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

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 2h 00m at 6:10 pm (0.3 ft)
Next high tide (tomorrow) : 12:08 am (8.3 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:15 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Apr 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:388.01:048.27:11-0.97:35-0.96:237:10New Moon1Sun
2Mon1:288.41:588.38:04-1.38:25-1.06:217:11New Moon2Mon
3Tue2:188.72:508.28:56-1.59:14-0.96:207:13New Moon3Tue
4Wed3:078.73:418.09:47-1.510:03-0.76:187:14Waxing Crescent4Wed
5Thu3:558.54:337.710:38-1.210:53-0.36:167:15Waxing Crescent5Thu
6Fri4:458.25:267.311:31-0.811:440.16:147:16Waxing Crescent6Fri
7Sat5:387.86:236.812:26-0.46:137:17First Quarter7Sat
8Sun6:357.37:226.512:400.61:240.16:117:18First Quarter8Sun
9Mon7:366.98:236.31:400.92:250.56:097:20First Quarter9Mon
10Tue8:386.69:246.22:431.23:270.76:087:21First Quarter10Tue
11Wed9:416.510:226.33:491.24:280.86:067:22Waxing Gibbous11Wed
12Thu10:406.511:146.54:511.25:220.86:047:23Waxing Gibbous12Thu
13Fri11:336.511:596.75:460.96:090.76:037:24Waxing Gibbous13Fri
14Sat12:196.76:330.76:490.66:017:25Waxing Gibbous14Sat
15Sun12:396.91:026.77:140.47:260.65:597:27Full Moon15Sun
16Mon1:167.11:416.87:520.28:000.55:587:28Full Moon16Mon
17Tue1:517.32:196.88:280.18:340.55:567:29Full Moon17Tue
18Wed2:257.42:556.89:020.09:080.55:547:30Full Moon18Wed
19Thu2:587.53:316.89:38-0.19:440.65:537:31Waning Gibbous19Thu
20Fri3:337.54:086.710:15-0.110:220.65:517:32Waning Gibbous20Fri
21Sat4:107.54:486.610:55-0.111:040.75:507:34Waning Gibbous21Sat
22Sun4:527.55:336.611:40-0.111:510.75:487:35Waning Gibbous22Sun
23Mon5:397.46:246.512:290.05:477:36Third Quarter23Mon
24Tue6:347.37:216.612:440.81:240.15:457:37Third Quarter24Tue
25Wed7:347.28:216.81:420.72:210.15:447:38Third Quarter25Wed
26Thu8:387.29:237.02:450.63:220.15:427:39Third Quarter26Thu
27Fri9:457.310:247.43:520.44:24-0.15:417:41Waning Crescent27Fri
28Sat10:517.411:227.84:580.05:24-0.25:397:42Waning Crescent28Sat
29Sun11:527.65:59-0.46:19-0.45:387:43Waning Crescent29Sun
30Mon12:158.212:487.76:56-0.87:12-0.55:377:44New Moon30Mon
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 9:09 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 5% 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 (5% 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