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

TIDE TIMES for Monday, June 29, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide : 8:19 pm (1.2 ft)
Next high tide : in 5h 25m at 2:14 pm (6.2 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 5:07 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - May 2047

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:507.06:376.112:011.212:410.55:367:44First Quarter1Wed
2Thu6:416.97:296.212:511.21:310.55:357:45First Quarter2Thu
3Fri7:376.98:236.51:471.22:240.55:347:46First Quarter3Fri
4Sat8:376.99:196.82:461.03:200.45:327:48First Quarter4Sat
5Sun9:397.010:157.33:480.74:170.25:317:49Waxing Gibbous5Sun
6Mon10:427.211:107.84:510.25:130.05:307:50Waxing Gibbous6Mon
7Tue11:417.45:50-0.36:07-0.25:297:51Waxing Gibbous7Tue
8Wed12:028.212:377.66:46-0.86:59-0.45:277:52Full Moon8Wed
9Thu12:538.61:327.77:39-1.27:51-0.45:267:53Full Moon9Thu
10Fri1:448.82:277.78:33-1.48:43-0.45:257:54Full Moon10Fri
11Sat2:378.93:217.79:26-1.49:36-0.35:247:55Waning Gibbous11Sat
12Sun3:298.74:157.510:19-1.210:300.05:237:56Waning Gibbous12Sun
13Mon4:238.45:117.211:14-0.911:260.35:227:58Waning Gibbous13Mon
14Tue5:208.06:097.012:10-0.55:217:59Waning Gibbous14Tue
15Wed6:197.67:096.812:250.61:09-0.15:198:00Third Quarter15Wed
16Thu7:217.28:086.71:280.82:080.25:188:01Third Quarter16Thu
17Fri8:236.89:066.72:321.03:060.55:178:02Third Quarter17Fri
18Sat9:246.510:016.83:361.04:020.85:168:03Third Quarter18Sat
19Sun10:246.410:526.94:381.04:560.95:168:04Waning Crescent19Sun
20Mon11:196.311:387.05:340.85:451.05:158:05Waning Crescent20Mon
21Tue12:086.36:230.66:281.05:148:06Waning Crescent21Tue
22Wed12:207.112:536.47:070.47:081.05:138:07Waning Crescent22Wed
23Thu12:597.21:356.47:470.37:451.15:128:08New Moon23Thu
24Fri1:377.32:156.48:250.28:221.15:118:09New Moon24Fri
25Sat2:137.32:546.49:010.28:581.15:118:10New Moon25Sat
26Sun2:507.43:316.49:370.19:351.15:108:11New Moon26Sun
27Mon3:267.44:086.410:140.110:141.15:098:11Waxing Crescent27Mon
28Tue4:037.44:476.410:520.110:551.15:098:12Waxing Crescent28Tue
29Wed4:447.35:286.511:330.111:401.05:088:13Waxing Crescent29Wed
30Thu5:287.36:146.612:170.15:078:14Waxing Crescent30Thu
31Fri6:187.27:026.812:301.01:040.15:078:15First Quarter31Fri
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 5:16 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 100% 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 Full Moon (100% 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