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

TIDE TIMES for Friday, July 10, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide : 4:08 pm (0.6 ft)
Next high tide : in 42m at 9:47 am (6.5 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:14 am
Moon phase : Waning Crescent (20% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Aug 2064

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:327.15:006.811:070.311:250.85:358:04Waning Gibbous1Fri
2Sat5:126.85:386.811:430.65:368:03Waning Gibbous2Sat
3Sun5:546.56:186.712:070.912:210.85:378:01Third Quarter3Sun
4Mon6:406.27:016.712:531.01:031.15:388:00Third Quarter4Mon
5Tue7:305.97:476.61:411.11:471.35:397:59Third Quarter5Tue
6Wed8:235.78:386.62:331.22:361.55:407:58Third Quarter6Wed
7Thu9:215.69:336.73:291.23:301.65:427:56Waning Crescent7Thu
8Fri10:215.610:316.94:301.14:281.55:437:55Waning Crescent8Fri
9Sat11:185.811:267.25:280.85:251.35:447:53Waning Crescent9Sat
10Sun12:106.16:200.56:190.95:457:52Waning Crescent10Sun
11Mon12:177.612:586.57:070.07:090.55:467:51New Moon11Mon
12Tue1:067.91:447.07:53-0.37:590.15:477:49New Moon12Tue
13Wed1:548.22:297.48:38-0.78:49-0.25:487:48New Moon13Wed
14Thu2:438.33:157.89:22-0.89:39-0.55:497:46Waxing Crescent14Thu
15Fri3:318.34:018.010:08-0.910:30-0.65:507:45Waxing Crescent15Fri
16Sat4:218.14:488.210:54-0.811:22-0.65:517:43Waxing Crescent16Sat
17Sun5:147.85:398.111:43-0.55:527:42First Quarter17Sun
18Mon6:117.46:348.012:19-0.512:36-0.15:547:40First Quarter18Mon
19Tue7:137.07:347.71:19-0.21:330.35:557:39First Quarter19Tue
20Wed8:186.68:377.52:230.02:350.75:567:37First Quarter20Wed
21Thu9:266.39:447.43:310.23:410.95:577:35Waxing Gibbous21Thu
22Fri10:346.310:507.44:410.34:501.05:587:34Waxing Gibbous22Fri
23Sat11:366.411:497.45:450.35:530.95:597:32Waxing Gibbous23Sat
24Sun12:306.56:410.26:470.76:007:31Waxing Gibbous24Sun
25Mon12:417.51:186.77:290.17:360.66:017:29Full Moon25Mon
26Tue1:287.52:006.88:120.18:200.56:027:27Full Moon26Tue
27Wed2:117.42:396.98:500.19:000.46:037:26Full Moon27Wed
28Thu2:507.33:147.09:250.29:380.46:047:24Full Moon28Thu
29Fri3:277.23:477.09:570.310:150.56:067:22Waning Gibbous29Fri
30Sat4:036.94:207.010:290.510:510.66:077:20Waning Gibbous30Sat
31Sun4:406.74:546.911:030.811:300.76:087:19Waning Gibbous31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8422687)

Common Questions About Squamscott River, Great Bay, NH Tides

Show All
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 12:57 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 20% 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 Waning Crescent (20% 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