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

TIDE TIMES for Sunday, June 28, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : 8:25 am (0.3 ft)
Next high tide (tomorrow) : in 3h 08m at 1:31 am (7.2 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 5:06 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Sep 2046

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:478.42:178.08:25-0.98:44-0.86:087:18New Moon1Sat
2Sun2:388.53:048.39:12-1.09:36-1.06:097:16Waxing Crescent2Sun
3Mon3:298.43:528.510:00-0.910:28-1.06:107:15Waxing Crescent3Mon
4Tue4:218.14:428.410:48-0.711:22-0.96:117:13Waxing Crescent4Tue
5Wed5:167.75:358.211:40-0.36:127:11First Quarter5Wed
6Thu6:157.26:337.912:20-0.612:360.26:137:09First Quarter6Thu
7Fri7:186.87:367.51:22-0.21:360.66:157:08First Quarter7Fri
8Sat8:246.58:427.32:280.22:410.96:167:06First Quarter8Sat
9Sun9:326.39:497.13:370.43:491.16:177:04Waxing Gibbous9Sun
10Mon10:376.310:537.14:450.54:561.16:187:02Waxing Gibbous10Mon
11Tue11:346.411:487.25:450.45:550.96:197:00Waxing Gibbous11Tue
12Wed12:236.66:350.46:460.76:206:59Waxing Gibbous12Wed
13Thu12:367.21:066.87:190.37:300.66:216:57Full Moon13Thu
14Fri1:207.21:456.97:570.38:100.56:226:55Full Moon14Fri
15Sat1:597.22:207.08:320.38:470.46:236:53Full Moon15Sat
16Sun2:367.12:537.19:040.49:220.46:246:51Full Moon16Sun
17Mon3:127.03:247.19:350.59:570.46:256:50Waning Gibbous17Mon
18Tue3:476.83:567.110:060.710:310.46:276:48Waning Gibbous18Tue
19Wed4:226.64:297.010:400.911:090.56:286:46Waning Gibbous19Wed
20Thu4:596.35:056.911:161.111:500.76:296:44Waning Gibbous20Thu
21Fri5:416.15:486.811:571.26:306:42Third Quarter21Fri
22Sat6:285.96:386.712:370.812:451.46:316:41Third Quarter22Sat
23Sun7:235.87:346.81:300.91:381.46:326:39Third Quarter23Sun
24Mon8:225.88:356.92:270.92:371.46:336:37Third Quarter24Mon
25Tue9:246.09:397.13:280.83:401.16:346:35Waning Crescent25Tue
26Wed10:256.410:427.44:300.54:440.76:356:33Waning Crescent26Wed
27Thu11:207.011:407.85:270.15:450.26:366:32Waning Crescent27Thu
28Fri12:117.66:19-0.36:40-0.46:386:30New Moon28Fri
29Sat12:348.11:008.17:08-0.67:33-0.96:396:28New Moon29Sat
30Sun1:268.31:488.57:57-0.88:25-1.26:406:26New Moon30Sun
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 4:58 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 spring phase. Tonight's moon is 98% 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 maximum.

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 Full Moon (98% illuminated). This places Squamscott River, Great Bay, NH in a spring tide cycle, so tidal ranges are near their weekly maximum 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