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

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 5h 47m at 9:39 am (0.2 ft)
Next high tide : 3:31 pm (6.3 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:08 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Aug 2049

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:307.33:596.810:060.210:160.75:358:04Waxing Crescent1Sun
2Mon4:057.24:316.910:380.210:530.65:368:03Waxing Crescent2Mon
3Tue4:417.05:067.011:130.311:330.65:378:02Waxing Crescent3Tue
4Wed5:206.85:437.011:500.45:388:01Waxing Crescent4Wed
5Thu6:036.76:267.112:170.612:320.55:397:59First Quarter5Thu
6Fri6:516.57:147.21:050.61:190.65:407:58First Quarter6Fri
7Sat7:456.48:077.31:580.62:100.75:417:57First Quarter7Sat
8Sun8:456.39:077.52:560.53:070.75:427:55Waxing Gibbous8Sun
9Mon9:506.410:107.73:590.34:100.65:437:54Waxing Gibbous9Mon
10Tue10:556.611:138.05:040.05:140.35:447:53Waxing Gibbous10Tue
11Wed11:567.06:05-0.46:150.05:457:51Waxing Gibbous11Wed
12Thu12:138.312:537.47:01-0.77:13-0.45:477:50Full Moon12Thu
13Fri1:108.61:477.87:54-1.08:09-0.75:487:48Full Moon13Fri
14Sat2:058.72:408.18:46-1.29:04-0.85:497:47Full Moon14Sat
15Sun2:598.73:308.29:36-1.29:58-0.95:507:45Waning Gibbous15Sun
16Mon3:528.44:208.210:26-1.010:52-0.85:517:44Waning Gibbous16Mon
17Tue4:458.15:118.111:15-0.611:47-0.55:527:42Waning Gibbous17Tue
18Wed5:397.66:047.812:07-0.25:537:41Third Quarter18Wed
19Thu6:377.17:007.512:44-0.21:010.35:547:39Third Quarter19Thu
20Fri7:366.77:577.21:440.21:570.75:557:38Third Quarter20Fri
21Sat8:376.38:567.02:450.52:561.05:567:36Third Quarter21Sat
22Sun9:396.19:576.93:490.73:581.25:577:34Waning Crescent22Sun
23Mon10:396.110:546.94:510.74:581.25:597:33Waning Crescent23Mon
24Tue11:336.211:457.05:460.75:531.16:007:31Waning Crescent24Tue
25Wed12:206.46:340.56:401.06:017:30Waning Crescent25Wed
26Thu12:317.11:026.57:160.47:220.86:027:28New Moon26Thu
27Fri1:137.21:416.77:530.38:000.66:037:26New Moon27Fri
28Sat1:517.32:176.98:270.28:370.56:047:24New Moon28Sat
29Sun2:287.32:517.09:000.29:120.46:057:23New Moon29Sun
30Mon3:037.23:237.19:310.29:480.36:067:21Waxing Crescent30Mon
31Tue3:387.23:557.210:040.310:250.36:077:19Waxing Crescent31Tue
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 12:35 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 spring phase. Tonight's moon is 97% 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 (97% 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