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

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 54m at 3:09 pm (0.5 ft)
Next high tide : 9:08 pm (7.6 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:13 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Nov 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:006.89:217.33:010.33:270.56:184:36Waxing Gibbous1Wed
2Thu9:577.410:227.54:000.04:290.06:194:34Waxing Gibbous2Thu
3Fri10:497.911:187.74:54-0.25:26-0.56:204:33Waxing Gibbous3Fri
4Sat11:388.35:45-0.46:19-1.06:224:32Full Moon4Sat
5Sun12:127.812:278.66:34-0.57:11-1.26:234:31Full Moon5Sun
6Mon1:047.81:158.77:23-0.48:02-1.36:244:29Full Moon6Mon
7Tue1:567.62:048.58:12-0.28:53-1.16:264:28Waning Gibbous7Tue
8Wed2:487.42:548.39:020.19:44-0.86:274:27Waning Gibbous8Wed
9Thu3:407.13:467.99:530.410:38-0.36:284:26Waning Gibbous9Thu
10Fri4:356.74:417.410:470.811:350.16:294:25Waning Gibbous10Fri
11Sat5:336.45:417.011:461.16:314:24Third Quarter11Sat
12Sun6:326.26:426.712:340.412:481.36:324:23Third Quarter12Sun
13Mon7:316.27:436.51:330.71:511.46:334:22Third Quarter13Mon
14Tue8:276.28:426.42:300.92:541.46:344:21Third Quarter14Tue
15Wed9:196.49:386.33:240.93:521.26:364:20Waning Crescent15Wed
16Thu10:066.610:286.44:130.94:430.96:374:19Waning Crescent16Thu
17Fri10:476.911:136.44:560.95:280.76:384:18Waning Crescent17Fri
18Sat11:257.111:556.55:340.96:080.46:404:17Waning Crescent18Sat
19Sun12:017.26:100.96:450.26:414:16New Moon19Sun
20Mon12:356.512:367.36:450.97:210.16:424:16New Moon20Mon
21Tue1:146.51:117.47:210.97:580.06:434:15New Moon21Tue
22Wed1:526.41:487.47:580.98:360.06:444:14New Moon22Wed
23Thu2:306.42:277.48:370.99:170.06:464:14Waxing Crescent23Thu
24Fri3:106.33:097.49:200.910:010.16:474:13Waxing Crescent24Fri
25Sat3:546.33:567.410:061.010:490.16:484:12Waxing Crescent25Sat
26Sun4:446.34:497.310:581.011:420.16:494:12First Quarter26Sun
27Mon5:406.45:487.111:561.06:504:11First Quarter27Mon
28Tue6:376.66:517.012:370.212:590.86:524:11First Quarter28Tue
29Wed7:366.87:567.01:350.22:040.66:534:10First Quarter29Wed
30Thu8:357.29:027.02:330.23:100.36:544:10Waxing Gibbous30Thu
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 6:08 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 transitional phase. Tonight's moon is 30% 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 (30% 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