43.0533’ N, 70.9133’ W

Squamscott River, Great Bay, NH

70°
H 75°
L 65°
SW
5mph
High tide
5:12 pm

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

TIDE TIMES for Thursday, October 1, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : 12:03 am (-0.3 ft)
Next high tide : in 5h 16m at 5:12 pm (7.9 ft)
Sunset today : 6:25 pm
Sunrise tomorrow : 6:41 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Nov 1916

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:546.75:057.611:110.611:58-0.16:184:36First Quarter1Wed
2Thu5:576.66:117.412:150.76:194:35First Quarter2Thu
3Fri7:036.77:207.31:010.11:230.76:204:33First Quarter3Fri
4Sat8:076.98:287.22:050.12:330.66:224:32Waxing Gibbous4Sat
5Sun9:097.29:357.23:090.23:410.36:234:31Waxing Gibbous5Sun
6Mon10:067.510:347.24:090.14:430.06:244:30Waxing Gibbous6Mon
7Tue10:577.711:297.35:030.15:38-0.36:254:28Waxing Gibbous7Tue
8Wed11:457.95:520.16:28-0.56:274:27Full Moon8Wed
9Thu12:197.212:298.06:380.27:14-0.66:284:26Full Moon9Thu
10Fri1:067.11:127.97:210.37:59-0.56:294:25Full Moon10Fri
11Sat1:517.01:547.88:040.58:42-0.36:314:24Full Moon11Sat
12Sun2:346.82:357.68:450.79:23-0.16:324:23Waning Gibbous12Sun
13Mon3:166.63:177.39:260.910:060.26:334:22Waning Gibbous13Mon
14Tue4:006.44:007.010:091.110:500.46:344:21Waning Gibbous14Tue
15Wed4:466.24:476.810:551.311:370.76:364:20Waning Gibbous15Wed
16Thu5:356.15:386.611:461.56:374:19Third Quarter16Thu
17Fri6:256.06:316.412:250.912:391.56:384:18Third Quarter17Fri
18Sat7:156.17:256.31:141.01:341.56:404:17Third Quarter18Sat
19Sun8:056.38:216.22:031.02:301.46:414:17Third Quarter19Sun
20Mon8:536.59:156.32:521.03:251.16:424:16Waning Crescent20Mon
21Tue9:396.810:076.43:400.94:170.76:434:15Waning Crescent21Tue
22Wed10:227.210:556.64:270.85:050.36:444:14Waning Crescent22Wed
23Thu11:057.511:416.85:110.65:50-0.16:464:14New Moon23Thu
24Fri11:477.95:550.46:35-0.56:474:13New Moon24Fri
25Sat12:266.912:328.16:400.27:21-0.76:484:13New Moon25Sat
26Sun1:147.11:198.37:270.18:09-0.96:494:12New Moon26Sun
27Mon2:027.12:088.48:160.08:59-0.96:504:11Waxing Crescent27Mon
28Tue2:527.13:008.39:070.09:50-0.86:524:11Waxing Crescent28Tue
29Wed3:457.13:558.110:010.110:45-0.66:534:11Waxing Crescent29Wed
30Thu4:427.14:557.811:000.311:43-0.46:544:10First Quarter30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8422687)

Common Questions About Squamscott River, Great Bay, NH Tides

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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 Waning 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