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

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide : 5:23 pm (1.2 ft)
Next high tide : in 5h 17m at 11:06 am (6.2 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 5:05 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jan 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:307.711:136.74:320.45:22-0.37:154:19Waning Crescent1Sat
2Sun11:247.85:290.46:16-0.57:154:20New Moon2Sun
3Mon12:076.812:157.86:210.37:05-0.57:154:21New Moon3Mon
4Tue12:566.81:037.87:100.37:51-0.57:154:22New Moon4Tue
5Wed1:426.81:477.77:550.38:33-0.47:154:22New Moon5Wed
6Thu2:246.82:297.68:380.49:12-0.37:144:23Waxing Crescent6Thu
7Fri3:046.83:097.39:200.59:50-0.17:144:24Waxing Crescent7Fri
8Sat3:436.73:497.010:010.610:270.27:144:26Waxing Crescent8Sat
9Sun4:226.64:316.710:440.711:060.47:144:27Waxing Crescent9Sun
10Mon5:036.65:166.411:290.911:470.77:144:28First Quarter10Mon
11Tue5:466.56:056.112:171.07:134:29First Quarter11Tue
12Wed6:326.46:575.812:310.91:081.17:134:30First Quarter12Wed
13Thu7:206.47:545.71:181.12:031.17:134:31First Quarter13Thu
14Fri8:136.58:535.62:091.33:011.07:124:32Waxing Gibbous14Fri
15Sat9:086.69:525.83:051.34:000.87:124:33Waxing Gibbous15Sat
16Sun10:026.910:456.04:011.14:540.47:114:35Waxing Gibbous16Sun
17Mon10:527.311:336.34:540.85:420.07:114:36Waxing Gibbous17Mon
18Tue11:407.75:440.56:29-0.47:104:37Full Moon18Tue
19Wed12:206.712:288.06:320.17:14-0.87:094:38Full Moon19Wed
20Thu1:067.11:158.37:21-0.27:59-1.17:094:40Full Moon20Thu
21Fri1:527.42:038.48:10-0.58:45-1.27:084:41Waning Gibbous21Fri
22Sat2:377.72:528.49:00-0.79:31-1.27:074:42Waning Gibbous22Sat
23Sun3:247.93:428.19:51-0.810:19-1.07:074:43Waning Gibbous23Sun
24Mon4:147.94:367.810:45-0.711:10-0.77:064:45Waning Gibbous24Mon
25Tue5:077.85:357.311:43-0.57:054:46Third Quarter25Tue
26Wed6:047.76:386.912:04-0.312:45-0.37:044:47Third Quarter26Wed
27Thu7:047.57:456.51:030.11:510.07:034:49Third Quarter27Thu
28Fri8:097.38:556.32:060.43:010.17:024:50Waning Crescent28Fri
29Sat9:157.310:036.33:130.74:100.17:014:51Waning Crescent29Sat
30Sun10:187.311:026.44:200.75:120.07:004:52Waning Crescent30Sun
31Mon11:147.411:556.55:190.66:05-0.26:594:54Waning Crescent31Mon
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 2:14 pm — 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 84% 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 (84% 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