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

TIDE TIMES for Thursday, July 16, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide : 9:49 am (-1.0 ft)
Next high tide : in 2h 49m at 3:00 am (8.6 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:19 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Dec 2070

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:096.812:187.56:270.57:03-0.16:554:09New Moon1Mon
2Tue12:526.812:577.57:070.67:42-0.16:564:09New Moon2Tue
3Wed1:326.71:347.57:450.68:19-0.16:574:09New Moon3Wed
4Thu2:106.72:117.48:210.78:540.06:584:09New Moon4Thu
5Fri2:476.62:467.38:570.89:290.16:594:08Waxing Crescent5Fri
6Sat3:246.53:237.19:340.910:060.27:004:08Waxing Crescent6Sat
7Sun4:026.44:027.010:141.010:450.37:014:08Waxing Crescent7Sun
8Mon4:426.44:456.810:571.111:270.47:024:08Waxing Crescent8Mon
9Tue5:256.45:326.611:441.17:034:08First Quarter9Tue
10Wed6:116.56:236.512:120.512:351.07:044:08First Quarter10Wed
11Thu7:006.67:186.51:000.51:290.97:054:08First Quarter11Thu
12Fri7:516.98:166.51:510.52:270.67:064:08Waxing Gibbous12Fri
13Sat8:457.29:166.72:450.43:260.37:064:09Waxing Gibbous13Sat
14Sun9:407.610:156.93:410.34:25-0.27:074:09Waxing Gibbous14Sun
15Mon10:338.111:117.24:370.05:20-0.77:084:09Waxing Gibbous15Mon
16Tue11:268.55:31-0.36:13-1.17:084:09Full Moon16Tue
17Wed12:057.512:198.86:24-0.57:06-1.47:094:10Full Moon17Wed
18Thu12:597.71:128.97:17-0.77:59-1.67:104:10Full Moon18Thu
19Fri1:537.82:068.98:11-0.88:52-1.57:104:10Waning Gibbous19Fri
20Sat2:467.93:008.79:06-0.79:44-1.47:114:11Waning Gibbous20Sat
21Sun3:417.83:558.310:01-0.510:39-1.17:114:11Waning Gibbous21Sun
22Mon4:377.64:547.911:00-0.211:35-0.77:124:12Third Quarter22Mon
23Tue5:357.55:567.412:020.07:124:12Third Quarter23Tue
24Wed6:357.36:597.012:34-0.31:070.37:134:13Third Quarter24Wed
25Thu7:347.28:036.61:330.12:120.47:134:14Third Quarter25Thu
26Fri8:337.19:076.42:330.43:180.47:134:14Waning Crescent26Fri
27Sat9:317.110:066.43:330.74:190.47:144:15Waning Crescent27Sat
28Sun10:247.110:596.44:290.75:130.27:144:16Waning Crescent28Sun
29Mon11:117.211:476.45:190.86:000.17:144:17Waning Crescent29Mon
30Tue11:557.36:040.76:420.07:144:17New Moon30Tue
31Wed12:306.512:357.36:440.77:22-0.17:144:18New Moon31Wed
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 6:24 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 7% 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 Crescent (7% 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