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

TIDE TIMES for Monday, July 6, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : 1:08 am (0.8 ft)
Next high tide : in 38m at 6:40 pm (6.9 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:11 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Oct 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:488.21:197.97:27-0.77:47-0.66:416:24Full Moon1Tue
2Wed1:418.32:088.18:15-0.88:39-0.86:426:23Full Moon2Wed
3Thu2:338.22:558.29:02-0.79:29-0.96:436:21Full Moon3Thu
4Fri3:228.03:408.29:48-0.410:18-0.76:446:19Waning Gibbous4Fri
5Sat4:117.64:257.910:340.011:07-0.46:466:17Waning Gibbous5Sat
6Sun5:017.25:127.611:200.411:58-0.16:476:16Waning Gibbous6Sun
7Mon5:546.86:037.212:100.86:486:14Third Quarter7Mon
8Tue6:506.46:586.912:530.31:041.26:496:12Third Quarter8Tue
9Wed7:486.17:576.61:510.72:021.56:506:10Third Quarter9Wed
10Thu8:485.98:586.52:510.93:031.66:516:09Third Quarter10Thu
11Fri9:476.09:596.53:521.04:051.66:536:07Waning Crescent11Fri
12Sat10:426.110:546.64:500.95:041.46:546:05Waning Crescent12Sat
13Sun11:306.411:426.85:400.85:541.16:556:04Waning Crescent13Sun
14Mon12:126.66:230.66:370.86:566:02Waning Crescent14Mon
15Tue12:257.012:506.97:000.57:160.56:576:00New Moon15Tue
16Wed1:057.11:257.27:340.37:530.36:585:59New Moon16Wed
17Thu1:447.21:587.48:080.38:300.07:005:57New Moon17Thu
18Fri2:217.22:327.68:420.29:07-0.27:015:56New Moon18Fri
19Sat2:597.23:077.79:180.39:47-0.37:025:54Waxing Crescent19Sat
20Sun3:387.13:457.89:570.310:29-0.37:035:52Waxing Crescent20Sun
21Mon4:207.04:277.710:390.411:15-0.27:055:51Waxing Crescent21Mon
22Tue5:076.85:157.611:260.67:065:49Waxing Crescent22Tue
23Wed6:016.66:117.512:07-0.112:190.87:075:48First Quarter23Wed
24Thu7:026.57:147.41:050.11:190.97:085:46First Quarter24Thu
25Fri8:086.48:227.32:080.22:250.97:105:45First Quarter25Fri
26Sat9:156.69:327.33:140.23:350.87:115:43Waxing Gibbous26Sat
27Sun10:206.910:407.54:200.14:440.57:125:42Waxing Gibbous27Sun
28Mon11:197.311:417.65:22-0.15:480.17:135:41Waxing Gibbous28Mon
29Tue12:117.76:17-0.36:44-0.37:155:39Waxing Gibbous29Tue
30Wed12:367.81:008.07:06-0.47:36-0.67:165:38Full Moon30Wed
31Thu1:287.81:468.27:53-0.38:25-0.87:175:36Full Moon31Thu
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 9:54 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 transitional phase. Tonight's moon is 62% 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 shifting between spring and neap.

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 Third Quarter (62% illuminated). This places Squamscott River, Great Bay, NH in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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