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

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : 9:10 am (0.2 ft)
Next high tide (tomorrow) : in 3h 48m at 2:25 am (7.4 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 5:31 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Aug 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:588.02:406.98:48-0.58:530.45:348:05Full Moon1Thu
2Fri2:478.03:267.09:34-0.49:400.45:358:04Full Moon2Fri
3Sat3:337.84:097.010:17-0.210:260.55:368:02Waning Gibbous3Sat
4Sun4:177.54:516.910:580.011:110.65:378:01Waning Gibbous4Sun
5Mon5:007.25:326.911:380.311:570.85:388:00Waning Gibbous5Mon
6Tue5:456.86:146.812:180.65:397:59Waning Gibbous6Tue
7Wed6:326.56:586.712:440.91:000.95:407:57Third Quarter7Wed
8Thu7:226.17:446.61:341.11:441.25:417:56Third Quarter8Thu
9Fri8:155.98:326.52:251.22:311.45:437:55Third Quarter9Fri
10Sat9:115.79:256.53:201.23:231.65:447:53Third Quarter10Sat
11Sun10:115.610:216.64:191.24:191.65:457:52Waning Crescent11Sun
12Mon11:085.711:146.85:171.05:141.55:467:50Waning Crescent12Mon
13Tue11:595.96:090.86:051.35:477:49Waning Crescent13Tue
14Wed12:037.112:466.26:550.46:531.05:487:48New Moon14Wed
15Thu12:497.41:306.57:390.17:380.75:497:46New Moon15Thu
16Fri1:347.72:126.88:21-0.28:240.35:507:45New Moon16Fri
17Sat2:198.02:547.29:02-0.59:100.05:517:43New Moon17Sat
18Sun3:048.13:367.59:44-0.69:58-0.25:527:41Waxing Crescent18Sun
19Mon3:508.14:207.710:27-0.710:47-0.35:537:40Waxing Crescent19Mon
20Tue4:387.95:067.911:12-0.611:38-0.35:557:38Waxing Crescent20Tue
21Wed5:297.75:567.912:01-0.35:567:37First Quarter21Wed
22Thu6:267.36:507.812:34-0.312:530.05:577:35First Quarter22Thu
23Fri7:276.97:497.71:34-0.11:490.35:587:34First Quarter23Fri
24Sat8:326.68:527.62:370.02:500.65:597:32First Quarter24Sat
25Sun9:416.49:587.53:450.13:570.86:007:30Waxing Gibbous25Sun
26Mon10:496.411:047.54:550.25:050.86:017:29Waxing Gibbous26Mon
27Tue11:516.55:590.06:070.76:027:27Waxing Gibbous27Tue
28Wed12:047.612:466.76:55-0.17:020.66:037:25Full Moon28Wed
29Thu12:577.71:356.97:45-0.27:520.46:047:24Full Moon29Thu
30Fri1:467.72:207.08:30-0.28:380.36:057:22Full Moon30Fri
31Sat2:317.73:017.19:11-0.19:210.36:077:20Full Moon31Sat
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 5:47 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 100% 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 Full Moon (100% 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