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

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 5h 46m at 9:04 pm (-0.1 ft)
Next high tide (tomorrow) : 3:00 am (8.6 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:18 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - May 2070

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:466.96:306.212:310.55:367:45Third Quarter1Thu
2Fri6:336.77:186.212:441.31:180.65:357:46Third Quarter2Fri
3Sat7:246.68:096.31:341.32:070.75:337:47Third Quarter3Sat
4Sun8:186.69:016.52:281.22:590.75:327:48Third Quarter4Sun
5Mon9:166.79:546.83:261.03:540.55:317:49Waning Crescent5Mon
6Tue10:156.910:477.24:250.74:480.35:297:50Waning Crescent6Tue
7Wed11:137.111:377.75:220.25:410.05:287:51Waning Crescent7Wed
8Thu12:077.46:16-0.36:32-0.25:277:53Waning Crescent8Thu
9Fri12:268.212:597.77:08-0.87:22-0.55:267:54New Moon9Fri
10Sat1:168.61:527.97:59-1.28:13-0.65:247:55New Moon10Sat
11Sun2:068.92:458.08:51-1.49:05-0.75:237:56New Moon11Sun
12Mon2:588.93:397.99:44-1.59:57-0.65:227:57Waxing Crescent12Mon
13Tue3:518.84:337.810:37-1.410:52-0.45:217:58Waxing Crescent13Tue
14Wed4:458.65:317.611:33-1.111:50-0.15:207:59Waxing Crescent14Wed
15Thu5:448.26:327.412:31-0.85:198:00First Quarter15Thu
16Fri6:477.87:347.312:520.21:32-0.45:188:01First Quarter16Fri
17Sat7:517.48:367.21:570.42:34-0.15:178:02First Quarter17Sat
18Sun8:567.19:367.23:040.63:350.25:168:03First Quarter18Sun
19Mon10:006.910:347.24:110.64:360.45:158:04Waxing Gibbous19Mon
20Tue11:016.811:267.35:130.55:310.55:148:05Waxing Gibbous20Tue
21Wed11:556.76:080.36:200.65:138:06Waxing Gibbous21Wed
22Thu12:137.412:436.76:560.27:040.65:138:07Waxing Gibbous22Thu
23Fri12:557.51:286.77:400.17:440.75:128:08Full Moon23Fri
24Sat1:357.52:096.78:200.08:220.85:118:09Full Moon24Sat
25Sun2:127.52:486.78:580.08:590.85:108:10Full Moon25Sun
26Mon2:497.43:266.69:330.19:340.95:108:11Full Moon26Mon
27Tue3:247.44:036.610:080.110:111.05:098:12Waning Gibbous27Tue
28Wed4:007.34:406.510:440.210:491.05:088:13Waning Gibbous28Wed
29Thu4:377.25:186.511:210.211:301.15:088:14Waning Gibbous29Thu
30Fri5:177.16:006.512:010.35:078:14Waning Gibbous30Fri
31Sat6:017.06:446.612:141.112:450.45:078:15Third Quarter31Sat
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 12:02 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 2% 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 New Moon (2% 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