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

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 2h 03m at 1:28 pm (0.4 ft)
Next high tide : 7:25 pm (7.1 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:12 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Dec 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:256.23:197.09:291.210:110.46:554:09Waxing Crescent1Mon
2Tue4:016.14:016.910:111.310:470.56:564:09Waxing Crescent2Tue
3Wed4:436.14:436.710:531.311:290.66:574:09Waxing Crescent3Wed
4Thu5:316.15:316.611:411.36:584:09First Quarter4Thu
5Fri6:136.26:256.512:170.612:351.36:594:09First Quarter5Fri
6Sat7:016.47:196.412:590.71:291.17:004:08First Quarter6Sat
7Sun7:496.78:136.41:530.72:230.87:014:08First Quarter7Sun
8Mon8:437.19:136.52:410.63:230.47:024:08Waxing Gibbous8Mon
9Tue9:317.510:136.73:350.54:230.07:034:08Waxing Gibbous9Tue
10Wed10:257.911:076.94:290.35:17-0.57:044:08Waxing Gibbous10Wed
11Thu11:198.35:230.16:11-0.97:054:08Full Moon11Thu
12Fri12:017.112:138.66:17-0.17:05-1.27:064:09Full Moon12Fri
13Sat12:557.31:078.77:11-0.37:59-1.37:074:09Full Moon13Sat
14Sun1:497.42:018.78:05-0.38:47-1.37:074:09Waning Gibbous14Sun
15Mon2:437.42:558.68:59-0.39:41-1.17:084:09Waning Gibbous15Mon
16Tue3:377.33:498.29:53-0.110:41-0.87:094:09Waning Gibbous16Tue
17Wed4:377.24:497.810:530.111:35-0.57:094:10Third Quarter17Wed
18Thu5:317.15:497.311:590.37:104:10Third Quarter18Thu
19Fri6:317.16:556.912:35-0.11:050.57:114:11Third Quarter19Fri
20Sat7:317.08:016.51:290.32:110.67:114:11Third Quarter20Sat
21Sun8:317.09:016.22:290.63:170.67:124:12Waning Crescent21Sun
22Mon9:257.010:016.13:290.94:170.57:124:12Waning Crescent22Mon
23Tue10:197.010:556.14:231.05:110.37:124:13Waning Crescent23Tue
24Wed11:077.111:496.25:111.15:590.27:134:13Waning Crescent24Wed
25Thu11:497.15:591.16:410.17:134:14New Moon25Thu
26Fri12:316.212:317.26:411.07:230.17:144:15New Moon26Fri
27Sat1:136.31:077.27:171.07:590.17:144:15New Moon27Sat
28Sun1:496.31:497.27:530.98:350.17:144:16New Moon28Sun
29Mon2:256.32:257.28:290.99:110.17:144:17Waxing Crescent29Mon
30Tue3:016.33:017.29:110.99:410.17:144:18Waxing Crescent30Tue
31Wed3:376.43:377.19:470.910:110.27:154:18Waxing Crescent31Wed
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 4:26 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 neap phase. Tonight's moon is 52% 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 minimum.

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 Third Quarter (52% illuminated). This places Squamscott River, Great Bay, NH in a neap tide cycle, so tidal ranges are near their weekly minimum 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