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

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 5h 35m at 6:05 am (-0.3 ft)
Next high tide : 11:56 am (6.7 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:15 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Apr 2067

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:497.63:177.19:25-0.39:360.16:247:09Full Moon1Fri
2Sat3:257.73:567.010:05-0.410:150.26:237:11Waning Gibbous2Sat
3Sun4:047.84:396.910:48-0.410:580.36:217:12Waning Gibbous3Sun
4Mon4:477.75:276.811:35-0.411:470.46:197:13Waning Gibbous4Mon
5Tue5:377.66:226.612:28-0.26:177:14Third Quarter5Tue
6Wed6:347.57:236.512:420.51:260.06:167:15Third Quarter6Wed
7Thu7:387.38:296.51:430.72:290.16:147:16Third Quarter7Thu
8Fri8:477.29:366.72:490.73:350.16:127:18Third Quarter8Fri
9Sat9:577.310:417.14:000.54:410.06:117:19Waning Crescent9Sat
10Sun11:047.411:387.55:090.25:42-0.26:097:20Waning Crescent10Sun
11Mon12:037.66:10-0.26:36-0.46:077:21Waning Crescent11Mon
12Tue12:307.812:587.77:05-0.67:26-0.46:067:22New Moon12Tue
13Wed1:198.11:497.77:56-0.98:13-0.46:047:23New Moon13Wed
14Thu2:058.22:387.68:45-1.08:58-0.36:027:25New Moon14Thu
15Fri2:498.23:247.49:31-0.99:420.06:017:26Waxing Crescent15Fri
16Sat3:338.04:097.210:16-0.710:250.35:597:27Waxing Crescent16Sat
17Sun4:157.84:556.911:01-0.411:090.65:577:28Waxing Crescent17Sun
18Mon5:007.45:426.511:470.011:560.95:567:29Waxing Crescent18Mon
19Tue5:477.16:336.312:360.45:547:30First Quarter19Tue
20Wed6:396.77:266.112:461.21:280.75:537:32First Quarter20Wed
21Thu7:346.58:216.01:401.42:210.95:517:33First Quarter21Thu
22Fri8:316.39:166.02:381.53:161.05:497:34First Quarter22Fri
23Sat9:306.310:096.23:371.54:111.05:487:35Waxing Gibbous23Sat
24Sun10:266.310:586.54:361.35:021.05:467:36Waxing Gibbous24Sun
25Mon11:186.411:426.85:291.05:470.85:457:37Waxing Gibbous25Mon
26Tue12:056.66:160.76:280.75:437:39Waxing Gibbous26Tue
27Wed12:217.112:486.86:580.37:060.55:427:40Full Moon27Wed
28Thu12:597.41:306.97:380.07:460.45:407:41Full Moon28Thu
29Fri1:377.72:127.08:19-0.38:260.35:397:42Full Moon29Fri
30Sat2:177.92:547.19:01-0.69:090.25:387:43Full Moon30Sat
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 9:00 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 5% 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 Waning Crescent (5% 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