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

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 2h 52m at 4:46 pm (1.5 ft)
Next high tide : 10:43 pm (6.8 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 5:26 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jun 2079

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:388.83:257.49:30-1.39:38-0.15:068:16Waxing Crescent1Thu
2Fri3:328.74:217.310:25-1.110:340.15:068:17Waxing Crescent2Fri
3Sat4:288.55:197.211:21-0.911:320.35:068:17Waxing Crescent3Sat
4Sun5:278.16:197.012:20-0.65:058:18First Quarter4Sun
5Mon6:307.77:207.012:350.61:20-0.25:058:19First Quarter5Mon
6Tue7:337.38:206.91:400.82:190.15:048:20First Quarter6Tue
7Wed8:376.99:187.02:460.83:170.45:048:20First Quarter7Wed
8Thu9:406.710:137.03:520.84:140.65:048:21Waxing Gibbous8Thu
9Fri10:416.511:057.14:540.75:080.85:048:21Waxing Gibbous9Fri
10Sat11:366.411:517.25:500.65:570.95:048:22Waxing Gibbous10Sat
11Sun12:266.46:400.46:421.15:038:23Waxing Gibbous11Sun
12Mon12:337.31:126.37:240.37:231.15:038:23Full Moon12Mon
13Tue1:147.31:556.38:050.28:021.25:038:24Full Moon13Tue
14Wed1:537.32:366.38:440.28:401.25:038:24Full Moon14Wed
15Thu2:317.33:156.39:220.29:171.25:038:24Full Moon15Thu
16Fri3:087.33:526.39:580.39:551.35:038:25Waning Gibbous16Fri
17Sat3:457.24:306.210:340.310:331.35:038:25Waning Gibbous17Sat
18Sun4:227.25:086.211:110.311:131.35:048:26Waning Gibbous18Sun
19Mon5:027.15:486.311:510.311:581.35:048:26Waning Gibbous19Mon
20Tue5:457.06:306.412:320.45:048:26Third Quarter20Tue
21Wed6:326.97:156.612:461.21:160.45:048:26Third Quarter21Wed
22Thu7:246.88:026.91:381.02:030.45:048:26Third Quarter22Thu
23Fri8:186.78:517.22:320.82:520.45:058:27Third Quarter23Fri
24Sat9:176.79:457.63:300.53:450.45:058:27Waning Crescent24Sat
25Sun10:196.710:407.94:310.24:420.45:058:27Waning Crescent25Sun
26Mon11:216.811:368.25:31-0.25:390.35:068:27Waning Crescent26Mon
27Tue12:207.06:29-0.66:360.25:068:27New Moon27Tue
28Wed12:318.51:187.17:26-0.97:320.05:078:27New Moon28Wed
29Thu1:278.72:157.28:22-1.08:280.05:078:27New Moon29Thu
30Fri2:248.73:127.39:17-1.19:240.05:088:27Waxing Crescent30Fri
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 7:44 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 transitional phase. Tonight's moon is 79% 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 shifting between spring and neap.

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 (79% illuminated). This places Squamscott River, Great Bay, NH in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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