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

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 32m at 4:45 am (0.9 ft)
Next high tide : 10:32 am (5.8 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 5:26 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Sep 2078

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:496.410:067.43:530.24:040.96:087:18Waning Crescent1Thu
2Fri10:576.411:127.55:030.25:130.86:097:16Waning Crescent2Fri
3Sat11:576.66:050.06:140.76:117:14Waning Crescent3Sat
4Sun12:107.612:506.87:00-0.17:080.56:127:12New Moon4Sun
5Mon1:027.71:386.97:48-0.27:570.46:137:11New Moon5Mon
6Tue1:507.72:217.18:32-0.18:420.36:147:09New Moon6Tue
7Wed2:347.63:017.19:11-0.19:240.36:157:07New Moon7Wed
8Thu3:157.43:377.19:480.110:040.36:167:05Waxing Crescent8Thu
9Fri3:547.24:127.110:220.310:420.46:177:04Waxing Crescent9Fri
10Sat4:326.94:477.010:570.611:220.66:187:02Waxing Crescent10Sat
11Sun5:126.65:256.911:340.96:197:00Waxing Crescent11Sun
12Mon5:566.36:066.712:040.712:141.26:206:58First Quarter12Mon
13Tue6:446.06:536.512:500.912:581.46:216:56First Quarter13Tue
14Wed7:365.77:456.41:401.11:481.66:226:55First Quarter14Wed
15Thu8:335.68:416.42:361.22:421.76:246:53First Quarter15Thu
16Fri9:345.69:426.63:351.23:411.76:256:51Waxing Gibbous16Fri
17Sat10:335.810:406.84:361.04:421.56:266:49Waxing Gibbous17Sat
18Sun11:256.111:337.25:320.75:371.16:276:47Waxing Gibbous18Sun
19Mon12:126.66:200.36:280.66:286:46Waxing Gibbous19Mon
20Tue12:227.612:557.17:04-0.17:160.16:296:44Full Moon20Tue
21Wed1:097.91:387.67:47-0.48:03-0.46:306:42Full Moon21Wed
22Thu1:568.12:228.08:30-0.78:51-0.76:316:40Full Moon22Thu
23Fri2:448.23:068.39:14-0.79:40-0.96:326:38Waning Gibbous23Fri
24Sat3:338.13:528.410:00-0.710:30-1.06:336:37Waning Gibbous24Sat
25Sun4:237.94:408.410:48-0.411:23-0.86:356:35Waning Gibbous25Sun
26Mon5:177.55:338.111:39-0.16:366:33Third Quarter26Mon
27Tue6:177.16:327.812:21-0.612:360.36:376:31Third Quarter27Tue
28Wed7:226.77:377.51:24-0.21:380.76:386:29Third Quarter28Wed
29Thu8:306.58:477.32:310.12:460.96:396:28Third Quarter29Thu
30Fri9:396.49:577.23:410.33:571.06:406:26Waning Crescent30Fri
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 7:38 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 79% 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 Waxing Gibbous (79% 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