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

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide : 9:04 pm (-0.1 ft)
Next high tide : in 1m at 2:49 pm (7.3 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:18 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jul 1999

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:307.54:106.610:150.010:180.95:078:26Waning Gibbous1Thu
2Fri4:087.44:486.710:520.011:000.85:088:26Waning Gibbous2Fri
3Sat4:487.45:286.811:320.011:450.85:098:26Waning Gibbous3Sat
4Sun5:327.36:126.912:150.05:098:26Waning Gibbous4Sun
5Mon6:207.27:007.112:340.71:020.05:108:26Third Quarter5Mon
6Tue7:147.17:507.31:270.61:520.05:108:25Third Quarter6Tue
7Wed8:117.08:457.52:240.42:450.15:118:25Third Quarter7Wed
8Thu9:137.09:427.83:240.23:420.15:128:25Waning Crescent8Thu
9Fri10:177.010:428.14:270.04:420.15:138:24Waning Crescent9Fri
10Sat11:217.111:408.45:30-0.45:420.05:138:24Waning Crescent10Sat
11Sun12:217.36:30-0.76:40-0.25:148:23New Moon11Sun
12Mon12:378.61:197.47:27-1.07:36-0.35:158:23New Moon12Mon
13Tue1:328.72:157.68:22-1.18:31-0.35:168:22New Moon13Tue
14Wed2:278.73:097.69:15-1.29:25-0.25:168:22New Moon14Wed
15Thu3:208.64:017.610:06-1.010:19-0.15:178:21Waxing Crescent15Thu
16Fri4:128.34:527.510:57-0.811:120.15:188:20Waxing Crescent16Fri
17Sat5:048.05:447.311:47-0.55:198:20Waxing Crescent17Sat
18Sun5:577.56:367.212:060.312:37-0.15:208:19First Quarter18Sun
19Mon6:527.17:277.01:020.61:280.35:218:18First Quarter19Mon
20Tue7:476.78:196.91:590.82:190.65:228:17First Quarter20Tue
21Wed8:446.49:116.92:560.93:100.95:238:16First Quarter21Wed
22Thu9:416.210:046.83:551.04:041.15:248:16Waxing Gibbous22Thu
23Fri10:396.110:556.94:530.94:581.25:258:15Waxing Gibbous23Fri
24Sat11:326.111:437.05:470.85:481.25:268:14Waxing Gibbous24Sat
25Sun12:216.26:340.66:331.15:268:13Waxing Gibbous25Sun
26Mon12:277.21:056.37:170.47:151.05:278:12Full Moon26Mon
27Tue1:097.31:476.57:570.37:550.95:288:11Full Moon27Tue
28Wed1:497.42:276.68:340.18:350.75:308:10Full Moon28Wed
29Thu2:287.63:056.79:110.09:140.65:318:09Full Moon29Thu
30Fri3:077.63:426.99:48-0.29:550.55:328:08Waning Gibbous30Fri
31Sat3:457.74:197.010:25-0.210:370.45:338:06Waning Gibbous31Sat
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 5:56 pm — 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 2% 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 New Moon (2% 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