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

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 5h 33m at 7:04 am (-0.6 ft)
Next high tide : 12:56 pm (6.9 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:16 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Oct 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:536.55:007.111:110.911:440.56:426:23Waxing Crescent1Mon
2Tue5:356.35:437.011:541.06:436:22First Quarter2Tue
3Wed6:236.26:347.012:310.612:431.16:446:20First Quarter3Wed
4Thu7:176.27:317.01:230.61:371.16:456:18First Quarter4Thu
5Fri8:156.38:317.12:190.62:361.06:466:16First Quarter5Fri
6Sat9:166.59:357.33:190.53:390.76:476:15Waxing Gibbous6Sat
7Sun10:166.910:387.54:190.24:430.36:496:13Waxing Gibbous7Sun
8Mon11:137.511:377.95:18-0.15:43-0.26:506:11Waxing Gibbous8Mon
9Tue12:058.06:12-0.56:39-0.76:516:09Full Moon9Tue
10Wed12:328.112:568.47:03-0.77:33-1.16:526:08Full Moon10Wed
11Thu1:268.31:468.77:53-0.98:26-1.46:536:06Full Moon11Thu
12Fri2:198.32:378.88:44-0.99:18-1.46:546:04Full Moon12Fri
13Sat3:128.23:278.89:34-0.710:11-1.36:566:03Waning Gibbous13Sat
14Sun4:057.94:198.510:26-0.411:04-1.06:576:01Waning Gibbous14Sun
15Mon5:007.55:138.111:190.06:585:59Waning Gibbous15Mon
16Tue5:587.16:127.712:01-0.512:160.46:595:58Third Quarter16Tue
17Wed6:596.87:157.31:01-0.11:180.77:005:56Third Quarter17Wed
18Thu8:016.68:187.02:030.32:221.07:025:55Third Quarter18Thu
19Fri9:026.59:216.83:050.53:271.17:035:53Third Quarter19Fri
20Sat10:006.510:206.74:060.74:301.07:045:51Waning Crescent20Sat
21Sun10:536.711:146.75:020.75:270.87:055:50Waning Crescent21Sun
22Mon11:406.95:500.76:150.67:065:48Waning Crescent22Mon
23Tue12:026.812:217.06:330.66:580.47:085:47Waning Crescent23Tue
24Wed12:456.812:597.27:100.67:370.37:095:45New Moon24Wed
25Thu1:256.81:357.37:450.68:130.27:105:44New Moon25Thu
26Fri2:046.82:097.48:190.68:480.17:115:43New Moon26Fri
27Sat2:406.82:437.48:530.79:230.17:135:41New Moon27Sat
28Sun3:166.73:177.49:280.79:590.17:145:40Waxing Crescent28Sun
29Mon3:536.63:537.310:050.810:370.17:155:38Waxing Crescent29Mon
30Tue4:316.54:337.310:450.911:190.27:175:37Waxing Crescent30Tue
31Wed5:136.45:177.211:290.97:185:36Waxing Crescent31Wed
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 10:00 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 1% 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 New Moon (1% 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