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

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : 3:44 am (0.8 ft)
Next high tide : in 3h 20m at 8:53 pm (7.0 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 5:24 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Mar 2076

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:117.410:026.53:120.74:06-0.16:175:33Waning Crescent1Sun
2Mon10:187.711:046.94:200.45:10-0.56:155:35Waning Crescent2Mon
3Tue11:198.15:220.06:06-0.86:145:36New Moon3Tue
4Wed12:007.312:168.36:20-0.46:59-1.16:125:37New Moon4Wed
5Thu12:527.71:108.57:15-0.87:49-1.26:105:38New Moon5Thu
6Fri1:427.92:018.48:07-1.08:37-1.26:095:40New Moon6Fri
7Sat2:298.12:518.28:58-1.09:23-0.96:075:41Waxing Crescent7Sat
8Sun4:168.04:417.810:48-0.911:09-0.57:056:42Waxing Crescent8Sun
9Mon5:027.85:327.311:38-0.611:57-0.17:036:43Waxing Crescent9Mon
10Tue5:507.56:256.812:32-0.27:026:44First Quarter10Tue
11Wed6:427.17:236.412:470.51:280.27:006:46First Quarter11Wed
12Thu7:376.88:236.01:410.92:270.56:586:47First Quarter12Thu
13Fri8:366.59:265.82:391.33:300.86:576:48First Quarter13Fri
14Sat9:396.410:285.83:431.54:350.96:556:49Waxing Gibbous14Sat
15Sun10:406.411:245.94:471.45:340.86:536:50Waxing Gibbous15Sun
16Mon11:356.65:441.36:240.66:516:52Waxing Gibbous16Mon
17Tue12:126.212:226.86:321.07:060.46:496:53Waxing Gibbous17Tue
18Wed12:546.41:047.07:140.87:430.26:486:54Waxing Gibbous18Wed
19Thu1:326.71:437.17:520.58:170.16:466:55Full Moon19Thu
20Fri2:076.92:197.28:280.38:490.06:446:56Full Moon20Fri
21Sat2:407.12:557.39:030.19:210.06:426:58Full Moon21Sat
22Sun3:127.23:307.29:39-0.19:550.06:416:59Waning Gibbous22Sun
23Mon3:447.44:077.110:17-0.210:310.16:397:00Waning Gibbous23Mon
24Tue4:197.54:477.010:57-0.211:110.26:377:01Waning Gibbous24Tue
25Wed4:587.55:326.811:42-0.211:550.46:357:02Waning Gibbous25Wed
26Thu5:447.46:246.512:32-0.16:347:03Third Quarter26Thu
27Fri6:377.37:246.412:460.61:290.16:327:05Third Quarter27Fri
28Sat7:387.28:306.31:440.82:320.26:307:06Third Quarter28Sat
29Sun8:467.29:416.42:490.83:400.26:287:07Third Quarter29Sun
30Mon9:587.310:496.73:590.74:500.06:267:08Waning Crescent30Mon
31Tue11:067.511:497.15:100.45:53-0.36:257:09Waning Crescent31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8422687)

Common Questions About Squamscott River, Great Bay, NH Tides

Show All
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 12:18 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 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 First 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