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

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : 9:49 am (-1.0 ft)
Next high tide (tomorrow) : in 4h 43m at 3:00 am (8.6 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:18 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jan 1999

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:108.56:14-0.46:58-1.27:154:19Full Moon1Fri
2Sat12:517.51:028.57:08-0.47:50-1.37:154:20Full Moon2Sat
3Sun1:447.51:548.58:00-0.48:40-1.27:154:21Full Moon3Sun
4Mon2:347.42:448.28:50-0.29:29-1.07:154:21Waning Gibbous4Mon
5Tue3:237.33:337.99:410.010:17-0.67:154:22Waning Gibbous5Tue
6Wed4:137.14:237.510:320.211:06-0.37:154:23Waning Gibbous6Wed
7Thu5:036.95:167.011:250.511:560.17:144:24Third Quarter7Thu
8Fri5:556.76:116.612:210.87:144:25Third Quarter8Fri
9Sat6:466.67:076.312:470.51:180.97:144:27Third Quarter9Sat
10Sun7:396.58:056.01:380.82:171.07:144:28Third Quarter10Sun
11Mon8:326.59:045.92:311.03:171.07:134:29Waning Crescent11Mon
12Tue9:256.610:005.93:261.14:140.87:134:30Waning Crescent12Tue
13Wed10:156.710:516.14:191.15:040.67:134:31Waning Crescent13Wed
14Thu11:006.911:376.25:061.05:480.47:124:32Waning Crescent14Thu
15Fri11:427.15:490.96:290.17:124:33Waning Crescent15Fri
16Sat12:196.412:227.36:290.77:07-0.17:114:34New Moon16Sat
17Sun12:596.51:017.57:080.57:45-0.37:114:36New Moon17Sun
18Mon1:386.71:407.77:470.38:22-0.57:104:37New Moon18Mon
19Tue2:166.82:197.88:280.29:01-0.67:104:38Waxing Crescent19Tue
20Wed2:547.03:007.89:100.19:41-0.67:094:39Waxing Crescent20Wed
21Thu3:347.13:447.79:550.010:24-0.67:084:41Waxing Crescent21Thu
22Fri4:187.24:327.510:430.011:11-0.57:074:42Waxing Crescent22Fri
23Sat5:067.35:267.311:370.07:074:43First Quarter23Sat
24Sun5:597.36:257.012:02-0.312:350.07:064:45First Quarter24Sun
25Mon6:577.47:296.812:57-0.11:370.07:054:46First Quarter25Mon
26Tue7:587.48:376.71:570.12:440.07:044:47Waxing Gibbous26Tue
27Wed9:037.59:466.73:010.23:52-0.27:034:48Waxing Gibbous27Wed
28Thu10:067.710:506.84:060.24:57-0.57:024:50Waxing Gibbous28Thu
29Fri11:057.911:477.05:080.15:55-0.77:014:51Waxing Gibbous29Fri
30Sat12:008.16:05-0.16:48-0.97:004:52Full Moon30Sat
31Sun12:407.212:528.26:58-0.27:38-1.06:594:54Full Moon31Sun
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 2% 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 New Moon (2% 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