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

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide : 2:40 pm (0.4 ft)
Next high tide : in 5h 03m at 8:06 am (6.9 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:04 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jan 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:136.56:286.312:130.512:391.07:154:19Third Quarter1Fri
2Sat7:036.47:236.11:010.71:341.17:154:19Third Quarter2Sat
3Sun7:546.48:205.91:510.92:311.17:154:20Third Quarter3Sun
4Mon8:466.59:185.92:441.13:301.07:154:21Waning Crescent4Mon
5Tue9:376.710:126.03:371.14:240.87:154:22Waning Crescent5Tue
6Wed10:256.911:016.24:281.05:120.57:144:23Waning Crescent6Wed
7Thu11:097.111:456.45:130.85:550.27:144:24Waning Crescent7Thu
8Fri11:517.45:560.66:36-0.17:144:25New Moon8Fri
9Sat12:286.612:327.76:380.47:16-0.47:144:26New Moon9Sat
10Sun1:096.81:147.97:210.27:57-0.77:144:27New Moon10Sun
11Mon1:517.01:578.08:040.08:39-0.87:134:29New Moon11Mon
12Tue2:337.22:418.18:49-0.29:23-0.97:134:30Waxing Crescent12Tue
13Wed3:167.43:278.09:37-0.310:08-0.97:134:31Waxing Crescent13Wed
14Thu4:037.54:177.810:27-0.310:57-0.87:124:32Waxing Crescent14Thu
15Fri4:537.55:127.611:22-0.211:50-0.57:124:33First Quarter15Fri
16Sat5:497.56:137.212:21-0.17:114:34First Quarter16Sat
17Sun6:477.57:176.912:46-0.31:24-0.17:114:36First Quarter17Sun
18Mon7:487.58:256.81:460.02:310.07:104:37Waxing Gibbous18Mon
19Tue8:537.59:336.72:490.23:40-0.17:104:38Waxing Gibbous19Tue
20Wed9:567.610:376.83:550.24:45-0.37:094:39Waxing Gibbous20Wed
21Thu10:547.811:346.94:570.25:43-0.57:084:40Waxing Gibbous21Thu
22Fri11:487.95:520.16:35-0.77:084:42Full Moon22Fri
23Sat12:267.012:387.96:440.07:23-0.77:074:43Full Moon23Sat
24Sun1:147.11:257.97:320.08:08-0.77:064:44Full Moon24Sun
25Mon1:597.12:087.88:160.08:49-0.67:054:46Full Moon25Mon
26Tue2:417.12:507.68:590.19:29-0.47:044:47Waning Gibbous26Tue
27Wed3:217.03:307.39:410.210:07-0.17:034:48Waning Gibbous27Wed
28Thu4:006.94:127.010:220.410:460.27:024:50Waning Gibbous28Thu
29Fri4:416.74:556.611:060.611:270.47:024:51Waning Gibbous29Fri
30Sat5:246.65:436.311:530.87:014:52Third Quarter30Sat
31Sun6:096.56:336.012:110.712:430.97:004:54Third Quarter31Sun
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 11:23 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 58% 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 First Quarter (58% 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