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

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide : 1:28 pm (0.4 ft)
Next high tide : in 3h 48m at 6:53 am (6.8 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:12 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jul 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:276.69:517.43:380.43:500.75:088:26Waxing Gibbous1Wed
2Thu10:306.310:477.34:420.44:491.05:088:26Waxing Gibbous2Thu
3Fri11:296.311:397.35:410.45:441.15:098:26Waxing Gibbous3Fri
4Sat12:226.26:340.36:341.15:108:26Waxing Gibbous4Sat
5Sun12:287.31:106.37:220.37:201.15:108:25Full Moon5Sun
6Mon1:127.31:546.38:060.28:021.15:118:25Full Moon6Mon
7Tue1:547.42:356.48:460.28:421.15:128:25Full Moon7Tue
8Wed2:347.43:136.49:230.29:201.05:128:24Full Moon8Wed
9Thu3:117.33:496.59:570.29:571.05:138:24Waning Gibbous9Thu
10Fri3:477.34:246.510:300.210:351.05:148:23Waning Gibbous10Fri
11Sat4:237.24:596.611:040.311:131.05:148:23Waning Gibbous11Sat
12Sun5:007.05:346.711:380.311:551.05:158:22Waning Gibbous12Sun
13Mon5:406.86:126.812:160.45:168:22Third Quarter13Mon
14Tue6:256.66:546.912:400.912:570.65:178:21Third Quarter14Tue
15Wed7:136.57:397.11:290.81:420.75:188:21Third Quarter15Wed
16Thu8:066.38:307.22:210.72:310.85:198:20Third Quarter16Thu
17Fri9:056.29:267.43:180.63:260.85:208:19Waning Crescent17Fri
18Sat10:096.310:267.74:200.44:260.75:208:18Waning Crescent18Sat
19Sun11:136.411:278.05:230.15:280.55:218:18Waning Crescent19Sun
20Mon12:146.76:23-0.36:280.35:228:17New Moon20Mon
21Tue12:268.41:117.07:20-0.77:260.05:238:16New Moon21Tue
22Wed1:248.62:077.48:15-1.08:23-0.35:248:15New Moon22Wed
23Thu2:208.73:017.69:08-1.19:20-0.45:258:14New Moon23Thu
24Fri3:158.73:537.89:59-1.110:15-0.55:268:13Waxing Crescent24Fri
25Sat4:098.54:457.910:49-1.011:10-0.45:278:12Waxing Crescent25Sat
26Sun5:038.15:377.911:40-0.75:288:11Waxing Crescent26Sun
27Mon6:007.66:307.712:08-0.212:32-0.35:298:10First Quarter27Mon
28Tue6:587.17:257.51:070.01:250.25:308:09First Quarter28Tue
29Wed7:586.78:217.32:070.32:200.65:318:08First Quarter29Wed
30Thu8:596.39:187.13:090.53:181.05:328:07First Quarter30Thu
31Fri10:026.110:177.04:130.64:181.25:338:06Waxing Gibbous31Fri
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 10:10 am — 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 neap phase. Tonight's moon is 52% 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 (52% 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