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

TIDE TIMES for Friday, July 10, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : 5:03 am (0.0 ft)
Next high tide : in 5h 30m at 10:07 pm (7.8 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 - Feb 2005

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:316.85:576.312:100.56:584:56Third Quarter1Tue
2Wed6:196.96:536.112:250.61:050.56:574:57Third Quarter2Wed
3Thu7:147.07:566.01:180.72:060.46:564:58Third Quarter3Thu
4Fri8:157.19:066.02:170.83:130.26:545:00Waning Crescent4Fri
5Sat9:227.410:146.23:220.84:21-0.16:535:01Waning Crescent5Sat
6Sun10:277.711:166.64:290.55:23-0.46:525:02Waning Crescent6Sun
7Mon11:288.15:310.26:21-0.86:515:04New Moon7Mon
8Tue12:137.012:268.46:29-0.27:14-1.16:505:05New Moon8Tue
9Wed1:077.31:208.57:24-0.58:05-1.36:485:06New Moon9Wed
10Thu1:587.62:138.58:18-0.78:54-1.26:475:08Waxing Crescent10Thu
11Fri2:477.83:048.39:10-0.89:41-1.06:465:09Waxing Crescent11Fri
12Sat3:347.83:547.810:02-0.610:28-0.66:445:10Waxing Crescent12Sat
13Sun4:227.64:477.310:55-0.411:16-0.26:435:12Waxing Crescent13Sun
14Mon5:127.45:436.811:51-0.16:425:13First Quarter14Mon
15Tue6:047.16:416.312:070.412:490.36:405:14First Quarter15Tue
16Wed6:596.87:435.91:010.91:500.66:395:16First Quarter16Wed
17Thu7:586.68:485.71:591.22:550.86:375:17First Quarter17Thu
18Fri9:016.49:515.63:031.54:010.86:365:18Waxing Gibbous18Fri
19Sat10:016.510:465.84:061.54:580.76:345:20Waxing Gibbous19Sat
20Sun10:546.711:345.95:021.35:470.56:335:21Waxing Gibbous20Sun
21Mon11:406.95:491.16:290.36:315:22Waxing Gibbous21Mon
22Tue12:166.212:227.06:300.97:070.26:305:24Full Moon22Tue
23Wed12:546.41:007.27:080.77:400.06:285:25Full Moon23Wed
24Thu1:296.61:357.27:440.58:110.06:275:26Full Moon24Thu
25Fri2:026.82:107.28:190.38:42-0.16:255:27Full Moon25Fri
26Sat2:326.92:447.28:540.29:130.06:235:29Waning Gibbous26Sat
27Sun3:037.13:197.09:310.19:470.16:225:30Waning Gibbous27Sun
28Mon3:367.23:586.810:100.010:250.26:205:31Waning Gibbous28Mon
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 1:35 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