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

TIDE TIMES for Sunday, July 26, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 1h 01m at 6:29 pm (1.4 ft)
Next high tide (tomorrow) : 12:23 am (7.0 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 5:28 am
Moon phase : Waxing Gibbous (92% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jun 1987

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:587.05:476.111:500.511:531.55:078:15Waxing Crescent1Mon
2Tue5:426.86:326.112:330.65:068:16Waxing Crescent2Tue
3Wed6:306.77:186.112:401.51:170.75:068:17First Quarter3Wed
4Thu7:196.58:046.31:311.52:020.85:058:18First Quarter4Thu
5Fri8:106.48:506.52:231.52:480.95:058:18First Quarter5Fri
6Sat9:046.39:376.83:171.33:350.95:048:19First Quarter6Sat
7Sun10:006.310:247.14:121.04:250.85:048:20Waxing Gibbous7Sun
8Mon10:556.411:127.55:070.65:150.75:048:20Waxing Gibbous8Mon
9Tue11:496.611:597.96:000.26:050.65:048:21Waxing Gibbous9Tue
10Wed12:416.86:50-0.36:550.45:038:21Full Moon10Wed
11Thu12:488.21:337.07:41-0.67:460.35:038:22Full Moon11Thu
12Fri1:398.42:277.18:33-0.98:380.25:038:23Full Moon12Fri
13Sat2:328.63:207.29:26-1.09:320.15:038:23Waning Gibbous13Sat
14Sun3:268.64:157.210:19-1.010:280.15:038:24Waning Gibbous14Sun
15Mon4:228.45:117.211:14-0.911:260.25:038:24Waning Gibbous15Mon
16Tue5:208.26:107.212:10-0.75:038:24Waning Gibbous16Tue
17Wed6:227.87:107.312:280.41:08-0.45:038:25Third Quarter17Wed
18Thu7:257.58:087.31:320.52:06-0.15:038:25Third Quarter18Thu
19Fri8:287.19:067.32:380.53:030.25:038:25Third Quarter19Fri
20Sat9:326.810:037.43:430.54:010.55:038:26Waning Crescent20Sat
21Sun10:356.610:577.44:480.44:580.75:048:26Waning Crescent21Sun
22Mon11:346.511:477.45:460.35:520.95:048:26Waning Crescent22Mon
23Tue12:276.46:390.26:411.05:048:26Waning Crescent23Tue
24Wed12:347.41:166.47:270.17:261.15:048:26New Moon24Wed
25Thu1:187.42:016.48:110.18:081.15:058:27New Moon25Thu
26Fri2:007.42:436.38:530.18:491.25:058:27New Moon26Fri
27Sat2:407.43:236.39:320.29:271.25:068:27New Moon27Sat
28Sun3:197.34:016.310:090.210:061.25:068:27Waxing Crescent28Sun
29Mon3:567.24:386.310:440.310:441.25:068:27Waxing Crescent29Mon
30Tue4:347.15:166.311:210.411:251.35:078:27Waxing Crescent30Tue
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 9:26 pm — 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 92% 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 (92% 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