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

TIDE TIMES for Sunday, June 28, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 3h 47m at 7:44 am (0.4 ft)
Next high tide : 1:32 pm (6.2 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 5:06 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jul 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:137.43:546.410:030.110:021.15:088:26Waning Gibbous1Sat
2Sun3:527.34:326.410:390.210:411.15:098:26Waning Gibbous2Sun
3Mon4:307.25:096.511:140.311:211.15:098:26Waning Gibbous3Mon
4Tue5:097.05:476.511:500.55:108:26Waning Gibbous4Tue
5Wed5:506.76:276.612:041.212:280.65:108:25Third Quarter5Wed
6Thu6:346.57:076.612:491.21:080.75:118:25Third Quarter6Thu
7Fri7:226.37:506.71:361.21:500.95:128:25Third Quarter7Fri
8Sat8:126.18:366.92:271.12:361.05:138:24Third Quarter8Sat
9Sun9:076.09:277.13:200.93:261.15:138:24Waning Crescent9Sun
10Mon10:076.010:227.34:180.74:221.15:148:23Waning Crescent10Mon
11Tue11:076.111:187.65:170.45:190.95:158:23Waning Crescent11Tue
12Wed12:046.46:140.16:160.75:168:22Waning Crescent12Wed
13Thu12:138.012:596.77:09-0.37:110.45:168:22New Moon13Thu
14Fri1:088.31:547.08:02-0.78:060.15:178:21New Moon14Fri
15Sat2:038.62:477.38:54-0.99:01-0.15:188:20New Moon15Sat
16Sun2:578.73:397.69:45-1.19:57-0.35:198:20Waxing Crescent16Sun
17Mon3:518.64:317.710:36-1.110:52-0.35:208:19Waxing Crescent17Mon
18Tue4:468.35:247.811:27-0.911:50-0.35:218:18Waxing Crescent18Tue
19Wed5:428.06:187.812:19-0.65:228:17First Quarter19Wed
20Thu6:427.57:137.712:50-0.11:13-0.25:238:17First Quarter20Thu
21Fri7:437.08:107.61:510.02:090.25:248:16First Quarter21Fri
22Sat8:466.69:087.42:550.23:070.65:258:15First Quarter22Sat
23Sun9:516.310:087.34:000.44:081.05:268:14Waxing Gibbous23Sun
24Mon10:546.211:077.35:050.45:091.15:278:13Waxing Gibbous24Mon
25Tue11:526.26:040.46:061.15:278:12Waxing Gibbous25Tue
26Wed12:007.312:446.26:560.36:561.15:288:11Waxing Gibbous26Wed
27Thu12:497.31:306.37:420.37:411.05:308:10Full Moon27Thu
28Fri1:337.32:126.48:240.28:221.05:318:09Full Moon28Fri
29Sat2:147.42:516.59:020.29:010.95:328:08Full Moon29Sat
30Sun2:527.33:266.69:360.29:380.95:338:07Full Moon30Sun
31Mon3:287.34:006.610:080.210:140.85:348:06Waning Gibbous31Mon
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 10:38 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 spring phase. Tonight's moon is 98% 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 near their weekly maximum.

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 Full Moon (98% illuminated). This places Squamscott River, Great Bay, NH in a spring tide cycle, so tidal ranges are near their weekly maximum 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