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

TIDE TIMES for Sunday, July 12, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : 7:04 am (-0.6 ft)
Next high tide (tomorrow) : in 1h 59m at 12:08 am (8.3 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:15 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Aug 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:577.34:256.910:320.210:460.65:358:04Waxing Crescent1Wed
2Thu4:357.15:016.911:070.311:260.75:368:03Waxing Crescent2Thu
3Fri5:146.85:396.911:430.55:378:01Waxing Crescent3Fri
4Sat5:566.56:196.812:080.812:220.75:388:00First Quarter4Sat
5Sun6:416.37:036.812:530.91:050.95:397:59First Quarter5Sun
6Mon7:306.17:506.71:411.01:511.15:417:58First Quarter6Mon
7Tue8:235.98:416.82:321.02:401.25:427:56First Quarter7Tue
8Wed9:205.99:377.03:291.03:351.25:437:55Waxing Gibbous8Wed
9Thu10:206.010:347.24:280.84:341.05:447:53Waxing Gibbous9Thu
10Fri11:176.311:307.65:260.45:310.75:457:52Waxing Gibbous10Fri
11Sat12:106.76:190.06:260.35:467:51Waxing Gibbous11Sat
12Sun12:228.01:007.17:08-0.47:18-0.15:477:49Full Moon12Sun
13Mon1:148.31:497.67:57-0.88:10-0.55:487:48Full Moon13Mon
14Tue2:058.52:388.08:45-1.09:02-0.85:497:46Full Moon14Tue
15Wed2:568.63:278.29:33-1.19:55-0.95:507:45Waning Gibbous15Wed
16Thu3:488.54:168.410:22-1.110:48-0.95:517:43Waning Gibbous16Thu
17Fri4:418.25:088.311:12-0.911:44-0.85:527:42Waning Gibbous17Fri
18Sat5:367.86:038.212:05-0.55:547:40Third Quarter18Sat
19Sun6:367.47:017.912:43-0.51:01-0.15:557:39Third Quarter19Sun
20Mon7:407.08:037.71:45-0.22:010.35:567:37Third Quarter20Mon
21Tue8:456.79:077.52:510.13:050.65:577:35Third Quarter21Tue
22Wed9:526.510:127.43:590.24:110.85:587:34Waning Crescent22Wed
23Thu10:556.511:137.45:040.35:160.85:597:32Waning Crescent23Thu
24Fri11:526.66:030.26:130.76:007:31Waning Crescent24Fri
25Sat12:077.412:416.76:530.27:020.66:017:29Waning Crescent25Sat
26Sun12:547.41:256.87:380.17:470.56:027:27New Moon26Sun
27Mon1:387.42:056.98:170.18:280.46:037:26New Moon27Mon
28Tue2:187.42:427.08:530.29:050.46:047:24New Moon28Tue
29Wed2:557.33:167.19:270.29:410.46:067:22New Moon29Wed
30Thu3:317.13:497.19:590.410:170.46:077:20Waxing Crescent30Thu
31Fri4:076.94:227.010:310.510:530.56:087:19Waxing Crescent31Fri
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 3:36 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 5% 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 Crescent (5% 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