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

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 3h 20m at 12:02 pm (0.2 ft)
Next high tide : 5:58 pm (6.7 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:10 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - May 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:488.93:268.19:32-1.59:47-0.75:357:45Waning Gibbous1Mon
2Tue3:398.84:207.910:24-1.410:39-0.45:347:46Waning Gibbous2Tue
3Wed4:318.65:167.511:18-1.111:330.05:337:47Waning Gibbous3Wed
4Thu5:268.26:167.212:16-0.75:317:48Waning Gibbous4Thu
5Fri6:277.77:186.912:330.41:17-0.35:307:50Third Quarter5Fri
6Sat7:307.38:216.71:360.72:200.15:297:51Third Quarter6Sat
7Sun8:357.09:246.62:421.03:230.35:287:52Third Quarter7Sun
8Mon9:406.810:236.73:501.04:250.55:267:53Waning Crescent8Mon
9Tue10:416.711:166.84:541.05:210.65:257:54Waning Crescent9Tue
10Wed11:366.75:500.86:100.65:247:55Waning Crescent10Wed
11Thu12:027.012:246.76:390.66:530.65:237:56Waning Crescent11Thu
12Fri12:437.21:086.87:220.47:310.65:227:57New Moon12Fri
13Sat1:217.31:496.88:010.28:060.75:217:58New Moon13Sat
14Sun1:577.32:286.78:380.18:410.85:207:59New Moon14Sun
15Mon2:317.43:056.79:130.19:150.85:198:01New Moon15Mon
16Tue3:057.43:416.69:480.19:490.95:188:02New Moon16Tue
17Wed3:397.34:186.510:230.110:261.05:178:03Waxing Crescent17Wed
18Thu4:147.34:566.411:010.211:061.15:168:04Waxing Crescent18Thu
19Fri4:537.25:386.411:420.211:501.15:158:05Waxing Crescent19Fri
20Sat5:377.16:256.412:270.35:148:06First Quarter20Sat
21Sun6:277.17:156.412:391.21:170.35:138:07First Quarter21Sun
22Mon7:227.08:096.61:331.12:100.35:128:08First Quarter22Mon
23Tue8:217.09:056.92:310.93:050.25:128:09First Quarter23Tue
24Wed9:237.110:037.33:330.74:030.15:118:10Waxing Gibbous24Wed
25Thu10:277.310:597.84:360.35:01-0.15:108:10Waxing Gibbous25Thu
26Fri11:287.511:528.35:37-0.25:56-0.35:098:11Waxing Gibbous26Fri
27Sat12:257.76:34-0.76:49-0.55:098:12Full Moon27Sat
28Sun12:448.61:227.87:29-1.17:42-0.55:088:13Full Moon28Sun
29Mon1:368.82:177.88:23-1.38:35-0.55:088:14Full Moon29Mon
30Tue2:288.93:117.89:16-1.49:27-0.35:078:15Full Moon30Tue
31Wed3:208.84:057.610:09-1.310:20-0.15:078:16Waning Gibbous31Wed
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 3:00 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 72% 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 Waning Gibbous (72% 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