Nearby Harbors
43.0533’ N, 70.9133’ W

Squamscott River, Great Bay, NH

62°
H -°
L 45°
E
7mph
Low tide
5:22 pm
Photo Credits

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

TIDE TIMES for Tuesday, September 22, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 5m at 5:22 pm (1.4 ft)
Next high tide : 11:15 pm (6.8 ft)
Sunset today : 6:41 pm
Sunrise tomorrow : 6:31 am
Moon phase : Waxing Gibbous (83% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

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Squamscott River, Great Bay, NH Tides - Dec 1933

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:356.612:377.46:470.87:27-0.16:554:10Full Moon1Fri
2Sat1:176.51:167.47:260.98:060.06:564:09Full Moon2Sat
3Sun1:576.41:547.38:041.08:430.16:574:09Full Moon3Sun
4Mon2:356.32:317.28:411.19:200.26:584:09Waning Gibbous4Mon
5Tue3:136.23:087.19:181.29:570.36:594:09Waning Gibbous5Tue
6Wed3:516.13:486.99:581.210:360.57:004:09Waning Gibbous6Wed
7Thu4:326.14:306.810:401.311:170.67:014:09Waning Gibbous7Thu
8Fri5:156.15:166.611:271.37:024:08Third Quarter8Fri
9Sat6:006.26:056.512:010.612:171.37:034:08Third Quarter9Sat
10Sun6:466.36:586.412:460.71:101.27:044:08Third Quarter10Sun
11Mon7:336.67:536.31:330.72:051.07:044:08Third Quarter11Mon
12Tue8:226.98:526.42:230.73:030.67:054:09Waning Crescent12Tue
13Wed9:147.39:516.53:160.64:010.27:064:09Waning Crescent13Wed
14Thu10:067.710:476.74:100.54:56-0.37:074:09Waning Crescent14Thu
15Fri10:588.111:417.05:030.25:49-0.77:084:09New Moon15Fri
16Sat11:508.45:560.06:42-1.07:084:09New Moon16Sat
17Sun12:347.112:438.66:49-0.27:35-1.27:094:10New Moon17Sun
18Mon1:297.31:378.77:42-0.38:29-1.37:104:10New Moon18Mon
19Tue2:227.32:328.68:37-0.39:22-1.27:104:10Waxing Crescent19Tue
20Wed3:177.33:278.49:33-0.210:16-1.07:114:11Waxing Crescent20Wed
21Thu4:127.34:258.010:310.011:12-0.67:114:11Waxing Crescent21Thu
22Fri5:107.25:267.511:320.27:124:12First Quarter22Fri
23Sat6:097.16:307.012:09-0.312:370.47:124:12First Quarter23Sat
24Sun7:087.17:346.61:060.11:430.57:134:13First Quarter24Sun
25Mon8:067.08:396.32:050.52:490.57:134:13First Quarter25Mon
26Tue9:047.09:426.23:040.83:530.57:144:14Waxing Gibbous26Tue
27Wed9:587.010:396.14:021.04:510.37:144:15Waxing Gibbous27Wed
28Thu10:497.111:306.24:561.15:420.27:144:15Waxing Gibbous28Thu
29Fri11:357.15:431.16:270.17:144:16Waxing Gibbous29Fri
30Sat12:166.212:177.26:271.07:090.17:154:17Full Moon30Sat
31Sun12:586.212:587.27:071.07:480.17:154:18Full Moon31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8422687)

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Common Questions About Squamscott River, Great Bay, NH Tides

Collapse All
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 83% 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 (83% 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

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