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

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : 12:19 am (0.9 ft)
Next high tide : in 4h 45m at 5:58 pm (6.7 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:10 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Sep 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:586.27:156.61:060.91:181.26:097:17Third Quarter1Fri
2Sat7:506.08:066.51:571.02:061.46:107:15Third Quarter2Sat
3Sun8:465.89:006.52:511.12:591.56:117:14Third Quarter3Sun
4Mon9:455.89:576.63:491.13:561.56:127:12Waning Crescent4Mon
5Tue10:425.910:526.94:481.04:531.36:137:10Waning Crescent5Tue
6Wed11:336.211:427.25:410.75:461.06:147:08Waning Crescent6Wed
7Thu12:196.56:280.36:340.76:157:07Waning Crescent7Thu
8Fri12:297.51:036.97:120.07:200.36:167:05New Moon8Fri
9Sat1:157.81:467.37:54-0.48:06-0.16:177:03New Moon9Sat
10Sun2:008.12:297.78:37-0.68:53-0.56:187:01New Moon10Sun
11Mon2:468.23:128.09:21-0.89:41-0.76:206:59Waxing Crescent11Mon
12Tue3:348.23:588.210:06-0.810:31-0.86:216:58Waxing Crescent12Tue
13Wed4:238.04:458.210:53-0.611:23-0.76:226:56Waxing Crescent13Wed
14Thu5:167.85:378.111:43-0.46:236:54Waxing Crescent14Thu
15Fri6:147.46:357.912:19-0.612:380.06:246:52First Quarter15Fri
16Sat7:177.17:377.71:20-0.31:380.36:256:50First Quarter16Sat
17Sun8:236.88:437.52:25-0.12:420.66:266:49First Quarter17Sun
18Mon9:326.79:517.43:330.13:510.76:276:47Waxing Gibbous18Mon
19Tue10:386.710:567.54:420.14:590.76:286:45Waxing Gibbous19Tue
20Wed11:386.911:547.65:450.06:000.56:296:43Waxing Gibbous20Wed
21Thu12:317.06:39-0.16:540.36:306:41Waxing Gibbous21Thu
22Fri12:467.61:177.27:27-0.17:420.26:326:40Full Moon22Fri
23Sat1:337.62:007.38:10-0.18:260.16:336:38Full Moon23Sat
24Sun2:177.62:397.38:500.09:070.16:346:36Full Moon24Sun
25Mon2:577.43:167.39:260.19:450.16:356:34Full Moon25Mon
26Tue3:367.23:507.210:010.410:230.26:366:32Waning Gibbous26Tue
27Wed4:137.04:257.110:350.611:010.46:376:31Waning Gibbous27Wed
28Thu4:526.75:027.011:120.811:410.66:386:29Waning Gibbous28Thu
29Fri5:346.45:426.811:511.16:396:27Waning Gibbous29Fri
30Sat6:206.26:286.612:250.812:361.36:406:25Third Quarter30Sat
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 9:08 pm — 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 transitional phase. Tonight's moon is 72% 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 shifting between spring and neap.

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 Waning Gibbous (72% illuminated). This places Squamscott River, Great Bay, NH in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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