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

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 1h 05m at 9:49 am (-1.0 ft)
Next high tide : 3:43 pm (7.5 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:19 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - May 1998

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:428.06:297.112:30-0.55:377:44First Quarter1Fri
2Sat6:427.57:306.812:480.51:30-0.15:357:45First Quarter2Sat
3Sun7:437.18:316.71:500.82:310.25:347:46First Quarter3Sun
4Mon8:466.89:306.62:541.03:320.55:337:47First Quarter4Mon
5Tue9:486.610:276.73:591.14:310.65:317:48Waxing Gibbous5Tue
6Wed10:476.611:186.85:001.05:250.75:307:50Waxing Gibbous6Wed
7Thu11:396.65:540.86:120.75:297:51Waxing Gibbous7Thu
8Fri12:037.012:266.76:410.66:530.65:277:52Waxing Gibbous8Fri
9Sat12:447.11:096.87:220.47:310.65:267:53Full Moon9Sat
10Sun1:227.31:496.88:000.28:060.65:257:54Full Moon10Sun
11Mon1:577.42:286.88:360.18:410.75:247:55Full Moon11Mon
12Tue2:327.43:056.89:110.09:150.75:237:56Full Moon12Tue
13Wed3:057.43:416.79:460.09:510.75:227:57Waning Gibbous13Wed
14Thu3:407.44:186.710:230.010:290.85:217:58Waning Gibbous14Thu
15Fri4:177.44:576.611:020.011:100.85:207:59Waning Gibbous15Fri
16Sat4:577.45:416.611:450.011:570.95:188:00Waning Gibbous16Sat
17Sun5:447.36:306.612:330.15:188:02Third Quarter17Sun
18Mon6:367.27:236.712:480.91:240.15:178:03Third Quarter18Mon
19Tue7:347.28:206.91:450.82:190.15:168:04Third Quarter19Tue
20Wed8:367.29:187.22:460.63:170.05:158:05Third Quarter20Wed
21Thu9:407.310:187.63:490.44:17-0.15:148:06Waning Crescent21Thu
22Fri10:457.411:158.04:540.05:17-0.25:138:07Waning Crescent22Fri
23Sat11:467.65:55-0.56:13-0.45:128:08Waning Crescent23Sat
24Sun12:098.412:437.86:51-0.97:06-0.55:118:09New Moon24Sun
25Mon1:028.71:397.97:46-1.27:59-0.55:118:09New Moon25Mon
26Tue1:538.82:337.98:39-1.38:51-0.45:108:10New Moon26Tue
27Wed2:458.83:267.89:31-1.39:43-0.35:098:11Waxing Crescent27Wed
28Thu3:368.64:187.610:22-1.110:340.05:098:12Waxing Crescent28Thu
29Fri4:278.35:117.311:14-0.811:270.35:088:13Waxing Crescent29Fri
30Sat5:197.96:067.112:07-0.45:078:14Waxing Crescent30Sat
31Sun6:157.57:016.912:230.61:010.05:078:15First Quarter31Sun
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 12:46 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 7% 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 Waxing Crescent (7% 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