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

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : 3:19 am (0.7 ft)
Next high tide : in 41m at 8:41 pm (7.2 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:04 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Dec 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:447.14:547.711:000.411:44-0.36:554:10First Quarter1Wed
2Thu5:446.95:567.312:020.76:564:09First Quarter2Thu
3Fri6:456.76:596.912:440.01:070.96:574:09First Quarter3Fri
4Sat7:446.68:016.61:440.32:111.06:584:09First Quarter4Sat
5Sun8:416.79:026.52:430.63:150.96:594:09Waxing Gibbous5Sun
6Mon9:356.89:596.43:390.74:140.87:004:08Waxing Gibbous6Mon
7Tue10:236.910:496.44:290.85:050.67:014:08Waxing Gibbous7Tue
8Wed11:067.111:356.55:140.85:500.47:024:08Waxing Gibbous8Wed
9Thu11:457.25:550.86:300.27:034:08Full Moon9Thu
10Fri12:186.512:237.36:320.87:080.17:044:08Full Moon10Fri
11Sat12:586.512:597.37:080.87:440.07:054:08Full Moon11Sat
12Sun1:366.51:347.37:430.88:200.07:054:08Full Moon12Sun
13Mon2:136.52:107.38:190.98:550.07:064:09Full Moon13Mon
14Tue2:506.42:467.38:570.99:330.07:074:09Waning Gibbous14Tue
15Wed3:276.43:257.29:360.910:130.17:084:09Waning Gibbous15Wed
16Thu4:076.44:087.210:190.910:560.17:084:09Waning Gibbous16Thu
17Fri4:526.44:567.111:080.911:440.17:094:10Third Quarter17Fri
18Sat5:416.55:507.012:020.87:104:10Third Quarter18Sat
19Sun6:346.76:496.912:350.11:000.77:104:10Third Quarter19Sun
20Mon7:297.07:516.91:290.12:010.57:114:11Third Quarter20Mon
21Tue8:267.38:566.92:260.13:050.27:114:11Waning Crescent21Tue
22Wed9:257.710:007.13:250.04:09-0.37:124:12Waning Crescent22Wed
23Thu10:218.111:007.24:24-0.15:08-0.77:124:12Waning Crescent23Thu
24Fri11:168.411:567.45:20-0.36:04-1.17:134:13New Moon24Fri
25Sat12:098.66:14-0.46:58-1.37:134:14New Moon25Sat
26Sun12:517.51:028.77:07-0.47:51-1.47:134:14New Moon26Sun
27Mon1:457.51:548.68:00-0.48:42-1.37:144:15New Moon27Mon
28Tue2:377.42:458.48:52-0.39:33-1.17:144:16Waxing Crescent28Tue
29Wed3:287.33:378.19:440.010:24-0.77:144:16Waxing Crescent29Wed
30Thu4:207.14:307.610:370.211:15-0.37:144:17Waxing Crescent30Thu
31Fri5:136.95:257.111:330.57:144:18First Quarter31Fri
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 12:00 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 neap phase. Tonight's moon is 58% 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 minimum.

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 First Quarter (58% illuminated). This places Squamscott River, Great Bay, NH in a neap tide cycle, so tidal ranges are near their weekly minimum 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