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

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 4h 30m at 7:00 am (0.4 ft)
Next high tide : 12:48 pm (6.1 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 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:356.72:397.48:490.39:17-0.36:584:55Waxing Crescent1Mon
2Tue3:086.93:177.39:280.29:52-0.26:574:56Waxing Crescent2Tue
3Wed3:437.03:577.210:100.110:31-0.16:564:58Waxing Crescent3Wed
4Thu4:227.24:436.910:560.111:140.06:554:59Waxing Crescent4Thu
5Fri5:077.25:356.611:470.16:545:00First Quarter5Fri
6Sat5:577.36:336.312:030.312:440.16:535:02First Quarter6Sat
7Sun6:547.27:386.112:570.51:460.26:515:03First Quarter7Sun
8Mon7:587.28:506.11:580.72:560.26:505:04Waxing Gibbous8Mon
9Tue9:087.310:026.23:060.84:080.06:495:06Waxing Gibbous9Tue
10Wed10:177.611:066.54:160.65:13-0.36:475:07Waxing Gibbous10Wed
11Thu11:197.95:210.36:11-0.66:465:08Full Moon11Thu
12Fri12:036.812:168.16:190.07:04-0.96:455:10Full Moon12Fri
13Sat12:567.21:098.27:13-0.37:52-1.06:435:11Full Moon13Sat
14Sun1:447.41:598.18:05-0.48:38-0.96:425:12Full Moon14Sun
15Mon2:307.52:467.98:53-0.59:21-0.76:415:14Waning Gibbous15Mon
16Tue3:137.53:327.59:40-0.410:03-0.36:395:15Waning Gibbous16Tue
17Wed3:557.44:187.110:28-0.210:450.16:385:16Waning Gibbous17Wed
18Thu4:387.25:076.611:160.111:290.66:365:18Waning Gibbous18Thu
19Fri5:246.95:596.112:070.56:355:19Third Quarter19Fri
20Sat6:136.66:555.712:171.01:010.86:335:20Third Quarter20Sat
21Sun7:076.47:555.51:081.42:011.06:325:22Third Quarter21Sun
22Mon8:066.28:595.42:061.63:051.16:305:23Third Quarter22Mon
23Tue9:086.39:595.53:091.74:091.06:295:24Waning Crescent23Tue
24Wed10:066.410:515.74:111.65:030.86:275:25Waning Crescent24Wed
25Thu10:576.711:366.05:031.35:480.56:265:27Waning Crescent25Thu
26Fri11:417.05:481.06:270.36:245:28Waning Crescent26Fri
27Sat12:166.312:227.26:290.77:020.06:225:29New Moon27Sat
28Sun12:536.61:007.47:080.47:36-0.26:215:31New Moon28Sun
29Mon1:276.91:387.57:460.18:10-0.36:195:32New Moon29Mon
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 9:54 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