43.0533’ N, 70.9133’ W

Squamscott River, Great Bay, NH

57°
H 65°
L 48°
NNE
8mph
High tide
12:31 pm

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

TIDE TIMES for Thursday, September 24, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide : 6:51 pm (0.7 ft)
Next high tide : in 2h 14m at 12:31 pm (6.6 ft)
Sunset today : 6:37 pm
Sunrise tomorrow : 6:33 am
Moon phase : Waxing Gibbous (95% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jun 1930

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:508.15:416.911:44-0.611:550.55:078:15Waxing Crescent1Sun
2Mon5:497.96:426.912:41-0.45:068:16First Quarter2Mon
3Tue6:527.67:437.012:580.61:41-0.25:068:17First Quarter3Tue
4Wed7:577.48:447.22:040.62:41-0.15:058:17First Quarter4Wed
5Thu9:037.19:437.33:110.63:400.15:058:18First Quarter5Thu
6Fri10:097.010:407.54:180.44:400.35:048:19Waxing Gibbous6Fri
7Sat11:116.911:337.75:220.25:360.45:048:19Waxing Gibbous7Sat
8Sun12:086.86:190.06:270.55:048:20Waxing Gibbous8Sun
9Mon12:217.81:006.87:10-0.27:150.65:048:21Full Moon9Mon
10Tue1:077.81:496.77:58-0.38:000.75:038:21Full Moon10Tue
11Wed1:517.82:356.78:43-0.28:430.95:038:22Full Moon11Wed
12Thu2:347.73:186.69:26-0.19:251.05:038:22Full Moon12Thu
13Fri3:157.54:006.510:070.010:061.15:038:23Waning Gibbous13Fri
14Sat3:567.44:416.310:470.210:471.25:038:23Waning Gibbous14Sat
15Sun4:367.25:236.311:270.311:301.35:038:24Waning Gibbous15Sun
16Mon5:197.06:066.212:080.55:038:24Waning Gibbous16Mon
17Tue6:046.86:516.212:151.412:510.65:038:25Third Quarter17Tue
18Wed6:516.67:366.31:041.51:330.85:038:25Third Quarter18Wed
19Thu7:416.48:206.41:541.52:170.95:038:25Third Quarter19Thu
20Fri8:326.29:056.62:461.43:021.05:038:26Third Quarter20Fri
21Sat9:266.29:526.93:391.23:501.05:038:26Waning Crescent21Sat
22Sun10:226.210:407.24:340.94:411.05:048:26Waning Crescent22Sun
23Mon11:166.311:287.55:280.55:310.95:048:26Waning Crescent23Mon
24Tue12:096.56:190.16:210.75:048:26Waning Crescent24Tue
25Wed12:167.81:006.77:09-0.27:120.55:058:26New Moon25Wed
26Thu1:068.11:526.88:00-0.58:030.35:058:27New Moon26Thu
27Fri1:588.42:457.08:52-0.88:560.25:058:27New Moon27Fri
28Sat2:518.53:387.29:44-0.99:500.15:068:27Waxing Crescent28Sat
29Sun3:458.54:317.310:36-0.910:460.15:068:27Waxing Crescent29Sun
30Mon4:408.45:277.311:29-0.811:440.25:078:26Waxing Crescent30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8422687)

Common Questions About Squamscott River, Great Bay, NH Tides

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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 95% 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 Gibbous (95% 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