43.0533’ N, 70.9133’ W

Squamscott River, Great Bay, NH

70°
H -°
L 65°
SW
5mph
Low tide
12:03 am

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

TIDE TIMES for Thursday, October 1, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : in 4h 24m at 12:03 am (-0.3 ft)
Next high tide (tomorrow) : 5:56 am (6.8 ft)
Sunset today : 6:25 pm
Sunrise tomorrow : 6:41 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Mar 1916

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:347.611:176.94:350.45:24-0.46:195:32Waning Crescent1Wed
2Thu11:337.95:370.06:18-0.76:185:33New Moon2Thu
3Fri12:107.312:278.16:33-0.47:07-0.96:165:35New Moon3Fri
4Sat12:597.61:188.17:24-0.77:53-0.96:145:36New Moon4Sat
5Sun1:457.82:068.08:13-0.88:36-0.76:135:37New Moon5Sun
6Mon2:287.92:527.79:00-0.89:18-0.46:115:38Waxing Crescent6Mon
7Tue3:097.83:377.39:45-0.610:000.06:095:39Waxing Crescent7Tue
8Wed3:517.64:236.810:31-0.310:430.46:075:41Waxing Crescent8Wed
9Thu4:357.25:126.411:190.111:280.86:065:42Waxing Crescent9Thu
10Fri5:226.96:056.012:110.56:045:43First Quarter10Fri
11Sat6:156.67:025.712:181.21:070.86:025:44First Quarter11Sat
12Sun7:126.38:035.51:141.52:071.06:015:46First Quarter12Sun
13Mon8:146.29:055.62:141.63:121.15:595:47First Quarter13Mon
14Tue9:176.310:025.73:191.64:111.05:575:48Waxing Gibbous14Tue
15Wed10:126.510:506.04:181.45:010.85:555:49Waxing Gibbous15Wed
16Thu11:006.711:326.45:081.15:420.55:545:50Waxing Gibbous16Thu
17Fri11:436.95:520.76:190.35:525:51Waxing Gibbous17Fri
18Sat12:106.712:237.16:310.46:540.15:505:53Full Moon18Sat
19Sun12:457.11:027.37:100.07:28-0.15:485:54Full Moon19Sun
20Mon1:197.41:407.37:49-0.38:04-0.25:465:55Full Moon20Mon
21Tue1:547.62:207.38:28-0.58:42-0.25:455:56Waning Gibbous21Tue
22Wed2:317.83:017.29:10-0.69:23-0.15:435:57Waning Gibbous22Wed
23Thu3:117.93:467.09:55-0.610:070.15:415:59Waning Gibbous23Thu
24Fri3:567.84:366.810:44-0.510:570.35:396:00Waning Gibbous24Fri
25Sat4:487.65:346.511:40-0.211:530.65:386:01Third Quarter25Sat
26Sun5:487.46:396.312:420.05:366:02Third Quarter26Sun
27Mon6:557.27:496.312:560.81:490.25:346:03Third Quarter27Mon
28Tue8:077.29:006.42:060.83:000.25:326:04Waning Crescent28Tue
29Wed9:197.210:056.83:200.74:080.05:306:06Waning Crescent29Wed
30Thu10:247.411:017.24:290.45:07-0.25:296:07Waning Crescent30Thu
31Fri11:227.611:517.55:290.05:58-0.35:276:08Waning Crescent31Fri
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 transitional phase. Tonight's moon is 71% 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 Waning Gibbous (71% 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