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

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 2h 25m at 11:33 pm (1.0 ft)
Next high tide (tomorrow) : 5:20 am (7.1 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:10 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jun 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:077.38:477.42:150.42:440.05:068:16Third Quarter1Sat
2Sun9:117.09:467.43:210.43:440.35:068:17Waning Crescent2Sun
3Mon10:156.810:427.44:260.44:440.55:058:17Waning Crescent3Mon
4Tue11:146.711:347.55:270.35:390.65:058:18Waning Crescent4Tue
5Wed12:086.76:210.26:280.75:058:19Waning Crescent5Wed
6Thu12:217.512:566.67:090.17:130.85:048:19New Moon6Thu
7Fri1:057.51:416.67:530.07:540.85:048:20New Moon7Fri
8Sat1:457.52:236.68:340.08:330.95:048:21New Moon8Sat
9Sun2:247.53:026.69:120.09:110.95:048:21New Moon9Sun
10Mon3:027.43:406.69:480.19:481.05:038:22New Moon10Mon
11Tue3:387.44:176.610:230.110:251.05:038:22Waxing Crescent11Tue
12Wed4:157.34:546.510:580.211:041.15:038:23Waxing Crescent12Wed
13Thu4:537.15:336.611:360.311:461.15:038:23Waxing Crescent13Thu
14Fri5:337.06:146.612:150.45:038:24Waxing Crescent14Fri
15Sat6:186.86:576.712:321.112:580.45:038:24First Quarter15Sat
16Sun7:066.77:426.91:201.01:430.55:038:25First Quarter16Sun
17Mon7:586.68:307.12:120.92:310.55:038:25First Quarter17Mon
18Tue8:546.69:237.43:070.73:230.55:038:25Waxing Gibbous18Tue
19Wed9:546.610:187.74:060.44:190.45:048:26Waxing Gibbous19Wed
20Thu10:556.811:148.15:060.05:160.25:048:26Waxing Gibbous20Thu
21Fri11:547.06:04-0.46:130.05:048:26Waxing Gibbous21Fri
22Sat12:098.412:517.36:59-0.87:08-0.25:048:26Full Moon22Sat
23Sun1:048.71:477.57:54-1.18:04-0.45:048:26Full Moon23Sun
24Mon1:598.92:437.78:48-1.39:00-0.55:058:27Full Moon24Mon
25Tue2:558.93:387.89:42-1.49:56-0.55:058:27Waning Gibbous25Tue
26Wed3:508.84:327.910:35-1.310:52-0.45:058:27Waning Gibbous26Wed
27Thu4:458.55:277.811:29-1.011:50-0.25:068:27Waning Gibbous27Thu
28Fri5:438.16:247.712:23-0.75:068:27Third Quarter28Fri
29Sat6:427.67:217.612:510.01:19-0.35:078:27Third Quarter29Sat
30Sun7:437.28:177.51:530.22:150.15:078:26Third Quarter30Sun
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 2:26 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 81% 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 Waning Gibbous (81% 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