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

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 1h 53m at 2:16 am (0.6 ft)
Next high tide : 8:06 am (6.9 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:04 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jan 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:187.69:566.93:170.14:04-0.27:154:19Waning Crescent1Fri
2Sat10:177.810:576.94:180.15:05-0.57:154:20Waning Crescent2Sat
3Sun11:118.011:527.05:150.16:00-0.77:154:21Waning Crescent3Sun
4Mon12:038.16:080.16:52-0.87:154:22New Moon4Mon
5Tue12:447.012:528.16:590.17:41-0.87:144:23New Moon5Tue
6Wed1:347.01:398.07:470.18:27-0.77:144:24New Moon6Wed
7Thu2:207.02:257.88:330.29:11-0.57:144:25Waxing Crescent7Thu
8Fri3:046.83:087.69:170.49:53-0.37:144:26Waxing Crescent8Fri
9Sat3:476.73:527.210:020.610:350.07:144:27Waxing Crescent9Sat
10Sun4:306.64:376.910:470.811:180.37:134:28Waxing Crescent10Sun
11Mon5:156.45:246.611:361.07:134:29First Quarter11Mon
12Tue6:026.36:156.212:020.612:271.17:134:30First Quarter12Tue
13Wed6:506.37:096.012:480.81:201.27:124:32First Quarter13Wed
14Thu7:396.38:055.81:361.02:161.27:124:33First Quarter14Thu
15Fri8:306.49:045.82:261.23:141.17:114:34Waxing Gibbous15Fri
16Sat9:226.510:005.83:201.24:100.87:114:35Waxing Gibbous16Sat
17Sun10:126.810:516.04:131.15:010.57:104:36Waxing Gibbous17Sun
18Mon10:587.111:386.25:021.05:470.27:104:38Waxing Gibbous18Mon
19Tue11:437.45:470.76:30-0.27:094:39Full Moon19Tue
20Wed12:236.512:277.76:320.47:14-0.57:084:40Full Moon20Wed
21Thu1:066.81:118.07:170.17:57-0.87:084:41Full Moon21Thu
22Fri1:507.01:578.28:03-0.18:41-1.07:074:43Full Moon22Fri
23Sat2:347.22:438.28:51-0.39:27-1.07:064:44Waning Gibbous23Sat
24Sun3:207.43:328.19:40-0.410:14-1.07:054:45Waning Gibbous24Sun
25Mon4:087.54:247.910:32-0.411:03-0.87:054:46Waning Gibbous25Mon
26Tue5:007.55:217.511:29-0.311:57-0.57:044:48Third Quarter26Tue
27Wed5:557.56:227.112:29-0.27:034:49Third Quarter27Wed
28Thu6:547.57:276.812:53-0.21:33-0.17:024:50Third Quarter28Thu
29Fri7:557.48:366.61:530.12:410.07:014:52Waning Crescent29Fri
30Sat8:597.49:446.52:580.43:50-0.17:004:53Waning Crescent30Sat
31Sun10:027.410:476.54:030.54:55-0.26:594:54Waning Crescent31Sun
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 5:11 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 58% 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 First Quarter (58% 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