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

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : 2:16 am (0.6 ft)
Next high tide : in 2h 55m at 7:46 pm (7.2 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:04 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Oct 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:107.42:287.48:390.18:590.06:416:24New Moon1Sat
2Sun2:497.33:047.49:140.39:360.16:426:22New Moon2Sun
3Mon3:277.13:387.39:490.410:120.26:436:20Waxing Crescent3Mon
4Tue4:046.94:127.210:230.610:490.36:456:19Waxing Crescent4Tue
5Wed4:416.74:497.010:590.811:280.56:466:17Waxing Crescent5Wed
6Thu5:226.55:296.911:391.06:476:15Waxing Crescent6Thu
7Fri6:066.26:146.712:110.712:221.26:486:14First Quarter7Fri
8Sat6:556.17:046.612:580.81:111.36:496:12First Quarter8Sat
9Sun7:486.07:586.61:490.92:041.46:506:10First Quarter9Sun
10Mon8:436.18:556.72:430.93:001.36:526:08First Quarter10Mon
11Tue9:396.39:546.93:400.73:591.06:536:07Waxing Gibbous11Tue
12Wed10:346.710:527.34:360.54:580.66:546:05Waxing Gibbous12Wed
13Thu11:257.211:457.65:300.15:520.16:556:03Waxing Gibbous13Thu
14Fri12:137.76:20-0.36:44-0.46:566:02Full Moon14Fri
15Sat12:368.01:008.27:07-0.67:34-0.96:586:00Full Moon15Sat
16Sun1:278.21:488.67:55-0.88:25-1.26:595:58Full Moon16Sun
17Mon2:188.32:368.88:44-0.99:16-1.47:005:57Full Moon17Mon
18Tue3:098.33:268.89:34-0.910:08-1.47:015:55Waning Gibbous18Tue
19Wed4:028.14:188.710:25-0.711:02-1.27:025:54Waning Gibbous19Wed
20Thu4:587.85:148.411:19-0.37:045:52Waning Gibbous20Thu
21Fri5:587.56:148.012:00-0.912:180.07:055:51Third Quarter21Fri
22Sat7:027.27:207.61:02-0.51:220.47:065:49Third Quarter22Sat
23Sun8:077.08:267.32:07-0.12:290.67:075:48Third Quarter23Sun
24Mon9:126.99:337.23:130.13:380.77:095:46Third Quarter24Mon
25Tue10:146.910:367.14:170.24:440.67:105:45Waning Crescent25Tue
26Wed11:107.111:327.15:170.35:430.57:115:43Waning Crescent26Wed
27Thu11:597.26:080.36:330.37:125:42Waning Crescent27Thu
28Fri12:227.112:437.36:530.37:180.17:145:40Waning Crescent28Fri
29Sat1:067.11:227.47:330.37:590.17:155:39New Moon29Sat
30Sun1:477.11:597.48:100.48:370.07:165:38New Moon30Sun
31Mon2:267.02:347.48:450.59:120.07:175:36New Moon31Mon
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 11:01 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 neap phase. Tonight's moon is 48% 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 minimum.

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 (48% illuminated). This places Squamscott River, Great Bay, NH in a neap tide cycle, so tidal ranges are near their weekly minimum 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