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

TIDE TIMES for Monday, August 10, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 2h 02m at 5:53 am (-0.1 ft)
Next high tide : 11:45 am (6.6 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 5:44 am
Moon phase : Waning Crescent (6% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jan 1964

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:167.42:258.58:31-0.39:13-1.27:154:18Waning Gibbous1Wed
2Thu3:087.33:188.29:24-0.110:05-0.97:154:19Waning Gibbous2Thu
3Fri4:007.24:117.810:180.110:57-0.57:154:20Waning Gibbous3Fri
4Sat4:547.05:067.311:140.411:50-0.17:154:21Third Quarter4Sat
5Sun5:486.86:046.912:120.67:154:22Third Quarter5Sun
6Mon6:436.77:026.512:430.31:130.87:154:23Third Quarter6Mon
7Tue7:376.68:026.21:370.62:140.97:154:24Third Quarter7Tue
8Wed8:316.69:026.02:310.93:150.97:144:25Third Quarter8Wed
9Thu9:246.69:596.03:261.04:130.87:144:26Waning Crescent9Thu
10Fri10:136.810:506.04:191.15:040.67:144:27Waning Crescent10Fri
11Sat10:596.911:376.15:061.15:500.47:144:28Waning Crescent11Sat
12Sun11:417.15:491.06:310.27:134:29Waning Crescent12Sun
13Mon12:206.212:217.26:290.97:090.07:134:30New Moon13Mon
14Tue1:006.31:007.37:070.87:46-0.17:134:32New Moon14Tue
15Wed1:386.41:377.47:450.78:22-0.27:124:33New Moon15Wed
16Thu2:156.52:147.58:220.58:58-0.37:124:34New Moon16Thu
17Fri2:516.62:527.59:010.59:35-0.37:114:35Waxing Crescent17Fri
18Sat3:286.73:327.59:430.410:14-0.37:114:36Waxing Crescent18Sat
19Sun4:076.84:167.410:280.310:57-0.37:104:38Waxing Crescent19Sun
20Mon4:516.95:057.211:170.311:44-0.27:094:39First Quarter20Mon
21Tue5:407.16:006.912:120.27:094:40First Quarter21Tue
22Wed6:337.27:006.712:360.01:110.27:084:41First Quarter22Wed
23Thu7:307.38:056.61:310.12:140.17:074:43First Quarter23Thu
24Fri8:317.49:146.62:310.33:21-0.17:064:44Waxing Gibbous24Fri
25Sat9:357.710:216.73:350.34:27-0.47:064:45Waxing Gibbous25Sat
26Sun10:377.911:226.94:380.25:29-0.77:054:47Waxing Gibbous26Sun
27Mon11:348.15:380.06:25-0.97:044:48Full Moon27Mon
28Tue12:187.112:308.36:34-0.27:18-1.17:034:49Full Moon28Tue
29Wed1:117.21:228.37:27-0.38:09-1.17:024:50Full Moon29Wed
30Thu2:027.32:138.28:18-0.38:56-1.07:014:52Waning Gibbous30Thu
31Fri2:497.33:018.09:08-0.29:42-0.77:004:53Waning Gibbous31Fri
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 8:49 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 6% 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 (6% 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