43.0533’ N, 70.9133’ W

Squamscott River, Great Bay, NH

51°
H 69°
L 53°
WSW
6mph
Low tide
10:12 am

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

TIDE TIMES for Thursday, October 29, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 43m at 10:12 am (0.1 ft)
Next high tide : 4:03 pm (8.3 ft)
Sunset today : 5:39 pm
Sunrise tomorrow : 7:14 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jul 1871

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:507.35:59-0.96:07-0.14:117:30Full Moon1Sat
2Sun12:028.712:487.46:54-1.17:03-0.24:127:30Full Moon2Sun
3Mon12:588.81:447.57:50-1.27:58-0.24:127:30Full Moon3Mon
4Tue1:538.82:397.58:44-1.28:54-0.14:137:30Waning Gibbous4Tue
5Wed2:488.63:337.59:37-1.09:490.04:137:29Waning Gibbous5Wed
6Thu3:438.34:287.410:30-0.810:460.24:147:29Waning Gibbous6Thu
7Fri4:397.95:237.211:24-0.411:450.54:157:29Third Quarter7Fri
8Sat5:377.56:197.112:18-0.14:157:28Third Quarter8Sat
9Sun6:357.07:137.012:460.61:120.34:167:28Third Quarter9Sun
10Mon7:346.68:067.01:460.82:050.74:177:27Third Quarter10Mon
11Tue8:336.38:597.02:470.82:590.94:187:27Waning Crescent11Tue
12Wed9:326.29:517.03:470.83:531.14:187:26Waning Crescent12Wed
13Thu10:266.110:397.04:420.74:441.24:197:26Waning Crescent13Thu
14Fri11:166.211:237.15:310.65:301.24:207:25Waning Crescent14Fri
15Sat12:026.26:150.46:121.24:217:25New Moon15Sat
16Sun12:057.212:456.36:560.36:521.14:227:24New Moon16Sun
17Mon12:467.31:266.47:350.27:311.04:237:23New Moon17Mon
18Tue1:247.42:046.48:120.18:091.04:237:23New Moon18Tue
19Wed2:027.42:416.58:470.18:470.94:247:22Waxing Crescent19Wed
20Thu2:397.43:176.69:230.09:270.84:257:21Waxing Crescent20Thu
21Fri3:177.43:546.710:000.010:090.74:267:20Waxing Crescent21Fri
22Sat3:577.44:346.910:390.010:540.64:277:19Waxing Crescent22Sat
23Sun4:427.35:177.111:220.011:440.54:287:19First Quarter23Sun
24Mon5:317.16:057.212:080.14:297:18First Quarter24Mon
25Tue6:257.06:567.412:380.412:580.24:307:17First Quarter25Tue
26Wed7:246.87:517.61:350.31:520.34:317:16First Quarter26Wed
27Thu8:276.78:517.82:370.12:510.34:327:15Waxing Gibbous27Thu
28Fri9:336.89:528.03:42-0.13:530.34:337:14Waxing Gibbous28Fri
29Sat10:376.910:528.34:45-0.44:540.24:347:13Waxing Gibbous29Sat
30Sun11:377.111:508.55:45-0.65:530.04:357:11Full Moon30Sun
31Mon12:357.36:42-0.96:50-0.14:367:10Full Moon31Mon
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 84% 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 (84% 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