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

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 5h 01m at 11:54 am (-0.7 ft)
Next high tide : 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 - Jun 2033

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:407.95:237.111:26-0.411:390.65:068:16Waxing Crescent1Wed
2Thu5:307.56:146.912:16-0.15:068:17Waxing Crescent2Thu
3Fri6:227.17:066.812:320.81:060.25:058:18First Quarter3Fri
4Sat7:166.87:576.71:271.01:560.55:058:18First Quarter4Sat
5Sun8:116.58:486.72:231.22:460.85:058:19First Quarter5Sun
6Mon9:066.39:396.73:201.23:381.05:048:20First Quarter6Mon
7Tue10:036.210:296.84:181.14:291.05:048:20Waxing Gibbous7Tue
8Wed10:576.211:167.05:121.05:181.15:048:21Waxing Gibbous8Wed
9Thu11:476.311:597.26:010.86:031.05:048:21Waxing Gibbous9Thu
10Fri12:336.46:450.56:450.95:038:22Waxing Gibbous10Fri
11Sat12:407.41:166.57:250.37:260.85:038:23Full Moon11Sat
12Sun1:207.51:586.68:050.08:060.75:038:23Full Moon12Sun
13Mon2:007.72:396.88:45-0.28:480.65:038:24Full Moon13Mon
14Tue2:407.83:206.99:25-0.39:310.55:038:24Full Moon14Tue
15Wed3:227.94:027.010:07-0.510:160.45:038:24Waning Gibbous15Wed
16Thu4:068.04:477.210:51-0.511:040.35:038:25Waning Gibbous16Thu
17Fri4:537.95:357.311:38-0.511:560.35:038:25Waning Gibbous17Fri
18Sat5:447.86:277.412:28-0.55:038:25Third Quarter18Sat
19Sun6:417.67:227.512:520.31:21-0.35:048:26Third Quarter19Sun
20Mon7:417.48:197.61:510.22:17-0.25:048:26Third Quarter20Mon
21Tue8:447.29:187.82:540.23:150.05:048:26Third Quarter21Tue
22Wed9:507.110:197.93:590.04:160.15:048:26Waning Crescent22Wed
23Thu10:557.111:178.15:04-0.25:170.15:058:27Waning Crescent23Thu
24Fri11:567.16:05-0.46:150.15:058:27Waning Crescent24Fri
25Sat12:138.212:537.27:02-0.67:100.15:058:27New Moon25Sat
26Sun1:068.31:477.27:54-0.78:020.15:068:27New Moon26Sun
27Mon1:578.32:377.38:45-0.78:520.25:068:27New Moon27Mon
28Tue2:458.23:257.29:32-0.69:400.35:068:27New Moon28Tue
29Wed3:328.04:117.110:17-0.510:260.45:078:27Waxing Crescent29Wed
30Thu4:177.74:557.011:00-0.211:120.65:078:27Waxing Crescent30Thu
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 2:53 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