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

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : in 5h 17m at 4:21 am (0.7 ft)
Next high tide (tomorrow) : 10:08 am (6.3 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:04 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Feb 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:207.34:417.010:540.011:14-0.16:584:56Waning Gibbous1Fri
2Sat5:067.35:336.811:450.06:574:57Third Quarter2Sat
3Sun5:597.46:326.612:040.112:420.06:554:59Third Quarter3Sun
4Mon6:577.47:376.412:590.21:440.16:545:00Third Quarter4Mon
5Tue8:017.48:476.42:000.42:520.06:535:01Waning Crescent5Tue
6Wed9:097.59:566.63:070.44:01-0.26:525:03Waning Crescent6Wed
7Thu10:157.810:596.94:150.25:05-0.56:515:04Waning Crescent7Thu
8Fri11:158.111:557.35:18-0.16:02-0.86:495:05New Moon8Fri
9Sat12:118.36:16-0.46:55-1.16:485:07New Moon9Sat
10Sun12:487.61:048.47:09-0.67:45-1.26:475:08New Moon10Sun
11Mon1:377.81:548.38:01-0.88:31-1.16:465:09New Moon11Mon
12Tue2:247.82:428.18:50-0.79:16-0.96:445:11Waxing Crescent12Tue
13Wed3:097.83:297.79:37-0.610:00-0.56:435:12Waxing Crescent13Wed
14Thu3:537.64:167.310:25-0.310:44-0.16:415:13Waxing Crescent14Thu
15Fri4:387.35:056.811:140.011:300.36:405:15Waxing Crescent15Fri
16Sat5:267.05:576.412:060.46:395:16First Quarter16Sat
17Sun6:176.76:536.012:190.71:010.76:375:17First Quarter17Sun
18Mon7:116.57:525.81:111.11:590.96:365:18First Quarter18Mon
19Tue8:096.48:535.72:081.33:021.06:345:20First Quarter19Tue
20Wed9:096.49:515.83:091.44:020.96:335:21Waxing Gibbous20Wed
21Thu10:056.610:436.04:091.34:550.76:315:22Waxing Gibbous21Thu
22Fri10:546.811:286.35:001.05:390.46:305:24Waxing Gibbous22Fri
23Sat11:387.05:450.86:190.26:285:25Waxing Gibbous23Sat
24Sun12:096.612:197.26:250.56:55-0.16:265:26Full Moon24Sun
25Mon12:466.812:577.47:040.27:30-0.36:255:27Full Moon25Mon
26Tue1:227.11:357.57:43-0.18:06-0.46:235:29Full Moon26Tue
27Wed1:577.42:147.68:22-0.38:43-0.56:225:30Waning Gibbous27Wed
28Thu2:347.62:547.59:03-0.59:22-0.56:205:31Waning Gibbous28Thu
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 7:14 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 67% 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 First Quarter (67% 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