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

TIDE TIMES for Friday, August 14, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : 10:14 am (-0.6 ft)
Next high tide (tomorrow) : in 4h 07m at 3:36 am (8.1 ft)
Sunset today : 7:47 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waxing Crescent (5% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Oct 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:207.411:437.95:25-0.25:48-0.16:416:25Waning Crescent1Mon
2Tue12:147.86:20-0.46:45-0.56:426:23New Moon2Tue
3Wed12:398.01:048.17:12-0.67:38-0.86:436:21New Moon3Wed
4Thu1:328.11:528.38:00-0.68:29-0.96:446:20New Moon4Thu
5Fri2:228.02:398.38:47-0.59:18-0.96:456:18New Moon5Fri
6Sat3:117.83:248.29:33-0.310:05-0.76:466:16Waxing Crescent6Sat
7Sun3:597.54:107.910:180.110:53-0.46:486:14Waxing Crescent7Sun
8Mon4:467.14:567.611:040.411:410.06:496:13Waxing Crescent8Mon
9Tue5:366.75:457.211:530.86:506:11Waxing Crescent9Tue
10Wed6:296.46:396.912:330.312:451.16:516:09First Quarter10Wed
11Thu7:256.27:366.71:280.71:411.36:526:07First Quarter11Thu
12Fri8:226.18:346.52:250.92:391.56:536:06First Quarter12Fri
13Sat9:186.19:326.53:221.03:391.46:556:04First Quarter13Sat
14Sun10:126.210:286.54:171.04:371.36:566:02Waxing Gibbous14Sun
15Mon11:016.511:186.75:080.95:291.06:576:01Waxing Gibbous15Mon
16Tue11:446.85:520.86:140.76:585:59Waxing Gibbous16Tue
17Wed12:036.812:237.06:310.66:550.46:595:58Waxing Gibbous17Wed
18Thu12:457.01:007.37:080.57:340.17:015:56Full Moon18Thu
19Fri1:257.11:367.67:440.38:12-0.27:025:54Full Moon19Fri
20Sat2:047.12:127.88:220.38:52-0.37:035:53Full Moon20Sat
21Sun2:447.22:517.99:010.29:33-0.57:045:51Waning Gibbous21Sun
22Mon3:257.23:328.09:430.210:17-0.57:065:50Waning Gibbous22Mon
23Tue4:097.14:187.910:280.311:05-0.47:075:48Waning Gibbous23Tue
24Wed4:587.05:087.811:170.411:58-0.37:085:47Waning Gibbous24Wed
25Thu5:526.96:057.612:120.57:095:45Third Quarter25Thu
26Fri6:536.87:097.512:56-0.11:130.67:105:44Third Quarter26Fri
27Sat7:576.88:167.31:570.02:190.67:125:42Third Quarter27Sat
28Sun8:027.08:247.32:000.12:280.56:134:41Waning Crescent28Sun
29Mon9:057.39:317.43:040.03:360.26:144:40Waning Crescent29Mon
30Tue10:037.610:327.54:060.04:39-0.16:164:38Waning Crescent30Tue
31Wed10:567.911:277.55:01-0.15:35-0.56:174:37Waning Crescent31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8422687)

Common Questions About Squamscott River, Great Bay, NH Tides

Show All
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 6:55 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 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 Waxing 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