Nearby Harbors
43.0785’ N, 70.7253’ W

Seavey Island, NH

63°
H 68°
L 54°
SSW
4mph
High tide
8:55 am
Photo Credits

Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Friday, November 6, 2026
The tide is currently rising in Seavey Island, NH.
Next low tide : 3:07 pm (0.1 ft)
Next high tide : in 3h 52m at 8:55 am (8.9 ft)
Sunset today : 4:28 pm
Sunrise tomorrow : 6:24 am
Moon phase : Waning Crescent (7% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

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Seavey Island, NH Tides - Mar 1790

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:039.911:319.64:45-1.05:14-1.46:225:36Full Moon1Mon
2Tue11:5310.05:36-1.46:02-1.56:205:37Full Moon2Tue
3Wed12:199.912:459.96:27-1.66:50-1.46:185:39Waning Gibbous3Wed
4Thu1:0810.01:379.67:19-1.57:40-1.16:175:40Waning Gibbous4Thu
5Fri1:599.92:329.18:14-1.28:33-0.76:155:41Waning Gibbous5Fri
6Sat2:549.63:318.69:12-0.89:30-0.16:135:42Third Quarter6Sat
7Sun3:539.24:348.110:14-0.410:310.36:125:43Third Quarter7Sun
8Mon4:568.95:417.811:190.011:360.76:105:45Third Quarter8Mon
9Tue6:028.66:497.612:270.36:085:46Third Quarter9Tue
10Wed7:108.47:537.612:430.91:320.36:065:47Waning Crescent10Wed
11Thu8:128.48:497.81:470.92:310.36:055:48Waning Crescent11Thu
12Fri9:068.59:388.02:450.73:210.26:035:50Waning Crescent12Fri
13Sat9:548.610:218.23:350.54:050.16:015:51Waning Crescent13Sat
14Sun10:368.610:598.34:190.34:440.15:595:52New Moon14Sun
15Mon11:158.511:338.44:590.25:190.25:585:53New Moon15Mon
16Tue11:518.45:370.15:520.35:565:54New Moon16Tue
17Wed12:068.512:268.36:120.16:250.45:545:55New Moon17Wed
18Thu12:398.51:028.16:470.26:580.55:525:57Waxing Crescent18Thu
19Fri1:128.51:387.97:240.37:330.75:515:58Waxing Crescent19Fri
20Sat1:488.42:177.78:020.48:110.95:495:59Waxing Crescent20Sat
21Sun2:278.33:007.58:440.58:541.05:476:00Waxing Crescent21Sun
22Mon3:108.23:487.39:310.79:421.25:456:01First Quarter22Mon
23Tue3:598.14:417.210:230.710:351.35:436:02First Quarter23Tue
24Wed4:548.15:387.211:190.711:341.25:426:04First Quarter24Wed
25Thu5:548.26:387.512:190.65:406:05First Quarter25Thu
26Fri6:568.47:387.912:360.91:190.35:386:06Waxing Gibbous26Fri
27Sat7:588.88:338.51:390.42:15-0.25:366:07Waxing Gibbous27Sat
28Sun8:559.29:259.22:37-0.23:08-0.65:356:08Waxing Gibbous28Sun
29Mon9:509.610:159.73:32-0.83:59-1.05:336:09Full Moon29Mon
30Tue10:439.811:0510.24:25-1.34:48-1.25:316:11Full Moon30Tue
31Wed11:359.911:5510.45:18-1.75:38-1.35:296:12Full Moon31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8419870)

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Common Questions About Seavey Island, NH Tides

Collapse All
Is this week a spring tide or neap tide in Seavey Island, NH?

Seavey Island, NH is currently in a spring phase. Tonight's moon is 7% 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 Seavey Island, 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 Seavey Island, NH?

Tide predictions for Seavey Island, 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 Seavey Island, NH?

Tide data for Seavey Island, NH is sourced from NOAA Station #8419870. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8419870.

What is the moon phase in Seavey Island, NH tonight?

Tonight the moon over Seavey Island, NH is Waning Crescent (7% illuminated). This places Seavey Island, 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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