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

TIDE TIMES for Saturday, August 8, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 34m at 3:39 am (0.3 ft)
Next high tide : 9:30 am (6.3 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 5:42 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Sep 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:346.011:427.35:430.75:441.16:077:20Waning Crescent1Fri
2Sat12:236.46:320.36:360.76:087:18Waning Crescent2Sat
3Sun12:327.71:096.97:18-0.17:250.26:097:16New Moon3Sun
4Mon1:208.01:547.38:03-0.58:14-0.26:107:14New Moon4Mon
5Tue2:098.32:397.88:48-0.89:04-0.56:117:13New Moon5Tue
6Wed2:578.33:248.19:32-0.99:54-0.86:127:11Waxing Crescent6Wed
7Thu3:468.24:108.210:18-0.810:45-0.86:137:09Waxing Crescent7Thu
8Fri4:378.04:598.211:06-0.611:39-0.76:157:07Waxing Crescent8Fri
9Sat5:327.65:528.111:57-0.26:167:06First Quarter9Sat
10Sun6:317.26:507.812:37-0.512:530.26:177:04First Quarter10Sun
11Mon7:366.87:537.51:39-0.21:530.66:187:02First Quarter11Mon
12Tue8:436.59:007.32:460.12:590.96:197:00First Quarter12Tue
13Wed9:536.310:097.23:560.34:091.06:206:58Waxing Gibbous13Wed
14Thu10:586.411:137.35:050.35:161.06:216:57Waxing Gibbous14Thu
15Fri11:566.56:050.26:150.86:226:55Waxing Gibbous15Fri
16Sat12:097.412:456.76:560.17:060.66:236:53Waxing Gibbous16Sat
17Sun12:587.41:296.97:410.17:510.56:246:51Full Moon17Sun
18Mon1:427.42:097.08:200.18:320.46:256:49Full Moon18Mon
19Tue2:227.32:457.18:560.29:110.36:276:48Full Moon19Tue
20Wed3:007.23:187.19:290.49:470.36:286:46Full Moon20Wed
21Thu3:367.03:507.110:010.510:230.46:296:44Waning Gibbous21Thu
22Fri4:126.84:227.010:330.810:590.56:306:42Waning Gibbous22Fri
23Sat4:496.54:576.911:081.011:380.76:316:40Waning Gibbous23Sat
24Sun5:306.25:366.711:461.26:326:39Waning Gibbous24Sun
25Mon6:156.06:216.612:220.912:291.56:336:37Third Quarter25Mon
26Tue7:065.87:136.51:111.01:181.66:346:35Third Quarter26Tue
27Wed8:025.68:106.52:051.12:131.76:356:33Third Quarter27Wed
28Thu9:025.79:116.73:041.13:121.66:376:31Third Quarter28Thu
29Fri10:035.910:146.94:060.94:151.36:386:30Waning Crescent29Fri
30Sat10:596.311:127.35:050.65:150.96:396:28Waning Crescent30Sat
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 6:34 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 transitional phase. Tonight's moon is 22% 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 shifting between spring and neap.

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 (22% illuminated). This places Squamscott River, Great Bay, NH in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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