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

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : 12:11 am (0.3 ft)
Next high tide : in 2h 41m at 5:52 pm (7.3 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:04 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jan 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:467.810:257.03:450.04:33-0.47:154:19Waxing Gibbous1Sun
2Mon10:458.111:247.24:46-0.15:32-0.77:154:20Waxing Gibbous2Mon
3Tue11:408.35:43-0.26:27-1.07:154:21Full Moon3Tue
4Wed12:197.312:328.36:37-0.37:19-1.17:154:22Full Moon4Wed
5Thu1:117.41:238.37:28-0.38:08-1.07:144:23Full Moon5Thu
6Fri2:017.42:118.28:18-0.28:55-0.97:144:24Waning Gibbous6Fri
7Sat2:487.32:577.99:05-0.19:39-0.77:144:25Waning Gibbous7Sat
8Sun3:337.23:437.69:520.110:24-0.37:144:26Waning Gibbous8Sun
9Mon4:197.04:307.210:400.411:090.07:144:27Waning Gibbous9Mon
10Tue5:056.85:206.811:300.611:550.37:134:28Third Quarter10Tue
11Wed5:546.66:116.412:220.87:134:29Third Quarter11Wed
12Thu6:436.57:066.112:430.71:161.07:134:30Third Quarter12Thu
13Fri7:346.58:035.91:320.92:131.07:124:31Third Quarter13Fri
14Sat8:276.59:025.82:251.13:121.07:124:33Waning Crescent14Sat
15Sun9:216.69:585.93:201.24:090.87:114:34Waning Crescent15Sun
16Mon10:116.810:496.14:131.15:000.67:114:35Waning Crescent16Mon
17Tue10:587.011:346.35:020.95:440.37:104:36Waning Crescent17Tue
18Wed11:417.35:460.76:250.07:104:37New Moon18Wed
19Thu12:176.512:227.56:280.57:05-0.37:094:39New Moon19Thu
20Fri12:586.71:037.87:090.27:45-0.67:084:40New Moon20Fri
21Sat1:387.01:447.97:520.08:25-0.87:084:41New Moon21Sat
22Sun2:187.22:278.08:35-0.29:07-0.97:074:43Waxing Crescent22Sun
23Mon3:007.43:118.09:21-0.49:50-0.97:064:44Waxing Crescent23Mon
24Tue3:437.53:597.810:09-0.410:37-0.87:054:45Waxing Crescent24Tue
25Wed4:317.64:517.611:02-0.411:27-0.67:054:46First Quarter25Wed
26Thu5:247.65:497.211:59-0.37:044:48First Quarter26Thu
27Fri6:217.56:526.912:22-0.31:00-0.17:034:49First Quarter27Fri
28Sat7:227.57:596.71:200.02:05-0.17:024:50First Quarter28Sat
29Sun8:267.59:096.62:230.23:15-0.17:014:52Waxing Gibbous29Sun
30Mon9:327.510:166.73:310.34:23-0.27:004:53Waxing Gibbous30Mon
31Tue10:347.711:156.94:360.25:23-0.56:594:54Waxing Gibbous31Tue
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 9:01 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 27% 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 Waxing Crescent (27% 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