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

TIDE TIMES for Tuesday, July 28, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 4h 58m at 7:53 pm (1.1 ft)
Next high tide (tomorrow) : 1:47 am (7.3 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 5:30 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jul 2084

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:447.31:256.37:380.37:351.15:098:26New Moon1Sat
2Sun1:277.32:086.38:200.28:161.15:098:26New Moon2Sun
3Mon2:087.42:486.48:580.28:541.15:108:26New Moon3Mon
4Tue2:467.43:256.49:340.29:321.05:108:26New Moon4Tue
5Wed3:237.34:016.510:080.210:091.05:118:25Waxing Crescent5Wed
6Thu3:597.34:356.610:410.210:471.05:128:25Waxing Crescent6Thu
7Fri4:357.15:106.711:150.311:271.05:128:25Waxing Crescent7Fri
8Sat5:137.05:476.811:520.35:138:24Waxing Crescent8Sat
9Sun5:556.86:276.912:100.912:310.45:148:24First Quarter9Sun
10Mon6:416.67:107.012:570.81:140.55:158:23First Quarter10Mon
11Tue7:326.57:587.21:470.72:010.65:158:23First Quarter11Tue
12Wed8:286.48:517.42:410.62:520.75:168:22First Quarter12Wed
13Thu9:296.39:497.63:410.43:500.75:178:21Waxing Gibbous13Thu
14Fri10:346.410:507.94:440.24:510.65:188:21Waxing Gibbous14Fri
15Sat11:376.611:518.25:46-0.25:520.45:198:20Waxing Gibbous15Sat
16Sun12:376.96:45-0.56:510.15:208:19Full Moon16Sun
17Mon12:498.51:347.27:42-0.87:49-0.25:218:19Full Moon17Mon
18Tue1:468.72:307.58:36-1.18:46-0.35:218:18Full Moon18Tue
19Wed2:428.83:237.79:29-1.29:42-0.45:228:17Waning Gibbous19Wed
20Thu3:378.64:157.910:20-1.110:37-0.45:238:16Waning Gibbous20Thu
21Fri4:318.35:067.911:10-0.911:33-0.35:248:15Waning Gibbous21Fri
22Sat5:257.95:597.812:01-0.55:258:14Waning Gibbous22Sat
23Sun6:227.46:537.612:31-0.112:53-0.15:268:13Third Quarter23Sun
24Mon7:216.97:477.41:300.21:470.45:278:13Third Quarter24Mon
25Tue8:206.58:437.22:310.42:420.85:288:12Third Quarter25Tue
26Wed9:226.29:417.03:330.63:401.15:298:10Waning Crescent26Wed
27Thu10:246.010:387.04:360.74:401.35:308:09Waning Crescent27Thu
28Fri11:216.011:327.05:350.75:361.35:318:08Waning Crescent28Fri
29Sat12:136.16:270.66:261.25:328:07Waning Crescent29Sat
30Sun12:207.112:596.27:130.57:111.15:338:06New Moon30Sun
31Mon1:047.21:416.37:540.47:521.05:348:05New Moon31Mon
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 10:50 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 99% 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 Full Moon (99% 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