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 5h 39m 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 - Aug 1979

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:346.38:006.91:460.92:010.85:338:05First Quarter1Wed
2Thu8:276.28:507.02:380.92:510.95:348:04First Quarter2Thu
3Fri9:246.29:457.23:340.73:460.85:368:03Waxing Gibbous3Fri
4Sat10:246.410:427.54:340.54:440.75:378:02Waxing Gibbous4Sat
5Sun11:236.611:387.95:320.15:410.45:388:01Waxing Gibbous5Sun
6Mon12:187.06:27-0.36:370.05:397:59Full Moon6Mon
7Tue12:338.31:127.47:20-0.77:31-0.35:407:58Full Moon7Tue
8Wed1:268.62:057.78:12-1.18:25-0.65:417:57Full Moon8Wed
9Thu2:208.82:578.09:03-1.39:19-0.85:427:55Full Moon9Thu
10Fri3:148.83:498.29:54-1.310:13-0.85:437:54Waning Gibbous10Fri
11Sat4:078.74:418.210:45-1.211:09-0.85:447:53Waning Gibbous11Sat
12Sun5:028.35:358.111:37-0.95:457:51Waning Gibbous12Sun
13Mon6:007.96:328.012:07-0.612:32-0.65:467:50Third Quarter13Mon
14Tue7:017.57:307.81:07-0.31:29-0.15:477:48Third Quarter14Tue
15Wed8:047.08:307.52:100.02:290.35:487:47Third Quarter15Wed
16Thu9:086.79:327.43:150.23:310.65:507:45Third Quarter16Thu
17Fri10:126.510:337.34:210.34:340.85:517:44Waning Crescent17Fri
18Sat11:136.511:297.35:230.35:340.85:527:42Waning Crescent18Sat
19Sun12:066.66:180.26:260.85:537:41Waning Crescent19Sun
20Mon12:197.412:546.67:060.27:130.75:547:39New Moon20Mon
21Tue1:057.41:376.77:490.17:550.65:557:38New Moon21Tue
22Wed1:467.42:166.88:280.18:340.65:567:36New Moon22Wed
23Thu2:257.42:536.99:040.19:110.55:577:34New Moon23Thu
24Fri3:027.33:286.99:370.29:460.55:587:33New Moon24Fri
25Sat3:377.24:017.010:090.210:220.55:597:31Waxing Crescent25Sat
26Sun4:127.14:347.010:420.310:590.66:017:30Waxing Crescent26Sun
27Mon4:486.95:096.911:170.411:380.66:027:28Waxing Crescent27Mon
28Tue5:276.75:476.911:550.66:037:26Waxing Crescent28Tue
29Wed6:116.66:307.012:220.712:380.76:047:25First Quarter29Wed
30Thu6:596.47:197.01:100.71:250.86:057:23First Quarter30Thu
31Fri7:536.38:137.12:030.72:170.86:067:21First Quarter31Fri
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