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

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : in 38m at 12:11 am (0.3 ft)
Next high tide (tomorrow) : 6:04 am (7.8 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:04 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Aug 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:307.83:047.19:10-0.39:180.25:348:05Full Moon1Tue
2Wed3:107.93:437.39:49-0.410:020.15:358:04Waning Gibbous2Wed
3Thu3:527.94:247.510:30-0.510:480.05:368:02Waning Gibbous3Thu
4Fri4:377.85:087.611:14-0.511:37-0.15:378:01Waning Gibbous4Fri
5Sat5:267.75:567.712:01-0.45:398:00Third Quarter5Sat
6Sun6:197.46:497.712:30-0.112:52-0.25:407:59Third Quarter6Sun
7Mon7:187.27:467.71:27-0.11:470.05:417:57Third Quarter7Mon
8Tue8:207.08:477.82:280.02:450.25:427:56Third Quarter8Tue
9Wed9:266.89:517.83:330.03:490.35:437:54Waning Crescent9Wed
10Thu10:346.810:557.94:41-0.14:540.35:447:53Waning Crescent10Thu
11Fri11:377.011:558.05:45-0.35:570.25:457:52Waning Crescent11Fri
12Sat12:357.26:43-0.56:540.05:467:50New Moon12Sat
13Sun12:518.21:287.37:37-0.67:48-0.15:477:49New Moon13Sun
14Mon1:438.22:187.48:26-0.78:38-0.15:487:47New Moon14Mon
15Tue2:328.13:047.59:12-0.69:26-0.15:497:46New Moon15Tue
16Wed3:188.03:487.59:56-0.410:110.05:507:44Waxing Crescent16Wed
17Thu4:037.74:307.410:37-0.210:560.25:527:43Waxing Crescent17Thu
18Fri4:467.45:127.211:180.111:410.45:537:41Waxing Crescent18Fri
19Sat5:317.05:557.012:000.45:547:40Waxing Crescent19Sat
20Sun6:186.66:416.912:280.612:440.75:557:38First Quarter20Sun
21Mon7:096.37:296.71:170.81:301.05:567:37First Quarter21Mon
22Tue8:016.18:206.62:091.02:201.25:577:35First Quarter22Tue
23Wed8:575.99:146.63:041.13:121.35:587:33First Quarter23Wed
24Thu9:555.910:106.74:021.14:091.45:597:32Waxing Gibbous24Thu
25Fri10:516.011:036.94:590.95:041.26:007:30Waxing Gibbous25Fri
26Sat11:416.211:517.25:500.75:541.06:017:28Waxing Gibbous26Sat
27Sun12:266.56:350.46:400.76:027:27Waxing Gibbous27Sun
28Mon12:367.51:086.97:160.17:250.36:047:25Full Moon28Mon
29Tue1:197.71:497.27:57-0.28:090.06:057:23Full Moon29Tue
30Wed2:027.92:307.58:38-0.58:53-0.36:067:22Full Moon30Wed
31Thu2:468.13:127.89:20-0.69:39-0.56:077:20Waning Gibbous31Thu
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 3:07 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 transitional phase. Tonight's moon is 27% 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 shifting between spring and neap.

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 Crescent (27% illuminated). This places Squamscott River, Great Bay, NH in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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