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

TIDE TIMES for Friday, June 26, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 57m at 6:13 am (0.5 ft)
Next high tide : 11:59 am (6.1 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 5:05 am
Moon phase : Waxing Gibbous (90% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Sep 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:278.42:587.99:06-0.99:23-0.76:087:18Full Moon1Mon
2Tue3:168.43:448.29:51-0.910:14-0.86:097:16Waning Gibbous2Tue
3Wed4:078.24:318.310:38-0.811:07-0.86:107:15Waning Gibbous3Wed
4Thu4:597.95:218.211:27-0.56:117:13Waning Gibbous4Thu
5Fri5:567.46:168.012:02-0.612:20-0.16:127:11Third Quarter5Fri
6Sat6:577.07:167.71:02-0.31:170.46:137:09Third Quarter6Sat
7Sun8:036.68:207.42:060.02:190.86:157:08Third Quarter7Sun
8Mon9:116.49:287.33:140.23:271.06:167:06Waning Crescent8Mon
9Tue10:206.310:357.24:250.44:361.16:177:04Waning Crescent9Tue
10Wed11:226.411:367.35:300.35:401.06:187:02Waning Crescent10Wed
11Thu12:166.56:260.26:350.86:197:01Waning Crescent11Thu
12Fri12:287.41:036.77:150.27:230.66:206:59New Moon12Fri
13Sat1:157.41:456.87:570.18:060.56:216:57New Moon13Sat
14Sun1:577.42:227.08:340.28:460.46:226:55New Moon14Sun
15Mon2:367.32:577.09:080.39:230.46:236:53New Moon15Mon
16Tue3:127.13:297.19:400.49:580.46:246:52Waxing Crescent16Tue
17Wed3:486.94:017.010:110.610:340.56:256:50Waxing Crescent17Wed
18Thu4:246.74:337.010:440.811:100.66:266:48Waxing Crescent18Thu
19Fri5:016.45:086.811:191.011:510.76:286:46Waxing Crescent19Fri
20Sat5:426.15:496.711:591.36:296:44First Quarter20Sat
21Sun6:295.96:366.612:360.912:431.56:306:42First Quarter21Sun
22Mon7:215.77:296.51:261.01:341.66:316:41First Quarter22Mon
23Tue8:195.68:286.62:221.12:301.66:326:39First Quarter23Tue
24Wed9:215.79:316.83:231.03:321.56:336:37Waxing Gibbous24Wed
25Thu10:226.010:337.14:260.84:351.26:346:35Waxing Gibbous25Thu
26Fri11:176.511:317.55:240.45:350.76:356:33Waxing Gibbous26Fri
27Sat12:077.06:15-0.16:300.16:366:32Waxing Gibbous27Sat
28Sun12:237.912:557.67:03-0.57:21-0.46:386:30Full Moon28Sun
29Mon1:158.21:418.17:50-0.78:12-0.96:396:28Full Moon29Mon
30Tue2:068.32:288.58:36-0.99:03-1.26:406:26Full Moon30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8422687)

Common Questions About Squamscott River, Great Bay, NH Tides

Show All
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 9:06 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 spring phase. Tonight's moon is 90% 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 maximum.

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 Waxing Gibbous (90% illuminated). This places Squamscott River, Great Bay, NH in a spring tide cycle, so tidal ranges are near their weekly maximum 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