43.0533’ N, 70.9133’ W

Squamscott River, Great Bay, NH

59°
H 67°
L 45°
SSW
6mph
High tide
5:51 pm

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

TIDE TIMES for Friday, October 16, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : 12:44 am (0.9 ft)
Next high tide : in 4h 22m at 5:51 pm (6.7 ft)
Sunset today : 5:59 pm
Sunrise tomorrow : 6:58 am
Moon phase : First Quarter (31% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jan 1889

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:057.312:178.66:22-0.47:06-1.37:154:20New Moon1Tue
2Wed1:007.51:118.77:16-0.58:00-1.47:154:20New Moon2Wed
3Thu1:547.52:048.68:10-0.58:52-1.37:154:21Waxing Crescent3Thu
4Fri2:477.52:578.49:03-0.39:44-1.17:154:22Waxing Crescent4Fri
5Sat3:397.43:508.09:57-0.110:36-0.87:154:23Waxing Crescent5Sat
6Sun4:327.24:457.610:520.111:29-0.47:154:24Waxing Crescent6Sun
7Mon5:277.05:427.111:500.47:154:25First Quarter7Mon
8Tue6:226.86:416.712:220.012:510.67:144:26First Quarter8Tue
9Wed7:176.77:406.31:160.41:520.87:144:27First Quarter9Wed
10Thu8:116.68:416.12:110.72:540.87:144:29First Quarter10Thu
11Fri9:066.79:406.03:071.03:540.87:134:30Waxing Gibbous11Fri
12Sat9:586.710:346.04:021.14:480.67:134:31Waxing Gibbous12Sat
13Sun10:456.911:226.14:521.15:360.47:134:32Waxing Gibbous13Sun
14Mon11:297.05:371.06:180.27:124:33Waxing Gibbous14Mon
15Tue12:066.212:107.26:180.96:580.17:124:34Full Moon15Tue
16Wed12:476.312:497.36:560.87:35-0.17:114:36Full Moon16Wed
17Thu1:266.41:267.47:330.78:10-0.27:114:37Full Moon17Thu
18Fri2:036.52:037.58:100.68:45-0.27:104:38Full Moon18Fri
19Sat2:386.62:397.58:480.59:21-0.37:094:39Waning Gibbous19Sat
20Sun3:136.73:177.49:270.49:58-0.37:094:41Waning Gibbous20Sun
21Mon3:516.83:587.410:100.310:39-0.37:084:42Waning Gibbous21Mon
22Tue4:326.94:447.210:560.311:24-0.27:074:43Waning Gibbous22Tue
23Wed5:187.05:367.011:480.37:064:44Third Quarter23Wed
24Thu6:087.16:346.812:130.012:450.27:064:46Third Quarter24Thu
25Fri7:037.27:366.61:060.11:450.17:054:47Third Quarter25Fri
26Sat8:037.48:446.52:040.32:510.07:044:48Waning Crescent26Sat
27Sun9:077.69:536.63:070.33:59-0.27:034:50Waning Crescent27Sun
28Mon10:107.810:566.84:120.25:03-0.57:024:51Waning Crescent28Mon
29Tue11:108.111:547.15:130.06:01-0.97:014:52New Moon29Tue
30Wed12:078.36:11-0.26:56-1.17:004:54New Moon30Wed
31Thu12:497.31:018.47:06-0.47:48-1.26:594:55New Moon31Thu
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 31% 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 First Quarter (31% 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