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

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 2h 14m at 8:57 pm (1.2 ft)
Next high tide (tomorrow) : 2:49 am (7.3 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 5:07 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jan 2049

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:077.810:496.84:110.34:59-0.47:154:19Waning Crescent1Fri
2Sat11:018.211:497.15:050.05:53-0.97:154:20New Moon2Sat
3Sun12:018.66:05-0.36:47-1.27:154:21New Moon3Sun
4Mon12:437.412:558.86:59-0.67:41-1.47:144:22New Moon4Mon
5Tue1:377.71:498.87:53-0.78:35-1.57:144:23Waxing Crescent5Tue
6Wed2:317.82:438.78:47-0.89:23-1.47:144:24Waxing Crescent6Wed
7Thu3:197.93:378.49:41-0.710:17-1.17:144:25Waxing Crescent7Thu
8Fri4:137.84:317.910:41-0.511:11-0.77:144:26Waxing Crescent8Fri
9Sat5:077.65:317.411:35-0.27:144:27First Quarter9Sat
10Sun6:017.46:316.912:05-0.312:410.17:134:28First Quarter10Sun
11Mon7:017.27:316.512:590.21:410.37:134:30First Quarter11Mon
12Tue8:017.08:376.21:590.62:470.57:134:31First Quarter12Tue
13Wed8:556.99:376.02:590.93:470.57:124:32Waxing Gibbous13Wed
14Thu9:556.910:376.13:591.04:470.47:124:33Waxing Gibbous14Thu
15Fri10:437.011:256.24:531.05:350.37:114:34Waxing Gibbous15Fri
16Sat11:317.15:410.96:230.27:114:35Waxing Gibbous16Sat
17Sun12:076.312:137.26:230.87:050.17:104:37Full Moon17Sun
18Mon12:496.412:557.37:050.77:410.07:094:38Full Moon18Mon
19Tue1:256.51:317.37:410.68:11-0.17:094:39Full Moon19Tue
20Wed2:016.62:077.38:170.58:41-0.17:084:40Full Moon20Wed
21Thu2:376.72:377.28:470.59:17-0.17:074:42Waning Gibbous21Thu
22Fri3:076.83:137.19:230.49:470.07:074:43Waning Gibbous22Fri
23Sat3:436.83:497.010:050.410:230.17:064:44Waning Gibbous23Sat
24Sun4:196.94:316.810:470.411:050.27:054:46Waning Gibbous24Sun
25Mon4:557.05:196.611:350.411:530.37:044:47Third Quarter25Mon
26Tue5:437.06:136.412:230.47:034:48Third Quarter26Tue
27Wed6:377.17:136.212:410.51:230.37:024:49Third Quarter27Wed
28Thu7:377.28:196.21:350.52:290.27:014:51Waning Crescent28Thu
29Fri8:377.49:256.42:410.53:350.07:004:52Waning Crescent29Fri
30Sat9:437.710:316.73:470.44:41-0.46:594:53Waning Crescent30Sat
31Sun10:498.011:317.14:530.15:41-0.86:584:55Waning 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 11:53 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 100% 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 Full Moon (100% 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