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

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 1h 04m at 9:59 pm (-0.1 ft)
Next high tide (tomorrow) : 3:54 am (8.4 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:19 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Aug 1997

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:237.61:006.77:11-0.17:170.65:348:05New Moon1Fri
2Sat1:117.61:466.87:58-0.18:030.65:358:04New Moon2Sat
3Sun1:557.62:296.88:40-0.18:450.55:368:02New Moon3Sun
4Mon2:367.63:086.99:180.09:240.65:378:01New Moon4Mon
5Tue3:157.53:456.99:540.010:020.65:388:00Waxing Crescent5Tue
6Wed3:527.34:206.910:280.110:390.75:397:59Waxing Crescent6Wed
7Thu4:297.14:566.911:020.311:180.75:417:57Waxing Crescent7Thu
8Fri5:076.95:336.811:380.411:590.85:427:56Waxing Crescent8Fri
9Sat5:476.76:136.812:170.65:437:55First Quarter9Sat
10Sun6:326.56:566.812:430.912:590.85:447:53First Quarter10Sun
11Mon7:206.37:426.81:310.91:450.95:457:52First Quarter11Mon
12Tue8:126.28:336.92:220.92:341.05:467:50First Quarter12Tue
13Wed9:086.19:287.13:170.83:281.05:477:49Waxing Gibbous13Wed
14Thu10:086.310:267.44:160.64:260.85:487:47Waxing Gibbous14Thu
15Fri11:076.511:227.75:150.35:250.55:497:46Waxing Gibbous15Fri
16Sat12:026.96:10-0.16:210.15:507:44Waxing Gibbous16Sat
17Sun12:178.112:547.37:03-0.67:15-0.35:517:43Full Moon17Sun
18Mon1:108.51:467.77:54-0.98:08-0.65:537:41Full Moon18Mon
19Tue2:038.72:378.18:44-1.29:01-0.95:547:40Full Moon19Tue
20Wed2:568.83:288.39:34-1.39:55-1.05:557:38Waning Gibbous20Wed
21Thu3:498.74:198.410:24-1.210:49-0.95:567:37Waning Gibbous21Thu
22Fri4:428.45:128.311:15-1.011:45-0.85:577:35Waning Gibbous22Fri
23Sat5:398.06:088.112:09-0.65:587:33Third Quarter23Sat
24Sun6:397.57:067.912:45-0.51:06-0.25:597:32Third Quarter24Sun
25Mon7:427.18:077.61:48-0.22:060.26:007:30Third Quarter25Mon
26Tue8:476.89:107.42:520.13:090.66:017:28Third Quarter26Tue
27Wed9:526.610:137.33:590.24:140.76:027:27Waning Crescent27Wed
28Thu10:546.611:127.35:040.35:170.86:037:25Waning Crescent28Thu
29Fri11:506.66:010.36:120.76:057:23Waning Crescent29Fri
30Sat12:057.312:386.76:510.27:000.66:067:22Waning Crescent30Sat
31Sun12:517.41:226.87:340.17:430.56:077:20New Moon31Sun
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 12:56 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 7% 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 Crescent (7% 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