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

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : in 1h 46m at 1:36 am (0.3 ft)
Next high tide (tomorrow) : 7:23 am (6.6 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 5:38 am
Moon phase : Third Quarter (55% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jun 1970

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:036.96:14-0.26:220.45:068:15Waning Crescent1Mon
2Tue12:177.912:576.97:06-0.37:110.55:068:16New Moon2Tue
3Wed1:057.91:476.87:55-0.47:580.65:068:17New Moon3Wed
4Thu1:517.92:356.88:42-0.48:430.85:058:18New Moon4Thu
5Fri2:357.83:196.79:27-0.39:270.95:058:18New Moon5Fri
6Sat3:187.64:026.510:10-0.110:101.05:048:19Waxing Crescent6Sat
7Sun4:007.44:456.410:510.110:521.25:048:20Waxing Crescent7Sun
8Mon4:437.25:286.311:330.311:371.35:048:20Waxing Crescent8Mon
9Tue5:267.06:136.312:150.55:048:21Waxing Crescent9Tue
10Wed6:136.76:596.312:241.412:590.75:038:22First Quarter10Wed
11Thu7:016.57:446.31:141.51:420.85:038:22First Quarter11Thu
12Fri7:526.38:296.52:051.52:261.05:038:23First Quarter12Fri
13Sat8:446.19:156.62:571.43:121.15:038:23First Quarter13Sat
14Sun9:396.010:026.83:511.24:001.15:038:24Waxing Gibbous14Sun
15Mon10:346.010:497.14:461.04:501.15:038:24Waxing Gibbous15Mon
16Tue11:276.211:357.45:380.65:391.05:038:24Waxing Gibbous16Tue
17Wed12:186.36:270.36:270.95:038:25Waxing Gibbous17Wed
18Thu12:227.71:076.57:15-0.17:160.75:038:25Full Moon18Thu
19Fri1:108.01:576.78:04-0.48:060.55:038:25Full Moon19Fri
20Sat2:008.22:476.98:54-0.68:570.35:038:26Full Moon20Sat
21Sun2:518.43:387.09:44-0.89:500.25:048:26Waning Gibbous21Sun
22Mon3:448.44:307.210:34-0.810:440.25:048:26Waning Gibbous22Mon
23Tue4:378.35:247.311:26-0.811:410.25:048:26Waning Gibbous23Tue
24Wed5:348.06:207.412:20-0.65:048:26Third Quarter24Wed
25Thu6:347.77:177.512:420.21:15-0.45:058:27Third Quarter25Thu
26Fri7:367.38:137.61:450.32:11-0.15:058:27Third Quarter26Fri
27Sat8:397.09:117.62:490.33:080.25:068:27Third Quarter27Sat
28Sun9:446.710:097.63:540.34:070.55:068:27Waning Crescent28Sun
29Mon10:486.511:057.64:590.25:060.75:068:27Waning Crescent29Mon
30Tue11:486.511:587.65:580.16:020.95:078:26Waning Crescent30Tue
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 4:29 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 55% 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 Third Quarter (55% 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