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 5h 02m 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 - Nov 2033

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:326.78:507.12:340.42:580.77:185:35First Quarter1Tue
2Wed9:317.09:547.33:320.24:010.47:205:34Waxing Gibbous2Wed
3Thu10:307.510:567.54:310.05:04-0.17:215:32Waxing Gibbous3Thu
4Fri11:258.011:547.85:29-0.36:02-0.67:225:31Waxing Gibbous4Fri
5Sat12:178.46:23-0.66:57-1.07:245:30Full Moon5Sat
6Sun12:498.012:088.76:14-0.86:50-1.46:254:29Full Moon6Sun
7Mon12:438.112:598.97:06-0.87:43-1.56:264:28Full Moon7Mon
8Tue1:378.11:518.97:57-0.78:35-1.56:274:26Waning Gibbous8Tue
9Wed2:308.02:438.78:49-0.59:28-1.26:294:25Waning Gibbous9Wed
10Thu3:237.73:368.39:42-0.210:22-0.96:304:24Waning Gibbous10Thu
11Fri4:197.44:327.910:370.111:19-0.46:314:23Waning Gibbous11Fri
12Sat5:177.15:317.511:370.56:324:22Third Quarter12Sat
13Sun6:176.96:337.112:180.012:390.86:344:21Third Quarter13Sun
14Mon7:166.77:346.81:170.31:430.96:354:20Third Quarter14Mon
15Tue8:146.78:356.62:160.52:461.06:364:19Third Quarter15Tue
16Wed9:106.79:336.53:140.73:460.96:384:18Waning Crescent16Wed
17Thu10:006.910:256.54:070.74:400.76:394:18Waning Crescent17Thu
18Fri10:457.011:126.64:540.75:260.56:404:17Waning Crescent18Fri
19Sat11:267.211:556.75:360.76:080.36:414:16Waning Crescent19Sat
20Sun12:057.36:140.76:460.16:434:15New Moon20Sun
21Mon12:356.712:417.46:500.77:230.06:444:15New Moon21Mon
22Tue1:146.71:167.47:250.77:580.06:454:14New Moon22Tue
23Wed1:516.71:517.58:010.78:330.06:464:13New Moon23Wed
24Thu2:286.72:277.48:380.79:10-0.16:474:13Waxing Crescent24Thu
25Fri3:056.63:057.49:160.79:500.06:494:12Waxing Crescent25Fri
26Sat3:446.63:467.49:590.710:330.06:504:11Waxing Crescent26Sat
27Sun4:276.64:337.310:460.711:200.06:514:11Waxing Crescent27Sun
28Mon5:166.75:267.211:380.76:524:11First Quarter28Mon
29Tue6:106.86:257.112:110.112:350.66:534:10First Quarter29Tue
30Wed7:067.07:277.01:060.11:360.56:544:10First Quarter30Wed
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