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

TIDE TIMES for Monday, July 6, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : 1:08 am (0.8 ft)
Next high tide : in 2h 28m at 6:40 pm (6.9 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:11 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - May 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:438.14:257.010:31-0.610:380.55:367:44Waning Gibbous1Sat
2Sun4:297.75:136.711:18-0.311:260.85:357:45Waning Gibbous2Sun
3Mon5:167.46:046.412:070.15:347:46Waning Gibbous3Mon
4Tue6:087.06:576.212:161.112:580.55:327:47Third Quarter4Tue
5Wed7:026.77:506.11:101.31:510.75:317:49Third Quarter5Wed
6Thu7:586.48:446.22:071.52:430.95:307:50Third Quarter6Thu
7Fri8:556.39:366.33:061.53:361.05:297:51Third Quarter7Fri
8Sat9:526.210:276.54:051.44:271.15:277:52Waning Crescent8Sat
9Sun10:476.211:126.75:011.25:151.05:267:53Waning Crescent9Sun
10Mon11:376.311:547.05:500.95:591.05:257:54Waning Crescent10Mon
11Tue12:226.46:340.66:380.95:247:55Waning Crescent11Tue
12Wed12:327.21:056.67:150.37:170.85:237:56New Moon12Wed
13Thu1:107.51:476.77:550.07:570.75:227:57New Moon13Thu
14Fri1:497.72:296.88:36-0.28:380.65:207:58New Moon14Fri
15Sat2:307.93:116.89:18-0.49:210.55:198:00New Moon15Sat
16Sun3:128.03:556.910:02-0.510:070.55:188:01Waxing Crescent16Sun
17Mon3:588.04:426.910:48-0.510:560.55:178:02Waxing Crescent17Mon
18Tue4:477.95:346.911:38-0.411:500.55:168:03Waxing Crescent18Tue
19Wed5:427.86:316.912:32-0.35:168:04First Quarter19Wed
20Thu6:417.67:297.012:490.61:28-0.25:158:05First Quarter20Thu
21Fri7:447.48:297.21:520.52:27-0.15:148:06First Quarter21Fri
22Sat8:507.29:297.42:570.53:260.05:138:07First Quarter22Sat
23Sun9:567.110:277.74:040.34:260.15:128:08Waxing Gibbous23Sun
24Mon11:007.111:237.95:090.05:250.25:118:09Waxing Gibbous24Mon
25Tue11:597.16:09-0.36:190.25:118:10Waxing Gibbous25Tue
26Wed12:158.112:547.17:03-0.57:100.35:108:10Full Moon26Wed
27Thu1:048.11:467.17:54-0.67:590.35:098:11Full Moon27Thu
28Fri1:528.12:357.08:42-0.68:460.55:098:12Full Moon28Fri
29Sat2:388.03:216.99:28-0.59:320.65:088:13Full Moon29Sat
30Sun3:237.84:066.810:12-0.310:160.85:078:14Waning Gibbous30Sun
31Mon4:067.64:506.610:56-0.111:001.05:078:15Waning Gibbous31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8422687)

Common Questions About Squamscott River, Great Bay, NH Tides

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What time does the tide turn (slack tide) in Squamscott River, Great Bay, NH today?

Slack tide in Squamscott River, Great Bay, NH is approximately 9:54 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

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 62% 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 (62% 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