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 54m 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 - Jan 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:076.54:076.910:230.810:470.27:154:19Waxing Crescent1Thu
2Fri4:436.54:556.711:050.811:290.37:154:20First Quarter2Fri
3Sat5:256.75:436.511:590.87:154:21First Quarter3Sat
4Sun6:136.86:376.312:170.412:470.77:154:22First Quarter4Sun
5Mon7:017.07:376.21:050.61:470.57:154:23First Quarter5Mon
6Tue8:017.28:376.21:590.62:470.37:144:24Waxing Gibbous6Tue
7Wed9:017.49:436.32:590.63:530.07:144:25Waxing Gibbous7Wed
8Thu10:017.810:496.64:050.54:59-0.47:144:26Waxing Gibbous8Thu
9Fri11:018.111:496.95:050.25:53-0.87:144:27Full Moon9Fri
10Sat12:018.45:59-0.16:53-1.17:134:28Full Moon10Sat
11Sun12:437.212:558.66:59-0.47:41-1.37:134:29Full Moon11Sun
12Mon1:377.41:498.77:53-0.58:35-1.47:134:30Full Moon12Mon
13Tue2:317.62:438.58:47-0.69:23-1.27:124:32Waning Gibbous13Tue
14Wed3:197.73:378.29:41-0.510:17-1.07:124:33Waning Gibbous14Wed
15Thu4:137.64:317.710:35-0.311:05-0.57:114:34Waning Gibbous15Thu
16Fri5:017.55:257.211:35-0.111:59-0.17:114:35Third Quarter16Fri
17Sat5:557.36:256.712:350.27:104:36Third Quarter17Sat
18Sun6:497.07:256.212:530.41:350.47:104:38Third Quarter18Sun
19Mon7:436.88:255.91:470.82:350.67:094:39Third Quarter19Mon
20Tue8:436.79:315.82:471.13:410.77:084:40Waning Crescent20Tue
21Wed9:436.710:255.83:471.34:410.67:084:41Waning Crescent21Wed
22Thu10:376.811:195.94:411.35:290.57:074:43Waning Crescent22Thu
23Fri11:256.95:291.16:170.37:064:44Waning Crescent23Fri
24Sat12:016.112:077.16:171.06:530.27:054:45New Moon24Sat
25Sun12:436.212:437.26:530.87:290.17:054:47New Moon25Sun
26Mon1:196.41:257.37:290.78:050.07:044:48New Moon26Mon
27Tue1:556.51:557.38:050.68:35-0.17:034:49New Moon27Tue
28Wed2:316.62:317.38:410.49:11-0.17:024:50Waxing Crescent28Wed
29Thu3:016.83:077.29:170.49:41-0.17:014:52Waxing Crescent29Thu
30Fri3:316.93:437.09:590.310:170.07:004:53Waxing Crescent30Fri
31Sat4:077.04:256.810:410.210:590.16:594:54Waxing Crescent31Sat
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