43.0533’ N, 70.9133’ W

Squamscott River, Great Bay, NH

52°
H 54°
L 32°
NW
13mph
High tide
5:58 pm

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

TIDE TIMES for Saturday, October 31, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : 12:52 am (-0.2 ft)
Next high tide : in 4h 46m at 5:58 pm (7.8 ft)
Sunset today : 5:37 pm
Sunrise tomorrow : 7:17 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Sep 1960

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:576.89:187.83:010.03:180.36:087:18Waxing Gibbous1Thu
2Fri10:027.010:228.04:08-0.24:240.16:097:17Waxing Gibbous2Fri
3Sat11:027.311:218.35:09-0.55:25-0.26:107:15Waxing Gibbous3Sat
4Sun11:577.66:05-0.76:21-0.56:117:13Full Moon4Sun
5Mon12:168.412:507.96:57-0.97:15-0.76:127:11Full Moon5Mon
6Tue1:098.41:398.07:46-0.98:06-0.76:137:10Full Moon6Tue
7Wed2:008.32:278.08:34-0.88:56-0.66:147:08Waning Gibbous7Wed
8Thu2:498.13:137.99:20-0.59:45-0.46:157:06Waning Gibbous8Thu
9Fri3:387.73:597.710:06-0.210:35-0.26:167:04Waning Gibbous9Fri
10Sat4:277.34:477.410:530.211:260.26:177:03Waning Gibbous10Sat
11Sun5:206.85:387.111:420.66:197:01Third Quarter11Sun
12Mon6:146.56:326.912:210.512:351.06:206:59Third Quarter12Mon
13Tue7:116.27:286.71:170.81:291.26:216:57Third Quarter13Tue
14Wed8:096.18:256.62:160.92:281.46:226:55Third Quarter14Wed
15Thu9:076.19:226.73:161.03:271.46:236:54Waning Crescent15Thu
16Fri10:016.210:156.84:120.94:221.26:246:52Waning Crescent16Fri
17Sat10:496.411:017.05:000.75:101.06:256:50Waning Crescent17Sat
18Sun11:316.711:447.25:420.55:520.76:266:48Waning Crescent18Sun
19Mon12:106.96:200.36:310.46:276:46New Moon19Mon
20Tue12:247.412:477.26:560.17:100.26:286:45New Moon20Tue
21Wed1:027.51:237.47:310.07:480.06:306:43New Moon21Wed
22Thu1:417.51:587.68:08-0.18:28-0.26:316:41New Moon22Thu
23Fri2:207.52:367.78:46-0.19:10-0.36:326:39Waxing Crescent23Fri
24Sat3:017.53:167.89:27-0.19:54-0.36:336:37Waxing Crescent24Sat
25Sun3:457.34:017.810:110.010:44-0.36:346:36Waxing Crescent25Sun
26Mon4:357.24:527.711:010.211:38-0.26:356:34First Quarter26Mon
27Tue5:327.05:507.611:560.36:366:32First Quarter27Tue
28Wed6:346.86:537.512:380.012:560.56:376:30First Quarter28Wed
29Thu7:406.88:017.51:410.02:020.56:386:28First Quarter29Thu
30Fri8:486.99:097.62:480.03:100.46:406:27Waxing Gibbous30Fri
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 64% 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 Third Quarter (64% 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