing Crescent28Thu
29Fri5:097.15:496.611:510.35:068:27Waxing Crescent29Fri
30Sat5:526.96:326.612:041.112:320.55:078:27First Quarter30Sat
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 1:20 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 91% 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 Gibbous (91% 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