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

TIDE TIMES for Thursday, August 6, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide : 1:48 pm (0.5 ft)
Next high tide : in 3h 13m at 7:23 am (6.6 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:40 am
Moon phase : Third Quarter (44% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jan 1970

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:526.57:156.012:530.81:281.07:154:19Third Quarter1Thu
2Fri7:406.68:135.91:411.02:240.97:154:20Third Quarter2Fri
3Sat8:336.99:156.02:341.03:240.67:154:21Waning Crescent3Sat
4Sun9:307.210:166.23:310.94:240.27:154:22Waning Crescent4Sun
5Mon10:267.611:126.44:290.75:21-0.27:154:22Waning Crescent5Mon
6Tue11:208.05:250.46:15-0.67:154:23New Moon6Tue
7Wed12:076.712:158.36:190.17:07-1.07:144:25New Moon7Wed
8Thu1:007.01:098.67:13-0.28:00-1.27:144:26New Moon8Thu
9Fri1:537.32:038.78:07-0.48:51-1.37:144:27Waxing Crescent9Fri
10Sat2:447.52:568.59:02-0.59:41-1.27:144:28Waxing Crescent10Sat
11Sun3:367.63:508.29:57-0.510:32-1.07:134:29Waxing Crescent11Sun
12Mon4:297.64:477.810:54-0.311:25-0.67:134:30Waxing Crescent12Mon
13Tue5:247.55:477.311:55-0.17:134:31First Quarter13Tue
14Wed6:207.46:496.812:20-0.212:570.17:124:32First Quarter14Wed
15Thu7:187.27:536.41:160.32:020.27:124:33First Quarter15Thu
16Fri8:177.18:596.12:150.73:080.37:114:35Waxing Gibbous16Fri
17Sat9:177.010:036.03:180.94:130.37:114:36Waxing Gibbous17Sat
18Sun10:157.011:006.04:191.15:100.37:104:37Waxing Gibbous18Sun
19Mon11:077.011:496.15:141.16:010.27:104:38Waxing Gibbous19Mon
20Tue11:547.16:021.06:460.17:094:40Full Moon20Tue
21Wed12:346.212:377.26:450.97:270.07:084:41Full Moon21Wed
22Thu1:156.31:167.27:250.88:030.07:084:42Full Moon22Thu
23Fri1:526.41:537.28:020.78:370.07:074:43Full Moon23Fri
24Sat2:266.42:287.28:370.79:080.07:064:45Waning Gibbous24Sat
25Sun2:596.53:027.09:130.79:390.17:054:46Waning Gibbous25Sun
26Mon3:316.53:376.99:490.710:120.27:044:47Waning Gibbous26Mon
27Tue4:046.64:146.710:270.710:470.47:034:49Waning Gibbous27Tue
28Wed4:396.64:556.411:090.711:260.67:024:50Third Quarter28Wed
29Thu5:196.75:426.211:560.77:024:51Third Quarter29Thu
30Fri6:046.76:355.912:090.712:480.77:014:53Third Quarter30Fri
31Sat6:556.87:345.812:590.91:450.66:594:54Third Quarter31Sat
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 10:35 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 neap phase. Tonight's moon is 44% 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 minimum.

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 (44% illuminated). This places Squamscott River, Great Bay, NH in a neap tide cycle, so tidal ranges are near their weekly minimum 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