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

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 4h 45m at 6:10 pm (0.3 ft)
Next high tide (tomorrow) : 12:08 am (8.3 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:15 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Feb 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:547.811:356.94:570.35:43-0.56:584:55Waning Crescent1Wed
2Thu11:488.25:52-0.16:33-0.96:574:57New Moon2Thu
3Fri12:267.312:408.56:45-0.67:23-1.36:564:58New Moon3Fri
4Sat1:157.81:328.77:37-0.98:11-1.56:554:59New Moon4Sat
5Sun2:058.12:238.68:29-1.19:00-1.56:535:01Waxing Crescent5Sun
6Mon2:538.23:158.49:22-1.29:49-1.36:525:02Waxing Crescent6Mon
7Tue3:438.24:088.010:15-1.110:39-0.96:515:03Waxing Crescent7Tue
8Wed4:368.15:057.511:12-0.811:33-0.56:505:05First Quarter8Wed
9Thu5:327.86:077.012:13-0.46:485:06First Quarter9Thu
10Fri6:327.57:116.612:310.01:17-0.16:475:07First Quarter10Fri
11Sat7:347.28:196.31:330.52:240.26:465:09First Quarter11Sat
12Sun8:407.09:266.22:390.83:340.36:455:10Waxing Gibbous12Sun
13Mon9:457.010:276.23:470.94:370.36:435:11Waxing Gibbous13Mon
14Tue10:427.011:206.44:480.85:320.26:425:13Waxing Gibbous14Tue
15Wed11:327.15:400.76:180.16:405:14Waxing Gibbous15Wed
16Thu12:066.512:177.26:260.57:000.06:395:15Full Moon16Thu
17Fri12:476.712:577.27:070.47:36-0.16:375:17Full Moon17Fri
18Sat1:246.81:357.27:450.38:090.06:365:18Full Moon18Sat
19Sun1:596.92:107.28:200.28:400.06:355:19Full Moon19Sun
20Mon2:317.02:447.08:540.29:110.16:335:21Waning Gibbous20Mon
21Tue3:027.03:186.99:280.29:430.36:325:22Waning Gibbous21Tue
22Wed3:346.93:536.610:040.310:180.46:305:23Waning Gibbous22Wed
23Thu4:086.94:326.410:430.410:560.66:285:24Waning Gibbous23Thu
24Fri4:466.85:166.211:270.511:390.86:275:26Third Quarter24Fri
25Sat5:316.86:066.012:160.66:255:27Third Quarter25Sat
26Sun6:226.87:025.912:280.91:110.66:245:28Third Quarter26Sun
27Mon7:206.88:055.91:231.02:110.56:225:29Third Quarter27Mon
28Tue8:247.09:116.22:250.93:160.36:205:31Waning Crescent28Tue
29Wed9:297.310:146.63:300.64:190.06:195:32Waning Crescent29Wed
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 9:09 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 5% 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 (5% 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