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

TIDE TIMES for Friday, July 10, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide : 4:08 pm (0.6 ft)
Next high tide : in 2h 47m at 9:47 am (6.5 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:14 am
Moon phase : Waning Crescent (20% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Oct 2005

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:347.01:016.77:120.57:240.76:416:25New Moon1Sat
2Sun1:147.11:357.07:460.48:010.46:426:23New Moon2Sun
3Mon1:517.12:087.28:180.38:360.26:436:21New Moon3Mon
4Tue2:277.12:407.38:500.49:120.16:446:19New Moon4Tue
5Wed3:037.03:127.49:230.49:490.06:456:18Waxing Crescent5Wed
6Thu3:396.93:467.59:580.510:280.06:476:16Waxing Crescent6Thu
7Fri4:186.84:257.510:370.611:110.06:486:14Waxing Crescent7Fri
8Sat5:026.65:097.411:210.86:496:12Waxing Crescent8Sat
9Sun5:526.46:027.312:000.212:110.96:506:11First Quarter9Sun
10Mon6:516.27:037.212:570.31:081.16:516:09First Quarter10Mon
11Tue7:566.28:107.21:590.42:121.16:526:07First Quarter11Tue
12Wed9:046.39:207.33:050.43:211.06:546:06Waxing Gibbous12Wed
13Thu10:116.610:297.54:130.24:320.76:556:04Waxing Gibbous13Thu
14Fri11:127.011:327.75:160.05:370.26:566:02Waxing Gibbous14Fri
15Sat12:057.56:12-0.36:35-0.26:576:01Waxing Gibbous15Sat
16Sun12:287.912:557.97:02-0.47:28-0.66:585:59Full Moon16Sun
17Mon1:217.91:428.27:49-0.58:19-0.87:005:57Full Moon17Mon
18Tue2:117.92:278.38:35-0.49:08-0.97:015:56Full Moon18Tue
19Wed3:017.73:128.29:21-0.19:55-0.87:025:54Waning Gibbous19Wed
20Thu3:497.43:568.010:050.210:42-0.57:035:53Waning Gibbous20Thu
21Fri4:377.04:427.610:510.611:31-0.17:045:51Waning Gibbous21Fri
22Sat5:276.65:317.211:391.07:065:50Waning Gibbous22Sat
23Sun6:216.26:256.912:240.312:321.37:075:48Third Quarter23Sun
24Mon7:186.07:246.61:200.71:291.67:085:47Third Quarter24Mon
25Tue8:165.98:246.42:180.92:291.77:095:45Third Quarter25Tue
26Wed9:145.99:246.43:171.13:311.77:115:44Third Quarter26Wed
27Thu10:096.110:216.44:141.04:311.57:125:42Waning Crescent27Thu
28Fri10:576.311:126.65:050.95:241.27:135:41Waning Crescent28Fri
29Sat11:406.611:576.75:480.86:090.97:145:39Waning Crescent29Sat
30Sun11:186.911:386.85:260.75:500.56:164:38Waning Crescent30Sun
31Mon11:537.26:020.66:280.26:174:37New 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 12:57 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 20% 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 (20% 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