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 20m 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 - Mar 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:247.411:036.84:270.45:11-0.26:185:32Waxing Gibbous1Wed
2Thu11:207.511:557.05:260.36:04-0.36:175:34Waxing Gibbous2Thu
3Fri12:117.66:180.16:51-0.46:155:35Full Moon3Fri
4Sat12:417.112:567.67:05-0.17:33-0.46:135:36Full Moon4Sat
5Sun1:237.21:387.57:47-0.18:11-0.36:125:37Full Moon5Sun
6Mon2:017.32:177.48:27-0.18:47-0.26:105:39Full Moon6Mon
7Tue2:377.22:557.29:05-0.19:210.06:085:40Waning Gibbous7Tue
8Wed3:117.23:326.99:410.19:560.36:075:41Waning Gibbous8Wed
9Thu3:467.04:106.710:190.210:330.56:055:42Waning Gibbous9Thu
10Fri4:246.94:526.411:000.411:130.86:035:43Waning Gibbous10Fri
11Sat5:046.75:386.111:440.611:571.06:015:45Third Quarter11Sat
12Sun6:506.57:285.91:330.87:006:46Third Quarter12Sun
13Mon7:416.48:235.81:461.22:260.96:586:47Third Quarter13Mon
14Tue8:376.49:235.82:391.33:230.96:566:48Third Quarter14Tue
15Wed9:366.510:226.03:381.24:240.76:546:49Waning Crescent15Wed
16Thu10:366.811:166.44:381.05:200.46:536:51Waning Crescent16Thu
17Fri11:317.25:350.66:110.06:516:52Waning Crescent17Fri
18Sat12:056.912:217.66:280.16:59-0.46:496:53Waning Crescent18Sat
19Sun12:527.41:108.07:17-0.47:45-0.86:476:54New Moon19Sun
20Mon1:377.91:598.28:06-0.98:31-1.16:466:55New Moon20Mon
21Tue2:238.32:488.38:55-1.29:17-1.26:446:57New Moon21Tue
22Wed3:108.53:388.39:44-1.410:05-1.16:426:58Waxing Crescent22Wed
23Thu3:578.64:298.110:35-1.410:55-0.96:406:59Waxing Crescent23Thu
24Fri4:488.55:237.711:29-1.211:48-0.56:397:00Waxing Crescent24Fri
25Sat5:428.26:237.312:26-0.86:377:01First Quarter25Sat
26Sun6:427.87:277.012:45-0.11:29-0.56:357:02First Quarter26Sun
27Mon7:477.58:356.71:480.32:35-0.16:337:04First Quarter27Mon
28Tue8:557.29:436.62:560.63:440.16:317:05First Quarter28Tue
29Wed10:047.110:476.74:070.74:520.26:307:06Waxing Gibbous29Wed
30Thu11:087.111:446.95:150.65:520.16:287:07Waxing Gibbous30Thu
31Fri12:047.26:130.46:430.06:267:08Waxing Gibbous31Fri
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