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 20m at 6:33 am (0.7 ft)
Next high tide : 12:19 pm (5.9 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 - May 2082

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:527.24:336.310:400.210:421.15:367:45Waxing Crescent1Fri
2Sat4:307.25:146.211:200.311:241.25:347:46Waxing Crescent2Sat
3Sun5:137.16:016.112:060.45:337:47Waxing Crescent3Sun
4Mon6:027.16:536.112:121.212:560.45:327:48First Quarter4Mon
5Tue6:587.07:486.31:071.21:500.45:307:49First Quarter5Tue
6Wed7:587.08:466.62:061.12:460.35:297:50First Quarter6Wed
7Thu9:017.09:447.03:090.93:440.25:287:52Waxing Gibbous7Thu
8Fri10:067.110:407.54:140.54:420.15:277:53Waxing Gibbous8Fri
9Sat11:087.311:348.05:170.05:38-0.15:267:54Waxing Gibbous9Sat
10Sun12:067.56:15-0.56:31-0.35:247:55Waxing Gibbous10Sun
11Mon12:258.41:027.67:10-0.97:22-0.35:237:56Full Moon11Mon
12Tue1:158.71:577.68:03-1.28:13-0.35:227:57Full Moon12Tue
13Wed2:068.72:507.68:56-1.39:05-0.15:217:58Full Moon13Wed
14Thu2:578.73:437.49:48-1.29:560.15:207:59Waning Gibbous14Thu
15Fri3:498.44:367.110:40-0.910:490.45:198:00Waning Gibbous15Fri
16Sat4:428.05:316.911:34-0.511:440.75:188:01Waning Gibbous16Sat
17Sun5:377.66:296.612:30-0.15:178:02Third Quarter17Sun
18Mon6:367.27:276.512:431.01:270.35:168:03Third Quarter18Mon
19Tue7:366.88:246.41:451.22:240.65:158:04Third Quarter19Tue
20Wed8:366.59:196.52:471.33:190.85:148:05Third Quarter20Wed
21Thu9:356.310:116.63:491.34:131.05:138:06Waning Crescent21Thu
22Fri10:336.210:596.74:491.25:031.15:138:07Waning Crescent22Fri
23Sat11:256.211:426.95:420.95:491.15:128:08Waning Crescent23Sat
24Sun12:136.26:280.76:301.15:118:09Waning Crescent24Sun
25Mon12:237.112:576.37:100.57:091.15:108:10Waning Crescent25Mon
26Tue1:017.21:396.37:490.37:461.15:108:11New Moon26Tue
27Wed1:387.32:196.38:270.28:231.15:098:12New Moon27Wed
28Thu2:157.42:586.39:040.19:011.15:088:13New Moon28Thu
29Fri2:527.43:376.49:420.19:401.15:088:14Waxing Crescent29Fri
30Sat3:317.54:166.410:210.110:221.05:078:15Waxing Crescent30Sat
31Sun4:127.54:586.411:030.011:061.05:078:15Waxing Crescent31Sun
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 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 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