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

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : 3:44 am (0.8 ft)
Next high tide : in 4h 31m at 8:53 pm (7.0 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 5:24 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Feb 2076

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:317.510:196.53:330.64:26-0.26:584:55Waning Crescent1Sat
2Sun10:337.811:186.84:360.35:26-0.66:574:57Waning Crescent2Sun
3Mon11:318.25:350.06:22-1.06:564:58New Moon3Mon
4Tue12:157.212:278.56:31-0.47:16-1.36:554:59New Moon4Tue
5Wed1:097.51:228.77:27-0.78:08-1.46:535:01New Moon5Wed
6Thu2:017.72:168.78:21-0.88:58-1.46:525:02Waxing Crescent6Thu
7Fri2:527.83:088.59:14-0.89:48-1.26:515:03Waxing Crescent7Fri
8Sat3:427.84:018.110:08-0.710:38-0.96:505:05Waxing Crescent8Sat
9Sun4:337.74:567.611:03-0.411:29-0.46:485:06Waxing Crescent9Sun
10Mon5:277.55:547.012:01-0.16:475:07First Quarter10Mon
11Tue6:227.26:556.512:230.11:020.26:465:09First Quarter11Tue
12Wed7:196.97:586.11:190.62:050.46:445:10First Quarter12Wed
13Thu8:186.79:025.92:191.03:110.66:435:11First Quarter13Thu
14Fri9:196.710:045.93:221.24:140.66:425:13Waxing Gibbous14Fri
15Sat10:166.710:586.04:221.25:090.56:405:14Waxing Gibbous15Sat
16Sun11:066.811:456.25:151.15:570.36:395:15Waxing Gibbous16Sun
17Mon11:527.06:010.96:390.26:375:17Waxing Gibbous17Mon
18Tue12:276.312:337.16:420.87:170.16:365:18Full Moon18Tue
19Wed1:066.51:117.27:200.67:520.06:345:19Full Moon19Wed
20Thu1:416.61:477.37:550.58:24-0.16:335:21Full Moon20Thu
21Fri2:146.72:217.38:300.48:55-0.16:315:22Full Moon21Fri
22Sat2:466.82:547.29:040.39:270.06:305:23Waning Gibbous22Sat
23Sun3:176.93:307.19:410.210:010.16:285:24Waning Gibbous23Sun
24Mon3:507.04:086.910:200.210:380.26:275:26Waning Gibbous24Mon
25Tue4:287.04:526.711:040.211:210.36:255:27Waning Gibbous25Tue
26Wed5:117.15:426.411:530.26:245:28Third Quarter26Wed
27Thu6:017.16:396.212:090.512:480.36:225:30Third Quarter27Thu
28Fri6:587.17:436.11:030.71:490.36:205:31Third Quarter28Fri
29Sat8:027.28:536.22:040.82:570.26:195:32Waning Crescent29Sat
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 12:18 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 transitional phase. Tonight's moon is 62% 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 shifting between spring and neap.

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 First Quarter (62% illuminated). This places Squamscott River, Great Bay, NH in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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