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

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : in 1h 52m at 12:19 am (0.9 ft)
Next high tide (tomorrow) : 6:04 am (7.0 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:10 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - May 2057

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:337.312:567.17:070.17:240.25:367:45Waning Crescent1Tue
2Wed1:167.51:417.17:520.08:050.35:347:46New Moon2Wed
3Thu1:557.52:237.08:34-0.18:420.55:337:47New Moon3Thu
4Fri2:327.53:036.99:12-0.19:180.65:327:48New Moon4Fri
5Sat3:077.53:416.79:49-0.19:520.85:307:49New Moon5Sat
6Sun3:417.34:186.610:250.110:281.05:297:50Waxing Crescent6Sun
7Mon4:167.24:576.411:020.211:061.25:287:52Waxing Crescent7Mon
8Tue4:547.05:396.211:420.411:471.35:277:53Waxing Crescent8Tue
9Wed5:366.86:256.112:260.65:257:54Waxing Crescent9Wed
10Thu6:236.77:146.012:331.51:130.75:247:55First Quarter10Thu
11Fri7:146.68:056.11:241.52:030.85:237:56First Quarter11Fri
12Sat8:096.68:576.22:181.52:550.85:227:57First Quarter12Sat
13Sun9:066.69:506.53:151.33:480.75:217:58First Quarter13Sun
14Mon10:046.810:417.04:141.04:420.55:207:59Waxing Gibbous14Mon
15Tue11:017.011:297.55:110.65:330.25:198:00Waxing Gibbous15Tue
16Wed11:557.36:050.06:22-0.15:188:01Waxing Gibbous16Wed
17Thu12:168.012:477.56:56-0.57:10-0.35:178:02Full Moon17Thu
18Fri1:038.41:397.77:46-1.07:59-0.45:168:03Full Moon18Fri
19Sat1:518.72:317.88:37-1.38:49-0.45:158:04Full Moon19Sat
20Sun2:418.93:247.89:29-1.49:41-0.45:148:05Waning Gibbous20Sun
21Mon3:338.84:197.610:22-1.310:34-0.25:138:06Waning Gibbous21Mon
22Tue4:278.65:167.411:17-1.111:310.15:138:07Waning Gibbous22Tue
23Wed5:258.36:177.212:16-0.85:128:08Waning Gibbous23Wed
24Thu6:277.97:207.012:330.41:18-0.45:118:09Third Quarter24Thu
25Fri7:337.58:237.01:380.62:20-0.15:108:10Third Quarter25Fri
26Sat8:387.29:257.02:460.83:230.25:108:11Third Quarter26Sat
27Sun9:446.910:237.13:540.84:240.35:098:12Waning Crescent27Sun
28Mon10:466.811:177.24:590.65:200.55:088:13Waning Crescent28Mon
29Tue11:426.85:560.56:100.65:088:14Waning Crescent29Tue
30Wed12:047.312:326.76:460.36:550.75:078:15Waning Crescent30Wed
31Thu12:477.41:186.77:310.17:350.85:078:15New Moon31Thu
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 3:11 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 72% 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 Waning Gibbous (72% 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