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

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 2h 55m at 7:04 am (-0.6 ft)
Next high tide : 12:56 pm (6.9 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:16 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Apr 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:127.28:026.312:200.72:060.16:247:09First Quarter1Sun
2Mon8:177.29:106.42:220.83:110.26:237:11First Quarter2Mon
3Tue9:277.210:196.63:290.84:200.06:217:12Waxing Gibbous3Tue
4Wed10:387.411:237.04:400.55:26-0.26:197:13Waxing Gibbous4Wed
5Thu11:427.75:460.16:24-0.56:177:14Waxing Gibbous5Thu
6Fri12:197.512:398.06:45-0.37:16-0.76:167:15Full Moon6Fri
7Sat1:107.91:338.17:40-0.78:06-0.86:147:16Full Moon7Sat
8Sun1:588.22:258.18:31-1.08:53-0.86:127:18Full Moon8Sun
9Mon2:458.33:148.09:20-1.19:38-0.66:117:19Full Moon9Mon
10Tue3:308.24:027.710:08-1.010:23-0.26:097:20Waning Gibbous10Tue
11Wed4:148.04:507.310:55-0.711:080.26:077:21Waning Gibbous11Wed
12Thu4:597.75:406.911:44-0.411:560.66:067:22Waning Gibbous12Thu
13Fri5:477.36:336.512:350.16:047:23Third Quarter13Fri
14Sat6:396.97:296.212:471.01:300.46:027:25Third Quarter14Sat
15Sun7:356.68:276.01:421.32:270.86:017:26Third Quarter15Sun
16Mon8:356.49:265.92:421.53:270.95:597:27Third Quarter16Mon
17Tue9:366.310:236.03:441.64:271.05:577:28Third Quarter17Tue
18Wed10:356.411:156.34:461.45:210.95:567:29Waning Crescent18Wed
19Thu11:276.611:596.55:401.26:070.75:547:30Waning Crescent19Thu
20Fri12:136.76:260.96:470.65:537:32Waning Crescent20Fri
21Sat12:396.812:556.97:070.67:230.45:517:33Waning Crescent21Sat
22Sun1:157.11:357.07:450.37:580.35:497:34New Moon22Sun
23Mon1:507.42:147.18:220.08:330.25:487:35New Moon23Mon
24Tue2:247.62:527.19:00-0.39:100.25:467:36New Moon24Tue
25Wed2:597.73:327.19:40-0.49:490.25:457:37Waxing Crescent25Wed
26Thu3:377.84:147.010:21-0.510:310.35:437:38Waxing Crescent26Thu
27Fri4:197.85:006.911:06-0.511:170.45:427:40Waxing Crescent27Fri
28Sat5:067.85:516.811:57-0.35:407:41Waxing Crescent28Sat
29Sun5:597.66:506.612:090.612:52-0.25:397:42First Quarter29Sun
30Mon7:007.47:546.61:080.71:53-0.15:387:43First Quarter30Mon
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 10:00 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 spring phase. Tonight's moon is 1% 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 New Moon (1% 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