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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : in 4h 01m at 1:13 am (0.5 ft)
Next high tide (tomorrow) : 7:05 am (7.3 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:04 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Feb 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:386.73:457.19:570.410:210.06:584:55Waxing Crescent1Fri
2Sat4:136.84:256.910:380.411:000.16:574:56Waxing Crescent2Sat
3Sun4:536.85:106.711:240.411:440.26:564:58First Quarter3Sun
4Mon5:376.96:016.512:140.46:554:59First Quarter4Mon
5Tue6:277.06:586.412:330.41:090.46:545:00First Quarter5Tue
6Wed7:237.18:016.31:270.42:100.36:535:02First Quarter6Wed
7Thu8:257.39:096.42:260.53:150.06:515:03Waxing Gibbous7Thu
8Fri9:297.610:146.73:300.34:21-0.36:505:04Waxing Gibbous8Fri
9Sat10:327.911:157.14:340.15:22-0.76:495:06Waxing Gibbous9Sat
10Sun11:318.35:34-0.36:18-1.16:485:07Full Moon10Sun
11Mon12:117.412:278.66:31-0.67:11-1.46:465:08Full Moon11Mon
12Tue1:057.71:218.77:26-0.98:03-1.56:455:10Full Moon12Tue
13Wed1:568.02:148.68:19-1.08:53-1.46:445:11Waning Gibbous13Wed
14Thu2:468.03:058.49:11-1.09:42-1.26:425:12Waning Gibbous14Thu
15Fri3:357.93:578.010:03-0.810:31-0.86:415:14Waning Gibbous15Fri
16Sat4:267.74:507.510:57-0.511:21-0.36:395:15Waning Gibbous16Sat
17Sun5:187.55:477.011:54-0.16:385:16Third Quarter17Sun
18Mon6:127.16:466.512:150.212:530.26:365:18Third Quarter18Mon
19Tue7:096.97:476.21:100.61:540.56:355:19Third Quarter19Tue
20Wed8:086.78:506.02:091.02:590.76:335:20Third Quarter20Wed
21Thu9:086.69:516.03:111.14:010.76:325:22Waning Crescent21Thu
22Fri10:056.710:456.14:121.14:570.56:305:23Waning Crescent22Fri
23Sat10:566.811:326.35:051.05:440.46:295:24Waning Crescent23Sat
24Sun11:417.05:510.86:260.26:275:25Waning Crescent24Sun
25Mon12:146.412:227.16:320.67:030.16:265:27New Moon25Mon
26Tue12:536.61:007.37:090.47:37-0.16:245:28New Moon26Tue
27Wed1:286.81:367.37:450.38:10-0.16:225:29New Moon27Wed
28Thu2:026.92:117.38:200.28:42-0.26:215:30New Moon28Thu
29Fri2:347.02:467.38:550.19:15-0.16:195:32Waxing Crescent29Fri
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 4:09 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 37% 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 (37% 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