43.0533’ N, 70.9133’ W

Squamscott River, Great Bay, NH

68°
H -°
L 67°
SSW
4mph
High tide
1:56 am

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

TIDE TIMES for Friday, August 28, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide : 8:34 am (0.1 ft)
Next high tide : in 22m at 1:56 am (7.4 ft)
Sunset today : 7:25 pm
Sunrise tomorrow : 6:03 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Feb 1991

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:267.72:428.28:49-0.69:20-1.06:584:55Waning Gibbous1Fri
2Sat3:137.73:317.89:39-0.510:05-0.76:574:56Waning Gibbous2Sat
3Sun3:587.64:207.410:29-0.310:50-0.26:564:58Waning Gibbous3Sun
4Mon4:457.45:116.811:200.011:380.36:554:59Third Quarter4Mon
5Tue5:347.16:066.312:150.36:545:00Third Quarter5Tue
6Wed6:256.87:035.912:270.71:110.66:535:02Third Quarter6Wed
7Thu7:206.68:035.71:201.12:120.86:525:03Third Quarter7Thu
8Fri8:186.49:065.62:181.43:160.96:505:04Waning Crescent8Fri
9Sat9:196.410:065.63:201.54:180.96:495:06Waning Crescent9Sat
10Sun10:156.610:575.84:201.45:100.76:485:07Waning Crescent10Sun
11Mon11:046.811:426.05:111.25:550.56:465:08Waning Crescent11Mon
12Tue11:487.05:550.96:340.26:455:10Waning Crescent12Tue
13Wed12:236.312:287.26:350.77:100.06:445:11New Moon13Wed
14Thu1:006.61:067.37:130.47:43-0.16:425:12New Moon14Thu
15Fri1:346.81:427.47:500.28:16-0.36:415:14New Moon15Fri
16Sat2:087.02:187.48:280.08:50-0.36:405:15Waxing Crescent16Sat
17Sun2:417.22:567.49:07-0.19:25-0.36:385:16Waxing Crescent17Sun
18Mon3:167.43:367.29:48-0.210:04-0.26:375:18Waxing Crescent18Mon
19Tue3:557.54:207.010:33-0.210:480.06:355:19Waxing Crescent19Tue
20Wed4:397.55:116.711:23-0.211:370.26:345:20First Quarter20Wed
21Thu5:307.46:096.412:190.06:325:22First Quarter21Thu
22Fri6:297.37:156.212:320.51:210.16:315:23First Quarter22Fri
23Sat7:347.28:276.11:340.72:300.26:295:24Waxing Gibbous23Sat
24Sun8:467.39:396.32:430.73:430.16:275:25Waxing Gibbous24Sun
25Mon9:577.510:446.63:560.64:50-0.26:265:27Waxing Gibbous25Mon
26Tue11:007.711:407.05:020.25:48-0.56:245:28Waxing Gibbous26Tue
27Wed11:578.06:01-0.16:39-0.86:235:29Full Moon27Wed
28Thu12:317.412:498.16:54-0.57:27-0.96:215:30Full Moon28Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8422687)

Common Questions About Squamscott River, Great Bay, NH Tides

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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 100% 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 (100% 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