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

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 1h 07m at 12:43 pm (0.3 ft)
Next high tide : 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 - Apr 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:086.49:015.72:131.53:021.06:247:10First Quarter1Mon
2Tue9:106.310:015.73:141.74:051.06:227:11First Quarter2Tue
3Wed10:126.310:575.94:181.65:041.06:217:12Waxing Gibbous3Wed
4Thu11:086.511:456.25:171.45:540.86:197:13Waxing Gibbous4Thu
5Fri11:566.76:061.16:360.56:177:14Waxing Gibbous5Fri
6Sat12:276.512:406.96:490.87:140.36:157:15Waxing Gibbous6Sat
7Sun1:056.81:207.17:290.47:490.26:147:17Full Moon7Sun
8Mon1:417.21:597.28:070.18:240.06:127:18Full Moon8Mon
9Tue2:157.42:387.38:46-0.29:000.06:107:19Full Moon9Tue
10Wed2:507.73:177.39:25-0.59:380.06:097:20Full Moon10Wed
11Thu3:277.93:597.210:07-0.610:190.06:077:21Waning Gibbous11Thu
12Fri4:077.94:447.110:52-0.611:030.26:057:22Waning Gibbous12Fri
13Sat4:527.95:346.911:41-0.511:530.46:047:24Waning Gibbous13Sat
14Sun5:437.76:316.612:35-0.36:027:25Third Quarter14Sun
15Mon6:427.57:366.512:500.61:36-0.16:007:26Third Quarter15Mon
16Tue7:487.38:446.41:530.82:420.15:597:27Third Quarter16Tue
17Wed8:597.29:536.63:010.93:510.15:577:28Waning Crescent17Wed
18Thu10:117.310:586.94:140.74:590.05:557:29Waning Crescent18Thu
19Fri11:177.411:547.35:230.45:58-0.25:547:31Waning Crescent19Fri
20Sat12:157.66:230.06:51-0.35:527:32Waning Crescent20Sat
21Sun12:457.61:087.67:17-0.37:38-0.35:517:33New Moon21Sun
22Mon1:317.91:587.68:06-0.68:23-0.25:497:34New Moon22Mon
23Tue2:158.02:447.58:53-0.79:05-0.15:487:35New Moon23Tue
24Wed2:568.03:297.39:37-0.69:460.25:467:36New Moon24Wed
25Thu3:367.84:127.010:19-0.510:270.55:457:38Waxing Crescent25Thu
26Fri4:167.64:566.711:02-0.211:080.95:437:39Waxing Crescent26Fri
27Sat4:577.35:416.411:450.111:521.25:427:40Waxing Crescent27Sat
28Sun5:417.06:316.112:330.55:407:41Waxing Crescent28Sun
29Mon6:316.77:246.012:401.41:230.75:397:42First Quarter29Mon
30Tue7:256.58:185.91:331.62:170.95:377:43First Quarter30Tue
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 3:41 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