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

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide : 10:52 pm (1.1 ft)
Next high tide : in 3h 40m at 4:43 pm (6.5 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:09 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Aug 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:017.43:336.89:400.19:460.65:358:04Full Moon1Fri
2Sat3:367.44:076.910:130.110:230.65:368:03Waning Gibbous2Sat
3Sun4:127.34:417.010:480.111:020.55:378:02Waning Gibbous3Sun
4Mon4:507.25:187.011:250.111:450.55:388:01Waning Gibbous4Mon
5Tue5:327.16:007.212:060.25:397:59Third Quarter5Tue
6Wed6:186.96:467.312:320.512:510.25:407:58Third Quarter6Wed
7Thu7:116.87:377.41:230.41:410.35:417:57Third Quarter7Thu
8Fri8:086.78:337.52:190.32:350.45:427:55Third Quarter8Fri
9Sat9:106.79:347.73:200.23:350.45:437:54Waning Crescent9Sat
10Sun10:166.810:388.04:240.04:380.35:447:53Waning Crescent10Sun
11Mon11:207.011:398.35:28-0.35:410.05:457:51Waning Crescent11Mon
12Tue12:207.36:28-0.76:40-0.35:477:50New Moon12Tue
13Wed12:388.51:177.67:24-1.07:37-0.55:487:48New Moon13Wed
14Thu1:348.72:117.98:18-1.18:33-0.75:497:47New Moon14Thu
15Fri2:298.73:038.09:10-1.29:27-0.75:507:45New Moon15Fri
16Sat3:228.63:548.19:59-1.110:20-0.65:517:44Waxing Crescent16Sat
17Sun4:138.34:438.010:49-0.811:12-0.45:527:42Waxing Crescent17Sun
18Mon5:057.95:347.811:38-0.45:537:41Waxing Crescent18Mon
19Tue5:597.46:267.512:07-0.112:290.05:547:39First Quarter19Tue
20Wed6:557.07:207.21:030.21:220.45:557:38First Quarter20Wed
21Thu7:536.68:157.02:010.52:160.85:567:36First Quarter21Thu
22Fri8:526.39:126.93:010.73:131.15:577:34First Quarter22Fri
23Sat9:516.110:096.84:020.84:121.25:597:33Waxing Gibbous23Sat
24Sun10:496.111:036.95:010.85:091.26:007:31Waxing Gibbous24Sun
25Mon11:416.211:527.05:540.76:001.16:017:29Waxing Gibbous25Mon
26Tue12:276.46:400.56:450.96:027:28Waxing Gibbous26Tue
27Wed12:377.21:096.67:210.47:260.76:037:26Full Moon27Wed
28Thu1:187.31:486.87:580.28:040.66:047:24Full Moon28Thu
29Fri1:567.42:246.98:330.18:410.46:057:23Full Moon29Fri
30Sat2:347.42:597.19:060.09:180.36:067:21Full Moon30Sat
31Sun3:107.53:327.29:400.09:560.26:077:19Waning Gibbous31Sun
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 7:47 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 88% 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 (88% 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