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

TIDE TIMES for Friday, July 10, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 1h 55m at 3:59 am (0.2 ft)
Next high tide : 9:47 am (6.5 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:14 am
Moon phase : Waning Crescent (20% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jan 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:416.91:478.47:530.08:37-1.07:154:19New Moon1Sun
2Mon2:317.12:388.48:44-0.29:27-1.17:154:20Waxing Crescent2Mon
3Tue3:217.33:318.39:37-0.210:17-1.07:154:21Waxing Crescent3Tue
4Wed4:137.34:268.010:33-0.211:09-0.87:154:22Waxing Crescent4Wed
5Thu5:087.45:257.611:33-0.17:154:23First Quarter5Thu
6Fri6:047.46:277.112:04-0.512:350.07:144:24First Quarter6Fri
7Sat7:027.47:326.71:00-0.11:400.17:144:25First Quarter7Sat
8Sun8:017.38:396.41:590.32:470.27:144:26Waxing Gibbous8Sun
9Mon9:027.39:456.33:000.63:540.17:144:27Waxing Gibbous9Mon
10Tue10:017.310:466.34:030.84:550.07:144:28Waxing Gibbous10Tue
11Wed10:557.311:406.35:000.85:49-0.17:134:29Waxing Gibbous11Wed
12Thu11:467.45:520.86:38-0.17:134:30Full Moon12Thu
13Fri12:286.312:327.46:390.87:23-0.17:134:31Full Moon13Fri
14Sat1:136.41:157.47:230.78:04-0.17:124:32Full Moon14Sat
15Sun1:536.41:557.38:030.78:41-0.17:124:34Full Moon15Sun
16Mon2:316.42:327.28:410.79:160.07:114:35Waning Gibbous16Mon
17Tue3:076.43:087.19:190.89:500.27:114:36Waning Gibbous17Tue
18Wed3:426.43:456.99:570.810:240.37:104:37Waning Gibbous18Wed
19Thu4:186.44:246.610:360.911:000.57:094:39Waning Gibbous19Thu
20Fri4:556.45:066.311:191.011:380.77:094:40Third Quarter20Fri
21Sat5:346.45:536.012:061.07:084:41Third Quarter21Sat
22Sun6:176.46:445.812:200.912:561.07:074:42Third Quarter22Sun
23Mon7:056.57:405.71:071.11:501.07:064:44Third Quarter23Mon
24Tue7:576.68:425.61:581.22:500.87:064:45Waning Crescent24Tue
25Wed8:556.89:465.82:561.23:530.67:054:46Waning Crescent25Wed
26Thu9:557.110:456.13:571.04:520.27:044:48Waning Crescent26Thu
27Fri10:537.611:396.44:550.75:47-0.37:034:49Waning Crescent27Fri
28Sat11:478.05:510.36:39-0.77:024:50New Moon28Sat
29Sun12:316.812:418.36:44-0.17:29-1.17:014:51New Moon29Sun
30Mon1:227.21:338.67:37-0.58:18-1.37:004:53New Moon30Mon
31Tue2:117.62:248.68:30-0.79:07-1.36:594:54Waxing Crescent31Tue
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 6:53 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 20% 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 (20% 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