43.0533’ N, 70.9133’ W

Squamscott River, Great Bay, NH

66°
H -°
L 66°
SW
7mph
High tide
5:56 am

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

TIDE TIMES for Friday, October 2, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide : 12:15 pm (0.6 ft)
Next high tide : in 3h 28m at 5:56 am (6.8 ft)
Sunset today : 6:23 pm
Sunrise tomorrow : 6:42 am
Moon phase : Third Quarter (60% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Aug 1915

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:186.95:457.111:470.54:337:06Third Quarter1Sun
2Mon6:116.56:346.912:230.712:350.94:347:05Third Quarter2Mon
3Tue7:066.17:256.71:180.91:241.24:357:04Third Quarter3Tue
4Wed8:045.88:196.62:151.02:181.54:367:02Third Quarter4Wed
5Thu9:045.79:166.63:161.13:151.64:377:01Waning Crescent5Thu
6Fri10:025.710:106.84:151.04:121.64:387:00Waning Crescent6Fri
7Sat10:545.810:596.95:080.95:041.44:396:59Waning Crescent7Sat
8Sun11:406.011:447.15:530.75:491.24:406:57Waning Crescent8Sun
9Mon12:236.26:340.46:311.04:416:56New Moon9Mon
10Tue12:257.31:026.57:120.27:110.84:426:55New Moon10Tue
11Wed1:057.51:396.77:470.07:500.64:436:53New Moon11Wed
12Thu1:437.62:147.08:22-0.18:300.44:446:52New Moon12Thu
13Fri2:227.62:507.28:58-0.29:120.24:466:50Waxing Crescent13Fri
14Sat3:017.63:277.49:35-0.29:560.04:476:49Waxing Crescent14Sat
15Sun3:447.44:087.610:16-0.110:430.04:486:48Waxing Crescent15Sun
16Mon4:317.24:537.711:000.011:350.04:496:46First Quarter16Mon
17Tue5:236.95:457.611:500.34:506:45First Quarter17Tue
18Wed6:226.66:427.612:320.112:440.54:516:43First Quarter18Wed
19Thu7:256.47:457.61:330.21:450.74:526:42First Quarter19Thu
20Fri8:356.38:547.62:410.22:510.84:536:40Waxing Gibbous20Fri
21Sat9:456.410:017.73:510.14:000.74:546:38Waxing Gibbous21Sat
22Sun10:496.611:037.94:57-0.15:050.54:556:37Waxing Gibbous22Sun
23Mon11:466.95:54-0.36:030.24:576:35Full Moon23Mon
24Tue12:008.112:387.26:46-0.56:570.04:586:34Full Moon24Tue
25Wed12:528.11:267.47:34-0.57:48-0.14:596:32Full Moon25Wed
26Thu1:418.02:117.58:19-0.58:36-0.25:006:30Waning Gibbous26Thu
27Fri2:287.82:537.59:01-0.39:22-0.15:016:29Waning Gibbous27Fri
28Sat3:127.53:347.49:420.110:070.15:026:27Waning Gibbous28Sat
29Sun3:577.14:157.210:220.410:530.45:036:25Waning Gibbous29Sun
30Mon4:436.64:597.011:050.811:420.65:046:24Third Quarter30Mon
31Tue5:336.35:476.811:501.25:056:22Third Quarter31Tue
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 neap phase. Tonight's moon is 60% 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 minimum.

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 Third Quarter (60% illuminated). This places Squamscott River, Great Bay, NH in a neap tide cycle, so tidal ranges are near their weekly minimum 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