43.0533’ N, 70.9133’ W

Squamscott River, Great Bay, NH

45°
H 54°
L 39°
NNE
1mph
High tide
3:14 pm

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

TIDE TIMES for Wednesday, October 28, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide : 10:02 pm (-0.9 ft)
Next high tide : in 4h 47m at 3:14 pm (8.4 ft)
Sunset today : 5:41 pm
Sunrise tomorrow : 7:13 am
Moon phase : Waning Gibbous (92% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Feb 1873

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:497.84:088.110:14-0.710:45-0.97:025:00Waxing Crescent1Sat
2Sun4:427.75:047.611:12-0.511:38-0.57:015:01First Quarter2Sun
3Mon5:367.66:057.112:12-0.27:005:03First Quarter3Mon
4Tue6:337.37:086.612:330.01:150.06:595:04First Quarter4Tue
5Wed7:327.18:136.21:310.52:200.36:585:05First Quarter5Wed
6Thu8:336.99:206.02:330.83:280.46:565:07Waxing Gibbous6Thu
7Fri9:356.910:226.03:381.14:310.46:555:08Waxing Gibbous7Fri
8Sat10:336.911:166.14:391.15:270.36:545:09Waxing Gibbous8Sat
9Sun11:247.05:321.06:150.26:535:11Waxing Gibbous9Sun
10Mon12:046.212:107.16:180.96:580.16:515:12Full Moon10Mon
11Tue12:466.312:517.27:000.77:370.06:505:13Full Moon11Tue
12Wed1:256.41:297.27:380.68:110.06:495:15Full Moon12Wed
13Thu2:006.52:047.28:130.68:430.06:475:16Full Moon13Thu
14Fri2:336.62:387.18:480.59:130.16:465:17Waning Gibbous14Fri
15Sat3:046.73:127.09:220.59:440.16:445:19Waning Gibbous15Sat
16Sun3:356.73:466.89:580.510:170.36:435:20Waning Gibbous16Sun
17Mon4:086.74:246.610:370.510:540.56:415:21Waning Gibbous17Mon
18Tue4:446.85:076.311:200.511:350.76:405:23Third Quarter18Tue
19Wed5:266.85:566.112:080.66:385:24Third Quarter19Wed
20Thu6:146.86:525.912:210.81:020.66:375:25Third Quarter20Thu
21Fri7:096.87:555.81:141.02:020.56:355:26Third Quarter21Fri
22Sat8:116.99:045.92:141.03:090.46:345:28Waning Crescent22Sat
23Sun9:197.210:116.23:200.94:160.16:325:29Waning Crescent23Sun
24Mon10:247.611:116.74:260.65:18-0.46:315:30Waning Crescent24Mon
25Tue11:248.05:270.16:13-0.86:295:32New Moon25Tue
26Wed12:067.112:208.46:24-0.47:05-1.16:285:33New Moon26Wed
27Thu12:587.61:148.67:19-0.87:55-1.36:265:34New Moon27Thu
28Fri1:487.92:068.68:12-1.08:43-1.36:245:35New Moon28Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8422687)

Common Questions About Squamscott River, Great Bay, NH Tides

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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 92% 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 Waning Gibbous (92% 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