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

TIDE TIMES for Thursday, July 16, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide : 9:59 pm (-0.1 ft)
Next high tide : in 1h 50m at 3:43 pm (7.5 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:19 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jan 1998

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:477.22:558.19:04-0.19:39-0.97:154:19Waxing Crescent1Thu
2Fri3:337.33:438.09:53-0.210:27-0.97:154:20Waxing Crescent2Fri
3Sat4:237.44:367.810:46-0.111:19-0.77:154:21Waxing Crescent3Sat
4Sun5:177.45:347.511:43-0.17:154:22First Quarter4Sun
5Mon6:147.46:377.212:14-0.512:450.07:154:23First Quarter5Mon
6Tue7:147.47:427.01:11-0.21:500.07:144:24First Quarter6Tue
7Wed8:167.58:506.82:120.02:570.07:144:25Waxing Gibbous7Wed
8Thu9:187.69:576.83:160.14:04-0.27:144:26Waxing Gibbous8Thu
9Fri10:187.710:576.94:190.25:06-0.47:144:27Waxing Gibbous9Fri
10Sat11:137.911:527.05:170.16:01-0.67:144:28Waxing Gibbous10Sat
11Sun12:047.96:090.16:51-0.77:134:29Full Moon11Sun
12Mon12:437.012:527.96:590.17:38-0.77:134:30Full Moon12Mon
13Tue1:307.11:387.97:450.18:22-0.67:134:31Full Moon13Tue
14Wed2:147.02:207.78:290.29:03-0.57:124:32Waning Gibbous14Wed
15Thu2:556.93:017.59:110.39:42-0.37:124:34Waning Gibbous15Thu
16Fri3:356.83:427.29:520.410:210.07:114:35Waning Gibbous16Fri
17Sat4:156.74:246.910:350.611:010.27:114:36Waning Gibbous17Sat
18Sun4:576.65:096.611:200.811:430.57:104:37Waning Gibbous18Sun
19Mon5:416.55:576.312:080.97:094:38Third Quarter19Mon
20Tue6:286.46:496.012:270.712:591.07:094:40Third Quarter20Tue
21Wed7:166.47:445.81:141.01:531.17:084:41Third Quarter21Wed
22Thu8:086.48:435.82:051.12:501.07:074:42Third Quarter22Thu
23Fri9:026.69:415.92:591.13:480.87:074:44Waning Crescent23Fri
24Sat9:546.810:346.13:551.04:420.57:064:45Waning Crescent24Sat
25Sun10:447.211:236.44:470.85:310.17:054:46Waning Crescent25Sun
26Mon11:317.65:350.56:17-0.37:044:47New Moon26Mon
27Tue12:096.712:177.96:230.17:02-0.77:034:49New Moon27Tue
28Wed12:547.11:048.27:10-0.27:47-1.07:024:50New Moon28Wed
29Thu1:407.41:518.47:58-0.58:32-1.27:014:51New Moon29Thu
30Fri2:267.72:398.48:47-0.79:19-1.37:004:53Waxing Crescent30Fri
31Sat3:127.83:298.39:37-0.810:07-1.26:594:54Waxing 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 6:51 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 7% 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 (7% 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