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 : 12:43 pm (0.3 ft)
Next high tide : in 1h 19m at 6:04 am (7.0 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 - Oct 2057

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:347.73:508.010:00-0.310:28-0.66:416:24Waxing Crescent1Mon
2Tue4:207.54:348.010:44-0.111:17-0.66:426:22Waxing Crescent2Tue
3Wed5:097.35:247.911:330.16:446:20Waxing Crescent3Wed
4Thu6:057.06:207.812:11-0.412:270.36:456:19First Quarter4Thu
5Fri7:086.87:237.61:11-0.21:270.66:466:17First Quarter5Fri
6Sat8:156.68:317.42:150.02:320.76:476:15First Quarter6Sat
7Sun9:246.69:427.43:240.13:420.86:486:13Waxing Gibbous7Sun
8Mon10:316.810:497.54:330.14:520.66:496:12Waxing Gibbous8Mon
9Tue11:317.111:497.75:36-0.15:550.36:506:10Waxing Gibbous9Tue
10Wed12:247.46:31-0.26:510.06:526:08Waxing Gibbous10Wed
11Thu12:437.71:117.67:19-0.37:41-0.26:536:07Full Moon11Thu
12Fri1:327.71:557.78:04-0.28:27-0.36:546:05Full Moon12Fri
13Sat2:197.62:377.78:46-0.19:11-0.36:556:03Full Moon13Sat
14Sun3:037.43:167.79:260.19:53-0.26:566:02Waning Gibbous14Sun
15Mon3:457.23:547.510:040.410:340.06:586:00Waning Gibbous15Mon
16Tue4:266.94:327.310:430.711:160.26:595:58Waning Gibbous16Tue
17Wed5:096.55:137.011:231.07:005:57Waning Gibbous17Wed
18Thu5:566.35:596.712:000.512:081.37:015:55Third Quarter18Thu
19Fri6:476.06:516.512:480.812:571.57:025:54Third Quarter19Fri
20Sat7:415.97:466.41:411.01:511.77:045:52Third Quarter20Sat
21Sun8:375.88:446.42:361.12:481.77:055:50Third Quarter21Sun
22Mon9:335.99:436.53:331.13:471.67:065:49Third Quarter22Mon
23Tue10:266.210:376.74:280.94:441.37:075:47Waning Crescent23Tue
24Wed11:136.511:276.95:180.75:350.97:095:46Waning Crescent24Wed
25Thu11:557.06:020.46:210.47:105:44Waning Crescent25Thu
26Fri12:127.212:357.46:430.17:050.07:115:43New Moon26Fri
27Sat12:567.51:157.87:23-0.17:49-0.57:125:42New Moon27Sat
28Sun1:417.61:558.28:05-0.38:34-0.87:145:40New Moon28Sun
29Mon2:267.72:398.48:48-0.49:21-1.07:155:39New Moon29Mon
30Tue3:137.73:248.59:34-0.310:09-1.07:165:37Waxing Crescent30Tue
31Wed4:027.64:138.410:22-0.211:00-0.97:175:36Waxing Crescent31Wed
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 9:23 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 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