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

TIDE TIMES for Sunday, July 26, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 28m at 6:29 pm (1.4 ft)
Next high tide (tomorrow) : 12:23 am (7.0 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 5:28 am
Moon phase : Waxing Gibbous (92% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - May 2083

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:418.31:177.67:25-0.97:37-0.45:367:44Full Moon1Sat
2Sun1:298.62:097.78:16-1.28:27-0.45:357:46Full Moon2Sun
3Mon2:198.83:027.79:08-1.49:18-0.45:337:47Full Moon3Mon
4Tue3:118.83:557.510:00-1.310:11-0.25:327:48Waning Gibbous4Tue
5Wed4:048.64:517.310:55-1.111:060.15:317:49Waning Gibbous5Wed
6Thu5:008.35:517.111:52-0.75:307:50Waning Gibbous6Thu
7Fri6:017.96:546.912:060.412:53-0.45:287:51Third Quarter7Fri
8Sat7:067.57:586.71:100.71:560.05:277:52Third Quarter8Sat
9Sun8:127.19:006.72:180.92:590.35:267:53Third Quarter9Sun
10Mon9:186.810:006.83:260.94:000.55:257:55Third Quarter10Mon
11Tue10:226.710:547.04:330.84:580.65:247:56Waning Crescent11Tue
12Wed11:206.611:437.15:330.65:490.75:227:57Waning Crescent12Wed
13Thu12:116.66:240.46:340.85:217:58Waning Crescent13Thu
14Fri12:267.312:576.67:100.37:150.95:207:59Waning Crescent14Fri
15Sat1:057.31:406.57:520.27:530.95:198:00New Moon15Sat
16Sun1:437.42:206.58:300.18:291.05:188:01New Moon16Sun
17Mon2:197.32:596.59:070.19:051.15:178:02New Moon17Mon
18Tue2:557.33:366.49:430.29:411.15:168:03New Moon18Tue
19Wed3:307.24:136.310:180.210:171.25:158:04Waxing Crescent19Wed
20Thu4:077.24:516.210:560.310:561.35:148:05Waxing Crescent20Thu
21Fri4:457.15:316.211:350.411:391.35:148:06Waxing Crescent21Fri
22Sat5:287.06:156.212:180.55:138:07Waxing Crescent22Sat
23Sun6:146.97:016.312:261.31:030.55:128:08First Quarter23Sun
24Mon7:066.87:506.51:171.21:510.55:118:09First Quarter24Mon
25Tue8:006.88:406.82:121.12:400.55:118:10First Quarter25Tue
26Wed8:586.89:327.23:100.83:330.45:108:11Waxing Gibbous26Wed
27Thu9:596.810:267.64:100.54:280.35:098:12Waxing Gibbous27Thu
28Fri11:007.011:208.15:110.05:240.25:098:13Waxing Gibbous28Fri
29Sat11:587.16:08-0.56:180.05:088:14Waxing Gibbous29Sat
30Sun12:128.412:557.37:03-0.97:12-0.15:078:14Full Moon30Sun
31Mon1:068.71:517.47:58-1.18:06-0.25:078:15Full 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 9:26 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 92% 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 Waxing Gibbous (92% 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