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

TIDE TIMES for Saturday, June 27, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : 7:44 am (0.4 ft)
Next high tide (tomorrow) : in 3h 00m at 12:49 am (7.2 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 5:06 am
Moon phase : Waxing Gibbous (95% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Feb 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:107.012:238.46:26-0.37:12-1.26:574:56Full Moon1Wed
2Thu1:047.41:188.67:21-0.68:02-1.46:564:57Full Moon2Thu
3Fri1:557.72:108.68:15-0.88:51-1.46:554:59Waning Gibbous3Fri
4Sat2:447.93:028.49:08-0.99:39-1.26:545:00Waning Gibbous4Sat
5Sun3:327.93:548.010:01-0.810:27-0.86:535:01Waning Gibbous5Sun
6Mon4:227.84:477.410:55-0.511:16-0.36:525:03Waning Gibbous6Mon
7Tue5:137.65:456.911:52-0.26:505:04Third Quarter7Tue
8Wed6:077.36:456.312:090.212:520.16:495:05Third Quarter8Wed
9Thu7:046.97:486.01:040.71:550.56:485:07Third Quarter9Thu
10Fri8:046.78:545.72:041.13:020.76:465:08Third Quarter10Fri
11Sat9:086.69:575.73:091.34:070.76:455:09Waning Crescent11Sat
12Sun10:086.610:535.84:131.45:050.66:445:11Waning Crescent12Sun
13Mon11:016.811:406.05:081.25:530.46:425:12Waning Crescent13Mon
14Tue11:466.95:551.06:350.36:415:13Waning Crescent14Tue
15Wed12:226.212:287.16:370.87:120.16:405:15New Moon15Wed
16Thu1:006.41:057.27:150.67:460.16:385:16New Moon16Thu
17Fri1:356.61:417.27:500.58:160.06:375:17New Moon17Fri
18Sat2:076.72:147.18:250.48:460.06:355:19New Moon18Sat
19Sun2:376.92:487.08:590.39:170.16:345:20Waxing Crescent19Sun
20Mon3:077.03:226.99:350.29:500.26:325:21Waxing Crescent20Mon
21Tue3:397.04:006.710:130.210:260.36:315:23Waxing Crescent21Tue
22Wed4:157.14:436.510:560.211:080.56:295:24Waxing Crescent22Wed
23Thu4:587.15:326.211:450.311:560.76:285:25First Quarter23Thu
24Fri5:487.06:306.012:400.46:265:26First Quarter24Fri
25Sat6:477.07:355.912:510.91:420.46:245:28First Quarter25Sat
26Sun7:537.08:475.91:530.92:520.36:235:29Waxing Gibbous26Sun
27Mon9:047.29:576.23:030.94:020.16:215:30Waxing Gibbous27Mon
28Tue10:137.610:596.74:130.55:06-0.36:205:32Waxing Gibbous28Tue
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 4:16 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 95% 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 Gibbous (95% 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