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

TIDE TIMES for Saturday, August 8, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : in 6h 44m at 4:47 am (0.1 ft)
Next high tide (tomorrow) : 10:39 am (6.4 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 5:42 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jun 1966

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:048.012:397.26:49-0.46:590.15:068:15Full Moon1Wed
2Thu12:538.21:327.27:40-0.67:470.25:068:16Full Moon2Thu
3Fri1:408.22:237.18:29-0.78:340.45:068:17Full Moon3Fri
4Sat2:268.13:107.09:17-0.69:200.65:058:18Full Moon4Sat
5Sun3:117.93:566.810:02-0.410:050.85:058:18Waning Gibbous5Sun
6Mon3:557.74:426.610:47-0.210:501.05:048:19Waning Gibbous6Mon
7Tue4:407.45:286.411:320.111:371.25:048:20Waning Gibbous7Tue
8Wed5:267.16:166.312:180.45:048:20Waning Gibbous8Wed
9Thu6:156.87:056.212:261.41:050.65:048:21Third Quarter9Thu
10Fri7:066.67:536.31:181.51:520.85:038:22Third Quarter10Fri
11Sat7:596.48:416.32:111.52:380.95:038:22Third Quarter11Sat
12Sun8:526.29:296.53:061.53:251.05:038:23Third Quarter12Sun
13Mon9:476.110:166.74:011.34:141.15:038:23Waning Crescent13Mon
14Tue10:416.111:016.94:551.15:011.15:038:24Waning Crescent14Tue
15Wed11:326.211:447.25:450.85:471.05:038:24Waning Crescent15Wed
16Thu12:206.36:310.56:310.95:038:24Waning Crescent16Thu
17Fri12:267.51:066.57:150.17:150.85:038:25New Moon17Fri
18Sat1:087.71:526.67:59-0.28:000.75:038:25New Moon18Sat
19Sun1:538.02:396.88:45-0.48:470.55:038:25New Moon19Sun
20Mon2:408.13:266.99:32-0.69:360.45:038:26Waxing Crescent20Mon
21Tue3:298.24:167.010:21-0.710:270.45:048:26Waxing Crescent21Tue
22Wed4:208.25:077.111:11-0.711:220.45:048:26Waxing Crescent22Wed
23Thu5:148.06:037.112:04-0.65:048:26Waxing Crescent23Thu
24Fri6:137.87:007.312:200.412:59-0.45:048:26First Quarter24Fri
25Sat7:147.57:587.41:220.41:55-0.25:058:27First Quarter25Sat
26Sun8:177.28:557.52:260.42:520.05:058:27First Quarter26Sun
27Mon9:227.09:547.63:310.33:510.25:068:27Waxing Gibbous27Mon
28Tue10:276.810:517.74:370.24:500.45:068:27Waxing Gibbous28Tue
29Wed11:296.811:447.85:390.05:470.55:068:27Waxing Gibbous29Wed
30Thu12:266.76:36-0.26:400.65:078:27Waxing Gibbous30Thu
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 7:43 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 22% 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 (22% 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