Nearby Harbors
43.0533’ N, 70.9133’ W

Squamscott River, Great Bay, NH

67°
H -°
L 46°
NW
13mph
Low tide
10:55 pm
Photo Credits

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

TIDE TIMES for Monday, September 14, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 4h 55m at 10:55 pm (-0.1 ft)
Next high tide (tomorrow) : 4:47 am (7.0 ft)
Sunset today : 6:55 pm
Sunrise tomorrow : 6:22 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

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Squamscott River, Great Bay, NH Tides - Sep 1946

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:516.86:117.012:000.412:170.76:077:19First Quarter1Sun
2Mon6:416.46:586.812:500.71:021.06:087:18First Quarter2Mon
3Tue7:346.17:496.61:410.91:511.36:097:16First Quarter3Tue
4Wed8:305.88:436.52:361.12:441.66:107:14First Quarter4Wed
5Thu9:305.79:416.53:351.23:411.66:117:12First Quarter5Thu
6Fri10:295.810:386.64:361.14:401.66:127:11Waxing Gibbous6Fri
7Sat11:225.911:296.95:310.95:341.46:147:09Waxing Gibbous7Sat
8Sun12:096.26:190.76:211.16:157:07Waxing Gibbous8Sun
9Mon12:167.112:516.57:010.47:050.86:167:05Full Moon9Mon
10Tue12:587.41:316.87:400.17:470.46:177:04Full Moon10Tue
11Wed1:407.62:097.18:18-0.18:280.16:187:02Full Moon11Wed
12Thu2:217.82:487.58:56-0.39:11-0.26:197:00Full Moon12Thu
13Fri3:037.93:277.79:35-0.49:56-0.46:206:58Waning Gibbous13Fri
14Sat3:477.84:087.910:17-0.410:42-0.56:216:56Waning Gibbous14Sat
15Sun4:337.74:528.011:01-0.311:32-0.56:226:55Waning Gibbous15Sun
16Mon5:237.45:427.911:49-0.16:236:53Third Quarter16Mon
17Tue6:197.16:387.812:26-0.312:430.26:246:51Third Quarter17Tue
18Wed7:216.87:397.61:26-0.11:420.56:266:49Third Quarter18Wed
19Thu8:286.68:467.52:310.02:460.76:276:47Third Quarter19Thu
20Fri9:386.59:567.53:400.13:550.86:286:46Waning Crescent20Fri
21Sat10:466.611:037.64:500.15:040.76:296:44Waning Crescent21Sat
22Sun11:466.95:53-0.16:070.46:306:42Waning Crescent22Sun
23Mon12:027.712:397.16:47-0.27:020.26:316:40New Moon23Mon
24Tue12:567.81:277.37:36-0.37:520.06:326:38New Moon24Tue
25Wed1:457.82:117.58:21-0.38:38-0.16:336:37New Moon25Wed
26Thu2:307.72:527.59:02-0.29:22-0.16:346:35New Moon26Thu
27Fri3:137.53:317.59:410.110:030.06:366:33Waxing Crescent27Fri
28Sat3:547.24:087.310:180.310:440.16:376:31Waxing Crescent28Sat
29Sun3:356.93:467.29:560.710:250.45:385:29Waxing Crescent29Sun
30Mon4:186.64:266.910:361.011:100.65:395:28Waxing Crescent30Mon
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 14% 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 (14% 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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