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 3h 46m at 6:10 pm (0.3 ft)
Next high tide (tomorrow) : 12:08 am (8.3 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 - Jan 2002

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:177.02:238.38:300.09:12-1.07:154:19Waning Gibbous1Tue
2Wed3:057.13:138.29:20-0.110:01-1.07:154:20Waning Gibbous2Wed
3Thu3:567.24:068.110:14-0.110:53-0.87:154:21Waning Gibbous3Thu
4Fri4:497.25:047.811:110.011:47-0.67:154:22Third Quarter4Fri
5Sat5:477.36:057.412:120.17:154:23Third Quarter5Sat
6Sun6:457.37:107.112:44-0.31:170.17:144:24Third Quarter6Sun
7Mon7:457.38:166.81:42-0.12:230.17:144:25Third Quarter7Mon
8Tue8:467.49:236.62:440.23:310.07:144:26Waning Crescent8Tue
9Wed9:457.510:266.63:460.44:35-0.17:144:27Waning Crescent9Wed
10Thu10:417.611:236.64:450.45:32-0.37:144:28Waning Crescent10Thu
11Fri11:337.65:390.56:24-0.47:134:29New Moon11Fri
12Sat12:156.712:217.76:280.57:11-0.47:134:30New Moon12Sat
13Sun1:026.71:067.67:140.57:55-0.47:134:31New Moon13Sun
14Mon1:466.61:487.67:570.58:36-0.37:124:32New Moon14Mon
15Tue2:276.62:287.48:380.69:14-0.27:124:34Waxing Crescent15Tue
16Wed3:056.53:077.29:170.69:510.07:114:35Waxing Crescent16Wed
17Thu3:436.53:467.09:570.810:280.27:114:36Waxing Crescent17Thu
18Fri4:226.44:276.710:380.911:060.47:104:37Waxing Crescent18Fri
19Sat5:026.35:106.511:221.011:460.67:094:38First Quarter19Sat
20Sun5:446.35:586.212:101.17:094:40First Quarter20Sun
21Mon6:286.36:495.912:290.81:001.17:084:41First Quarter21Mon
22Tue7:156.37:445.81:151.01:541.17:074:42First Quarter22Tue
23Wed8:066.58:445.72:051.12:520.97:074:44First Quarter23Wed
24Thu9:006.69:445.82:591.23:510.77:064:45Waxing Gibbous24Thu
25Fri9:557.010:396.13:561.04:470.37:054:46Waxing Gibbous25Fri
26Sat10:477.311:316.44:500.85:39-0.17:044:47Waxing Gibbous26Sat
27Sun11:387.85:420.46:28-0.57:034:49Full Moon27Sun
28Mon12:206.712:288.16:330.17:17-0.97:024:50Full Moon28Mon
29Tue1:097.11:188.47:23-0.38:05-1.27:014:51Full Moon29Tue
30Wed1:587.42:098.58:14-0.58:53-1.37:004:53Waning Gibbous30Wed
31Thu2:467.63:008.59:06-0.79:41-1.36:594:54Waning 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 9:09 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 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