Nearby Harbors
43.0533’ N, 70.9133’ W

Squamscott River, Great Bay, NH

82°
H 84°
L 57°
SW
10mph
Low tide
5:58 pm
Photo Credits

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

TIDE TIMES for Monday, August 24, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 5h 02m at 5:58 pm (1.4 ft)
Next high tide : 11:52 pm (6.9 ft)
Sunset today : 7:32 pm
Sunrise tomorrow : 5:59 am
Moon phase : Waxing Gibbous (88% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

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Squamscott River, Great Bay, NH Tides - Jul 1997

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:276.911:467.95:38-0.15:480.35:088:26Waning Crescent1Tue
2Wed12:246.96:34-0.36:420.45:088:26Waning Crescent2Wed
3Thu12:387.91:177.07:26-0.47:320.45:098:26New Moon3Thu
4Fri1:267.92:057.08:15-0.48:190.45:098:26New Moon4Fri
5Sat2:127.92:516.99:00-0.39:040.55:108:25New Moon5Sat
6Sun2:567.83:336.99:41-0.39:460.65:118:25New Moon6Sun
7Mon3:377.64:146.910:21-0.110:270.75:118:25Waxing Crescent7Mon
8Tue4:177.44:536.810:590.111:090.85:128:24Waxing Crescent8Tue
9Wed4:577.25:346.711:380.211:511.05:138:24Waxing Crescent9Wed
10Thu5:406.96:166.712:170.45:148:23Waxing Crescent10Thu
11Fri6:256.76:596.712:371.112:590.65:148:23First Quarter11Fri
12Sat7:126.57:446.71:241.11:420.85:158:22First Quarter12Sat
13Sun8:026.38:306.72:141.12:280.95:168:22First Quarter13Sun
14Mon8:556.19:196.93:061.13:171.05:178:21First Quarter14Mon
15Tue9:516.110:117.14:011.04:091.05:188:21Waxing Gibbous15Tue
16Wed10:476.211:027.34:570.75:030.95:198:20Waxing Gibbous16Wed
17Thu11:416.411:527.75:500.45:550.65:198:19Waxing Gibbous17Thu
18Fri12:316.76:400.06:460.45:208:18Full Moon18Fri
19Sat12:428.01:217.07:29-0.47:360.15:218:18Full Moon19Sat
20Sun1:318.32:117.48:18-0.88:28-0.25:228:17Full Moon20Sun
21Mon2:228.63:017.69:07-1.09:20-0.45:238:16Full Moon21Mon
22Tue3:138.63:517.99:56-1.210:12-0.55:248:15Waning Gibbous22Tue
23Wed4:058.64:428.010:46-1.111:07-0.55:258:14Waning Gibbous23Wed
24Thu4:598.45:368.011:38-1.05:268:13Waning Gibbous24Thu
25Fri5:568.06:328.012:04-0.412:32-0.75:278:12Third Quarter25Fri
26Sat6:577.67:317.91:04-0.31:29-0.45:288:11Third Quarter26Sat
27Sun8:007.38:307.72:07-0.12:270.05:298:10Third Quarter27Sun
28Mon9:046.99:327.63:120.03:290.35:308:09Waning Crescent28Mon
29Tue10:106.710:337.64:190.14:320.55:318:08Waning Crescent29Tue
30Wed11:136.711:317.65:230.15:330.65:328:07Waning Crescent30Wed
31Thu12:096.76:200.06:280.65:338:06Waning Crescent31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8422687)

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Common Questions About Squamscott River, Great Bay, NH Tides

Collapse All
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 88% 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 Waxing Gibbous (88% 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

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