43.0533’ N, 70.9133’ W

Squamscott River, Great Bay, NH

71°
H -°
L 65°
SW
7mph
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 5h 56m 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 - May 1916

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:137.812:457.16:55-0.47:040.34:376:44New Moon1Mon
2Tue12:547.81:307.07:39-0.47:440.54:356:45New Moon2Tue
3Wed1:347.72:126.98:20-0.38:240.74:346:46New Moon3Wed
4Thu2:137.62:536.79:00-0.29:020.94:336:47Waxing Crescent4Thu
5Fri2:517.43:336.59:400.09:421.04:316:48Waxing Crescent5Fri
6Sat3:317.24:156.310:200.310:231.24:306:49Waxing Crescent6Sat
7Sun4:137.05:006.111:030.511:081.44:296:50Waxing Crescent7Sun
8Mon4:596.85:486.011:490.711:581.54:286:52First Quarter8Mon
9Tue5:496.66:386.012:370.84:266:53First Quarter9Tue
10Wed6:416.47:276.112:501.61:250.94:256:54First Quarter10Wed
11Thu7:356.38:176.31:451.52:151.04:246:55First Quarter11Thu
12Fri8:316.39:066.62:411.33:050.94:236:56Waxing Gibbous12Fri
13Sat9:276.49:537.03:371.03:540.84:226:57Waxing Gibbous13Sat
14Sun10:206.610:377.44:300.64:420.64:216:58Waxing Gibbous14Sun
15Mon11:106.811:217.85:200.15:280.44:206:59Waxing Gibbous15Mon
16Tue11:587.06:07-0.36:140.24:197:00Full Moon16Tue
17Wed12:078.212:487.26:55-0.77:020.14:187:01Full Moon17Wed
18Thu12:548.41:387.37:44-0.97:520.04:177:02Full Moon18Thu
19Fri1:448.52:297.38:35-1.08:430.04:167:03Waning Gibbous19Fri
20Sat2:368.53:237.39:27-1.09:370.14:157:04Waning Gibbous20Sat
21Sun3:308.44:197.210:21-0.810:340.24:147:05Waning Gibbous21Sun
22Mon4:288.15:197.111:19-0.611:360.44:137:06Third Quarter22Mon
23Tue5:317.86:217.112:19-0.44:127:07Third Quarter23Tue
24Wed6:367.57:227.212:420.51:19-0.14:117:08Third Quarter24Wed
25Thu7:417.18:227.31:490.62:200.14:117:09Third Quarter25Thu
26Fri8:476.99:207.42:570.53:190.34:107:10Waning Crescent26Fri
27Sat9:506.810:147.54:010.34:160.54:097:11Waning Crescent27Sat
28Sun10:476.711:037.64:590.25:080.64:097:12Waning Crescent28Sun
29Mon11:396.711:487.65:510.05:560.74:087:13Waning Crescent29Mon
30Tue12:276.66:38-0.16:390.84:077:14New Moon30Tue
31Wed12:317.61:126.67:21-0.17:210.94:077:14New Moon31Wed
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