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

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 2h 15m at 5:03 am (0.0 ft)
Next high tide : 10:53 am (6.5 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:14 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jun 2004

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:207.26:30-0.46:400.05:068:16Full Moon1Tue
2Wed12:338.41:147.37:23-0.87:31-0.15:068:17Full Moon2Wed
3Thu1:248.72:097.48:15-1.18:23-0.15:058:17Full Moon3Thu
4Fri2:168.83:047.49:09-1.29:17-0.15:058:18Full Moon4Fri
5Sat3:108.83:597.410:03-1.210:120.05:058:19Waning Gibbous5Sat
6Sun4:068.64:567.310:58-1.011:090.25:048:20Waning Gibbous6Sun
7Mon5:048.35:557.111:56-0.75:048:20Waning Gibbous7Mon
8Tue6:057.96:567.112:100.412:55-0.45:048:21Third Quarter8Tue
9Wed7:087.57:577.01:150.61:55-0.15:048:21Third Quarter9Wed
10Thu8:127.18:557.02:210.72:540.25:038:22Third Quarter10Thu
11Fri9:156.89:527.13:270.83:520.55:038:23Third Quarter11Fri
12Sat10:186.610:467.24:310.74:480.75:038:23Waning Crescent12Sat
13Sun11:166.511:347.35:300.65:390.95:038:24Waning Crescent13Sun
14Mon12:086.46:220.46:261.05:038:24Waning Crescent14Mon
15Tue12:197.312:566.47:090.37:091.15:038:24Waning Crescent15Tue
16Wed1:007.31:416.37:520.27:491.15:038:25New Moon16Wed
17Thu1:407.32:226.38:320.28:281.25:038:25New Moon17Thu
18Fri2:197.33:026.39:100.29:061.25:038:25New Moon18Fri
19Sat2:577.33:406.39:470.29:431.25:048:26New Moon19Sat
20Sun3:347.24:176.310:230.310:211.35:048:26Waxing Crescent20Sun
21Mon4:117.24:556.311:000.311:001.35:048:26Waxing Crescent21Mon
22Tue4:497.15:346.311:380.411:431.35:048:26Waxing Crescent22Tue
23Wed5:317.06:166.412:180.45:048:26Waxing Crescent23Wed
24Thu6:166.96:596.612:291.21:000.45:058:27First Quarter24Thu
25Fri7:056.87:446.81:191.11:450.45:058:27First Quarter25Fri
26Sat7:586.78:327.12:120.92:330.45:068:27First Quarter26Sat
27Sun8:546.69:237.43:080.73:240.55:068:27Waxing Gibbous27Sun
28Mon9:556.610:187.74:070.44:190.45:068:27Waxing Gibbous28Mon
29Tue10:576.711:138.15:080.05:170.45:078:27Waxing Gibbous29Tue
30Wed11:576.96:06-0.46:130.25:078:26Waxing Gibbous30Wed
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 7:58 am — 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 11% 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 Crescent (11% 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