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

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 4h 09m at 11:33 pm (1.0 ft)
Next high tide (tomorrow) : 5:20 am (7.1 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:10 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Oct 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:186.711:347.15:260.45:430.86:416:25Waxing Gibbous1Fri
2Sat12:076.86:180.36:330.66:426:23Waxing Gibbous2Sat
3Sun12:227.212:517.07:020.37:180.56:436:21Waxing Gibbous3Sun
4Mon1:067.21:307.17:420.27:580.36:446:20Full Moon4Mon
5Tue1:467.22:067.28:170.38:350.36:456:18Full Moon5Tue
6Wed2:247.22:407.28:500.39:100.26:466:16Full Moon6Wed
7Thu3:007.13:127.29:220.49:440.26:486:14Full Moon7Thu
8Fri3:356.93:447.29:540.610:180.36:496:13Waning Gibbous8Fri
9Sat4:106.84:177.110:280.710:550.46:506:11Waning Gibbous9Sat
10Sun4:476.64:537.011:050.911:350.56:516:09Waning Gibbous10Sun
11Mon5:286.45:347.011:461.06:526:07Waning Gibbous11Mon
12Tue6:146.36:226.912:200.612:321.16:536:06Third Quarter12Tue
13Wed7:066.27:176.91:110.61:251.26:556:04Third Quarter13Wed
14Thu8:036.28:167.02:060.62:221.16:566:02Third Quarter14Thu
15Fri9:036.49:197.13:050.53:240.96:576:01Waning Crescent15Fri
16Sat10:046.710:237.44:060.34:280.66:585:59Waning Crescent16Sat
17Sun11:027.211:237.85:06-0.15:290.16:595:58Waning Crescent17Sun
18Mon11:557.76:01-0.46:26-0.57:015:56Waning Crescent18Mon
19Tue12:198.112:468.26:53-0.87:20-1.07:025:54New Moon19Tue
20Wed1:138.31:368.67:43-1.08:12-1.37:035:53New Moon20Wed
21Thu2:068.42:268.88:33-1.09:05-1.47:045:51New Moon21Thu
22Fri2:598.33:168.89:24-0.99:57-1.47:055:50Waxing Crescent22Fri
23Sat3:528.14:078.610:14-0.610:51-1.17:075:48Waxing Crescent23Sat
24Sun4:477.75:008.311:07-0.211:46-0.87:085:47Waxing Crescent24Sun
25Mon5:447.35:577.812:030.27:095:45First Quarter25Mon
26Tue6:457.06:597.412:46-0.31:040.67:105:44First Quarter26Tue
27Wed7:486.78:037.11:480.12:080.97:125:42First Quarter27Wed
28Thu8:516.69:076.92:520.33:131.17:135:41First Quarter28Thu
29Fri9:516.610:086.83:540.54:181.07:145:39Waxing Gibbous29Fri
30Sat10:476.711:046.84:530.65:170.97:155:38Waxing Gibbous30Sat
31Sun11:356.811:546.95:440.66:080.77:175:37Waxing Gibbous31Sun
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 2:26 am — 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 81% 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 Waning Gibbous (81% 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