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

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide : 3:35 pm (0.7 ft)
Next high tide : in 5h 43m at 9:06 am (6.5 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:04 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jun 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:466.89:267.02:571.03:260.45:068:16First Quarter1Wed
2Thu9:466.910:197.43:570.74:200.25:068:16Waxing Gibbous2Thu
3Fri10:467.111:127.94:570.25:150.15:068:17Waxing Gibbous3Fri
4Sat11:447.35:55-0.36:08-0.15:058:18Waxing Gibbous4Sat
5Sun12:038.312:407.56:49-0.87:01-0.35:058:19Full Moon5Sun
6Mon12:548.71:367.67:43-1.17:53-0.35:048:19Full Moon6Mon
7Tue1:478.92:317.68:37-1.38:47-0.35:048:20Full Moon7Tue
8Wed2:408.93:277.69:31-1.49:41-0.25:048:21Waning Gibbous8Wed
9Thu3:358.84:227.510:25-1.210:360.05:048:21Waning Gibbous9Thu
10Fri4:308.55:197.311:21-1.011:340.25:048:22Waning Gibbous10Fri
11Sat5:288.16:187.212:18-0.65:038:22Waning Gibbous11Sat
12Sun6:297.77:187.012:350.51:17-0.35:038:23Third Quarter12Sun
13Mon7:317.38:177.01:390.72:150.15:038:23Third Quarter13Mon
14Tue8:326.99:147.02:430.83:130.45:038:24Third Quarter14Tue
15Wed9:346.610:097.03:470.94:090.65:038:24Waning Crescent15Wed
16Thu10:346.511:007.14:490.85:030.85:038:25Waning Crescent16Thu
17Fri11:296.411:467.25:440.75:520.95:038:25Waning Crescent17Fri
18Sat12:196.46:330.56:361.05:038:25Waning Crescent18Sat
19Sun12:297.21:046.47:180.47:171.15:048:26New Moon19Sun
20Mon1:097.31:476.47:590.37:561.15:048:26New Moon20Mon
21Tue1:487.32:286.48:370.28:341.15:048:26New Moon21Tue
22Wed2:257.33:076.49:140.29:111.15:048:26New Moon22Wed
23Thu3:027.33:456.49:500.29:481.15:048:26New Moon23Thu
24Fri3:397.34:226.410:260.210:261.15:058:27Waxing Crescent24Fri
25Sat4:167.34:596.411:040.211:071.15:058:27Waxing Crescent25Sat
26Sun4:567.25:406.511:430.211:521.15:058:27Waxing Crescent26Sun
27Mon5:397.26:236.612:260.25:068:27First Quarter27Mon
28Tue6:277.17:096.812:401.01:110.25:068:27First Quarter28Tue
29Wed7:207.07:587.11:330.92:000.25:078:27First Quarter29Wed
30Thu8:166.98:507.42:290.72:510.25:078:27First Quarter30Thu
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 12:20 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 transitional phase. Tonight's moon is 67% 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 (67% 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