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

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide : 3:35 pm (0.7 ft)
Next high tide : in 1h 35m at 9:06 am (6.5 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:04 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Dec 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:148.011:517.25:210.26:00-0.66:554:10New Moon1Sun
2Mon12:028.36:09-0.16:49-0.96:564:09New Moon2Mon
3Tue12:417.412:518.66:58-0.37:38-1.26:574:09New Moon3Tue
4Wed1:317.61:428.77:49-0.48:29-1.36:584:09Waxing Crescent4Wed
5Thu2:237.62:348.78:41-0.59:20-1.36:594:09Waxing Crescent5Thu
6Fri3:167.63:288.59:35-0.410:14-1.17:004:08Waxing Crescent6Fri
7Sat4:117.64:258.210:32-0.211:10-0.87:014:08Waxing Crescent7Sat
8Sun5:107.55:277.811:330.07:024:08First Quarter8Sun
9Mon6:117.46:327.412:09-0.512:380.17:034:08First Quarter9Mon
10Tue7:137.37:387.01:10-0.21:450.27:044:08First Quarter10Tue
11Wed8:147.38:446.82:110.12:530.27:054:08Waxing Gibbous11Wed
12Thu9:147.49:486.73:130.33:580.27:064:09Waxing Gibbous12Thu
13Fri10:107.410:456.74:130.44:570.07:064:09Waxing Gibbous13Fri
14Sat11:017.511:376.75:070.55:48-0.17:074:09Waxing Gibbous14Sat
15Sun11:477.65:550.56:34-0.27:084:09Full Moon15Sun
16Mon12:236.712:307.66:380.67:17-0.27:094:09Full Moon16Mon
17Tue1:066.71:107.57:190.67:56-0.27:094:10Full Moon17Tue
18Wed1:466.71:487.57:580.68:33-0.17:104:10Full Moon18Wed
19Thu2:246.62:257.48:350.79:080.07:104:10Waning Gibbous19Thu
20Fri3:016.63:017.29:120.79:430.17:114:11Waning Gibbous20Fri
21Sat3:376.53:387.19:490.810:190.27:114:11Waning Gibbous21Sat
22Sun4:156.54:186.910:300.910:570.37:124:12Waning Gibbous22Sun
23Mon4:546.55:016.611:131.011:380.57:124:12Third Quarter23Mon
24Tue5:376.55:486.512:011.07:134:13Third Quarter24Tue
25Wed6:216.66:396.312:230.612:510.97:134:14Third Quarter25Wed
26Thu7:096.77:346.21:100.71:450.87:134:14Third Quarter26Thu
27Fri8:016.98:336.32:010.72:430.67:144:15Waning Crescent27Fri
28Sat8:567.29:346.42:560.63:430.27:144:16Waning Crescent28Sat
29Sun9:527.610:326.73:540.44:41-0.27:144:17Waning Crescent29Sun
30Mon10:468.011:277.04:500.15:36-0.67:144:17Waning Crescent30Mon
31Tue11:408.45:44-0.26:28-1.17:154:18New Moon31Tue
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 12:20 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 67% 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 First Quarter (67% 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