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

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide : 7:09 pm (0.2 ft)
Next high tide : in 1h 00m at 12:56 pm (6.9 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:16 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Oct 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:227.54:367.710:450.111:16-0.26:416:24Waxing Crescent1Sun
2Mon5:107.15:227.411:300.56:426:22Waxing Crescent2Mon
3Tue6:006.76:107.012:050.212:180.96:436:21First Quarter3Tue
4Wed6:536.37:036.812:570.51:091.26:446:19First Quarter4Wed
5Thu7:506.18:006.61:520.82:041.56:466:17First Quarter5Thu
6Fri8:476.08:586.52:501.03:031.66:476:15First Quarter6Fri
7Sat9:456.09:576.53:491.04:031.56:486:14Waxing Gibbous7Sat
8Sun10:406.110:526.74:461.05:001.36:496:12Waxing Gibbous8Sun
9Mon11:286.411:406.95:360.85:501.16:506:10Waxing Gibbous9Mon
10Tue12:116.76:190.66:330.76:516:09Waxing Gibbous10Tue
11Wed12:237.112:497.06:570.47:130.46:536:07Full Moon11Wed
12Thu1:047.31:257.37:330.27:520.16:546:05Full Moon12Thu
13Fri1:447.42:017.68:100.08:32-0.26:556:04Full Moon13Fri
14Sat2:237.52:387.88:47-0.19:12-0.46:566:02Full Moon14Sat
15Sun3:047.53:167.99:26-0.19:55-0.56:576:00Waning Gibbous15Sun
16Mon3:467.43:588.010:080.010:40-0.66:595:59Waning Gibbous16Mon
17Tue4:327.34:438.010:540.111:30-0.57:005:57Waning Gibbous17Tue
18Wed5:237.15:357.811:440.37:015:55Third Quarter18Wed
19Thu6:216.96:347.612:25-0.312:410.57:025:54Third Quarter19Thu
20Fri7:246.77:407.51:26-0.11:430.77:035:52Third Quarter20Fri
21Sat8:316.78:497.42:300.02:500.77:055:51Third Quarter21Sat
22Sun9:386.89:587.43:370.04:010.67:065:49Waning Crescent22Sun
23Mon10:427.111:037.54:440.05:080.37:075:48Waning Crescent23Mon
24Tue11:397.45:44-0.26:090.07:085:46Waning Crescent24Tue
25Wed12:017.712:307.76:37-0.37:02-0.37:105:45New Moon25Wed
26Thu12:547.71:177.97:25-0.37:52-0.57:115:43New Moon26Thu
27Fri1:447.72:018.08:10-0.38:39-0.67:125:42New Moon27Fri
28Sat2:317.62:448.08:53-0.19:23-0.57:135:40New Moon28Sat
29Sun2:167.42:247.88:350.29:06-0.46:154:39Waxing Crescent29Sun
30Mon2:597.13:057.69:160.59:49-0.16:164:38Waxing Crescent30Mon
31Tue3:436.83:467.39:570.810:330.26:174:36Waxing 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 4:02 pm — 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 1% 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 New Moon (1% 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