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

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide : 3:09 pm (0.5 ft)
Next high tide : in 2h 30m at 8:44 am (6.5 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:13 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jun 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:037.32:476.38:530.28:501.25:078:15Full Moon1Fri
2Sat2:417.43:266.39:310.29:281.15:068:16Full Moon2Sat
3Sun3:197.44:046.310:090.110:081.15:068:17Waning Gibbous3Sun
4Mon3:587.44:446.310:490.110:511.15:058:18Waning Gibbous4Mon
5Tue4:407.45:276.411:310.111:381.05:058:18Waning Gibbous5Tue
6Wed5:277.46:146.612:170.15:048:19Waning Gibbous6Wed
7Thu6:187.37:056.812:301.01:060.15:048:20Third Quarter7Thu
8Fri7:147.27:577.01:260.81:570.15:048:20Third Quarter8Fri
9Sat8:137.08:517.42:250.62:500.15:048:21Third Quarter9Sat
10Sun9:157.09:477.73:270.43:460.25:048:22Waning Crescent10Sun
11Mon10:206.910:438.04:310.14:440.25:038:22Waning Crescent11Mon
12Tue11:237.011:398.25:33-0.35:420.25:038:23Waning Crescent12Tue
13Wed12:227.16:31-0.66:380.25:038:23New Moon13Wed
14Thu12:338.41:197.17:27-0.87:320.25:038:24New Moon14Thu
15Fri1:278.52:157.18:21-0.98:260.25:038:24New Moon15Fri
16Sat2:218.53:097.19:14-0.99:190.35:038:24New Moon16Sat
17Sun3:148.34:007.010:06-0.710:120.45:038:25Waxing Crescent17Sun
18Mon4:068.14:516.910:56-0.511:040.65:038:25Waxing Crescent18Mon
19Tue4:577.75:436.811:46-0.211:580.85:038:26Waxing Crescent19Tue
20Wed5:497.36:346.712:360.15:048:26First Quarter20Wed
21Thu6:436.97:256.712:541.01:250.55:048:26First Quarter21Thu
22Fri7:376.68:146.71:501.12:130.85:048:26First Quarter22Fri
23Sat8:326.29:036.72:461.23:011.05:048:26First Quarter23Sat
24Sun9:286.09:526.73:441.23:511.35:058:27Waxing Gibbous24Sun
25Mon10:255.910:416.84:411.14:421.45:058:27Waxing Gibbous25Mon
26Tue11:205.911:286.95:341.05:311.45:058:27Waxing Gibbous26Tue
27Wed12:095.96:220.86:171.45:068:27Waxing Gibbous27Wed
28Thu12:127.012:566.07:060.67:001.35:068:27Waxing Gibbous28Thu
29Fri12:547.21:396.17:480.47:411.25:078:27Full Moon29Fri
30Sat1:367.42:216.28:280.28:231.15:078:27Full Moon30Sat
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 11:56 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 transitional phase. Tonight's moon is 30% 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 shifting between spring and neap.

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 (30% illuminated). This places Squamscott River, Great Bay, NH in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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