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

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 9m at 7:04 am (-0.6 ft)
Next high tide : 12:56 pm (6.9 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:16 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Feb 2069

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:557.49:406.52:510.43:460.06:574:56Waxing Gibbous1Fri
2Sat10:007.410:436.64:000.54:51-0.26:564:58Waxing Gibbous2Sat
3Sun10:597.511:386.85:020.45:48-0.36:554:59Waxing Gibbous3Sun
4Mon11:527.75:570.26:38-0.56:545:00Full Moon4Mon
5Tue12:286.912:407.76:470.17:23-0.56:535:02Full Moon5Tue
6Wed1:137.01:247.77:320.08:04-0.56:515:03Full Moon6Wed
7Thu1:547.12:057.58:150.08:42-0.46:505:04Full Moon7Thu
8Fri2:327.12:447.48:540.09:17-0.26:495:06Waning Gibbous8Fri
9Sat3:087.13:227.19:320.19:520.06:485:07Waning Gibbous9Sat
10Sun3:447.04:006.810:110.310:280.36:465:08Waning Gibbous10Sun
11Mon4:216.84:416.510:520.511:060.66:455:10Waning Gibbous11Mon
12Tue5:016.75:266.211:350.711:480.86:435:11Third Quarter12Tue
13Wed5:446.66:155.912:230.86:425:12Third Quarter13Wed
14Thu6:336.57:095.712:351.11:150.96:415:14Third Quarter14Thu
15Fri7:256.48:085.61:251.22:121.06:395:15Third Quarter15Fri
16Sat8:236.59:095.72:211.33:130.96:385:16Waning Crescent16Sat
17Sun9:226.710:066.03:211.14:120.66:365:18Waning Crescent17Sun
18Mon10:187.110:576.44:190.85:040.26:355:19Waning Crescent18Mon
19Tue11:097.511:446.95:130.45:52-0.36:335:20Waning Crescent19Tue
20Wed11:577.96:02-0.16:37-0.76:325:21New Moon20Wed
21Thu12:297.412:458.26:51-0.57:22-1.06:305:23New Moon21Thu
22Fri1:157.81:338.47:40-0.98:08-1.26:295:24New Moon22Fri
23Sat2:008.12:218.48:29-1.28:54-1.36:275:25Waxing Crescent23Sat
24Sun2:468.33:118.29:19-1.29:41-1.16:265:27Waxing Crescent24Sun
25Mon3:348.34:037.910:11-1.110:31-0.86:245:28Waxing Crescent25Mon
26Tue4:268.25:007.511:06-0.911:25-0.46:225:29First Quarter26Tue
27Wed5:227.96:027.012:06-0.66:215:30First Quarter27Wed
28Thu6:247.67:086.712:240.01:11-0.26:195:32First Quarter28Thu
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 10:00 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 1% 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 New Moon (1% 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