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

TIDE TIMES for Thursday, July 23, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : 4:45 am (0.9 ft)
Next high tide : in 3h 39m at 9:48 pm (6.8 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 5:25 am
Moon phase : Waxing Gibbous (71% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jun 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:328.02:156.98:22-0.58:260.35:068:16New Moon1Mon
2Tue2:198.33:037.19:09-0.79:150.25:068:17New Moon2Tue
3Wed3:088.43:527.29:58-0.810:060.15:058:17Waxing Crescent3Wed
4Thu3:598.44:447.310:48-0.810:590.15:058:18Waxing Crescent4Thu
5Fri4:528.25:387.411:40-0.811:570.25:058:19Waxing Crescent5Fri
6Sat5:498.06:357.412:35-0.65:048:20First Quarter6Sat
7Sun6:507.77:347.512:580.21:31-0.45:048:20First Quarter7Sun
8Mon7:537.48:327.62:010.32:29-0.15:048:21First Quarter8Mon
9Tue8:587.19:317.63:070.33:280.15:048:21Waxing Gibbous9Tue
10Wed10:046.910:307.74:130.24:280.35:038:22Waxing Gibbous10Wed
11Thu11:076.811:257.85:170.05:270.55:038:22Waxing Gibbous11Thu
12Fri12:056.86:15-0.16:210.65:038:23Waxing Gibbous12Fri
13Sat12:167.812:586.77:07-0.27:110.65:038:23Full Moon13Sat
14Sun1:057.81:476.77:56-0.27:580.75:038:24Full Moon14Sun
15Mon1:517.82:336.78:42-0.28:420.85:038:24Full Moon15Mon
16Tue2:347.73:166.79:24-0.19:250.85:038:25Full Moon16Tue
17Wed3:157.63:566.610:040.010:050.95:038:25Waning Gibbous17Wed
18Thu3:557.44:366.610:420.110:461.05:038:25Waning Gibbous18Thu
19Fri4:357.25:156.511:200.311:281.15:038:26Waning Gibbous19Fri
20Sat5:167.05:566.511:580.45:048:26Waning Gibbous20Sat
21Sun5:596.86:386.512:121.212:380.65:048:26Third Quarter21Sun
22Mon6:456.57:216.612:591.21:200.75:048:26Third Quarter22Mon
23Tue7:346.38:056.71:481.22:030.95:048:26Third Quarter23Tue
24Wed8:256.28:526.82:391.22:491.05:058:27Third Quarter24Wed
25Thu9:196.19:417.03:321.03:391.15:058:27Waning Crescent25Thu
26Fri10:176.110:337.24:280.84:321.05:058:27Waning Crescent26Fri
27Sat11:136.211:257.65:240.55:260.95:068:27Waning Crescent27Sat
28Sun12:076.56:170.16:190.65:068:27Waning Crescent28Sun
29Mon12:167.912:596.77:08-0.37:110.45:078:27New Moon29Mon
30Tue1:078.21:517.07:59-0.68:040.15:078:26New Moon30Tue
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 1:16 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 71% 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 Waxing Gibbous (71% 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