Nearby Harbors
43.0533’ N, 70.9133’ W

Squamscott River, Great Bay, NH

61°
H 63°
L 45°
NE
10mph
High tide
11:52 am
Photo Credits

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

TIDE TIMES for Wednesday, September 23, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide : 6:09 pm (1.1 ft)
Next high tide : in 50m at 11:52 am (6.3 ft)
Sunset today : 6:39 pm
Sunrise tomorrow : 6:32 am
Moon phase : Waxing Gibbous (90% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

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Squamscott River, Great Bay, NH Tides - May 1932

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:306.611:576.95:430.96:050.75:377:44Waning Crescent1Sun
2Mon12:186.66:330.76:470.75:357:45Waning Crescent2Mon
3Tue12:377.01:026.67:160.47:240.85:347:46Waning Crescent3Tue
4Wed1:147.21:436.67:560.37:590.85:327:47New Moon4Wed
5Thu1:497.22:226.68:320.28:330.95:317:48New Moon5Thu
6Fri2:237.32:596.59:070.19:071.05:307:49New Moon6Fri
7Sat2:567.33:356.49:420.29:411.15:297:51New Moon7Sat
8Sun3:307.24:126.310:170.210:171.25:277:52Waxing Crescent8Sun
9Mon4:057.14:506.210:550.310:561.35:267:53Waxing Crescent9Mon
10Tue4:447.15:316.111:360.411:391.35:257:54Waxing Crescent10Tue
11Wed5:287.06:186.012:220.55:247:55Waxing Crescent11Wed
12Thu6:186.97:106.112:291.41:120.55:237:56First Quarter12Thu
13Fri7:146.98:036.31:231.32:040.55:227:57First Quarter13Fri
14Sat8:136.98:586.72:221.12:590.45:217:58First Quarter14Sat
15Sun9:157.09:547.13:240.93:550.35:197:59Waxing Gibbous15Sun
16Mon10:187.110:497.64:270.44:510.15:188:00Waxing Gibbous16Mon
17Tue11:187.311:418.15:28-0.15:46-0.15:178:01Waxing Gibbous17Tue
18Wed12:167.46:25-0.66:38-0.25:168:02Full Moon18Wed
19Thu12:328.51:117.57:19-1.07:29-0.35:168:04Full Moon19Thu
20Fri1:238.72:067.68:12-1.28:21-0.25:158:05Full Moon20Fri
21Sat2:148.83:017.59:06-1.39:14-0.15:148:06Full Moon21Sat
22Sun3:078.73:557.39:59-1.110:070.15:138:06Waning Gibbous22Sun
23Mon4:008.44:497.110:53-0.911:020.45:128:07Waning Gibbous23Mon
24Tue4:568.15:476.911:48-0.55:118:08Waning Gibbous24Tue
25Wed5:547.66:466.712:000.712:46-0.15:118:09Third Quarter25Wed
26Thu6:547.27:446.61:011.01:440.25:108:10Third Quarter26Thu
27Fri7:556.88:416.62:051.12:410.55:098:11Third Quarter27Fri
28Sat8:566.59:366.63:081.23:360.85:098:12Third Quarter28Sat
29Sun9:556.310:276.74:101.24:301.05:088:13Waning Crescent29Sun
30Mon10:526.211:146.95:081.05:191.15:078:14Waning Crescent30Mon
31Tue11:446.211:577.06:000.86:041.15:078:15Waning Crescent31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8422687)

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Common Questions About Squamscott River, Great Bay, NH Tides

Collapse All
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 90% 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 Waxing Gibbous (90% 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

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