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

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 5m at 8:56 am (-1.0 ft)
Next high tide : 2:49 pm (7.3 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:18 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Dec 2069

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:487.83:008.69:06-0.59:46-1.26:554:09Waning Gibbous1Sun
2Mon3:427.63:558.210:01-0.210:40-0.86:574:09Waning Gibbous2Mon
3Tue4:387.44:527.710:580.111:37-0.46:584:09Third Quarter3Tue
4Wed5:367.15:537.311:590.46:594:09Third Quarter4Wed
5Thu6:357.06:546.912:340.01:020.67:004:08Third Quarter5Thu
6Fri7:326.97:556.61:320.42:060.87:014:08Third Quarter6Fri
7Sat8:286.88:566.42:290.63:090.87:014:08Waning Crescent7Sat
8Sun9:236.99:546.33:260.84:080.77:024:08Waning Crescent8Sun
9Mon10:137.010:456.34:190.95:000.57:034:08Waning Crescent9Mon
10Tue10:587.111:326.45:060.95:460.37:044:08Waning Crescent10Tue
11Wed11:407.25:490.96:270.27:054:08New Moon11Wed
12Thu12:156.412:197.36:280.87:050.17:064:09New Moon12Thu
13Fri12:556.512:577.47:050.87:420.07:074:09New Moon13Fri
14Sat1:336.51:337.47:410.78:170.07:074:09New Moon14Sat
15Sun2:106.62:097.48:180.78:51-0.17:084:09New Moon15Sun
16Mon2:466.62:457.48:550.79:27-0.17:094:09Waxing Crescent16Mon
17Tue3:226.63:237.39:350.710:06-0.17:094:10Waxing Crescent17Tue
18Wed4:006.74:047.210:170.610:470.07:104:10Waxing Crescent18Wed
19Thu4:426.74:517.111:050.611:330.07:104:11First Quarter19Thu
20Fri5:296.95:447.011:570.57:114:11First Quarter20Fri
21Sat6:207.06:416.812:220.112:530.47:114:12First Quarter21Sat
22Sun7:157.27:436.81:160.11:540.37:124:12First Quarter22Sun
23Mon8:137.58:486.82:130.12:570.07:124:13Waxing Gibbous23Mon
24Tue9:147.89:536.93:140.14:02-0.37:134:13Waxing Gibbous24Tue
25Wed10:148.110:557.24:15-0.15:03-0.77:134:14Waxing Gibbous25Wed
26Thu11:118.411:527.45:14-0.26:00-1.17:134:15Full Moon26Thu
27Fri12:068.66:10-0.46:54-1.37:144:15Full Moon27Fri
28Sat12:477.51:008.77:04-0.57:47-1.47:144:16Full Moon28Sat
29Sun1:407.61:538.67:58-0.68:38-1.37:144:17Waning Gibbous29Sun
30Mon2:327.62:448.48:50-0.59:27-1.17:144:18Waning Gibbous30Mon
31Tue3:227.53:358.09:42-0.310:18-0.87:144:18Waning Gibbous31Tue
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 11:52 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 2% 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 (2% 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