Nearby Harbors
43.0785’ N, 70.7253’ W

Seavey Island, NH

65°
H -°
L 63°
SW
4mph
High tide
2:05 am
Photo Credits

Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Monday, September 14, 2026
The tide is currently rising in Seavey Island, NH.
Next low tide : 8:05 am (0.2 ft)
Next high tide : in 1h 17m at 2:05 am (8.9 ft)
Sunset today : 6:55 pm
Sunrise tomorrow : 6:21 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

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Seavey Island, NH Tides - Dec 1882

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:447.93:548.19:401.210:120.76:594:13Third Quarter1Fri
2Sat4:357.84:497.710:371.411:031.07:004:13Third Quarter2Sat
3Sun5:277.75:457.411:341.411:541.27:014:12Third Quarter3Sun
4Mon6:187.86:427.312:311.47:024:12Third Quarter4Mon
5Tue7:097.97:377.312:451.31:271.27:034:12Waning Crescent5Tue
6Wed7:578.18:297.31:351.32:180.97:044:12Waning Crescent6Wed
7Thu8:418.49:167.42:211.33:040.67:054:12Waning Crescent7Thu
8Fri9:238.69:597.63:041.13:460.37:064:12Waning Crescent8Fri
9Sat10:038.910:417.73:461.04:260.17:064:12New Moon9Sat
10Sun10:439.111:237.94:260.85:06-0.27:074:12New Moon10Sun
11Mon11:239.25:070.75:46-0.47:084:12New Moon11Mon
12Tue12:048.012:059.35:490.56:28-0.57:094:12Waxing Crescent12Tue
13Wed12:468.112:509.46:340.47:11-0.67:104:12Waxing Crescent13Wed
14Thu1:308.31:379.37:210.47:57-0.67:114:12Waxing Crescent14Thu
15Fri2:188.42:289.18:130.38:47-0.57:114:12Waxing Crescent15Fri
16Sat3:098.53:238.89:090.39:39-0.37:124:13First Quarter16Sat
17Sun4:038.74:238.610:090.310:35-0.17:134:13First Quarter17Sun
18Mon5:008.85:278.311:120.211:340.07:134:13First Quarter18Mon
19Tue6:009.06:338.112:170.17:144:14Waxing Gibbous19Tue
20Wed7:019.27:398.112:340.11:23-0.27:154:14Waxing Gibbous20Wed
21Thu8:019.48:418.21:350.22:24-0.57:154:15Waxing Gibbous21Thu
22Fri8:579.79:388.32:330.13:21-0.77:164:15Waxing Gibbous22Fri
23Sat9:509.810:318.43:280.04:14-0.97:164:16Full Moon23Sat
24Sun10:409.811:218.54:200.05:03-1.07:164:16Full Moon24Sun
25Mon11:289.75:090.05:50-0.97:174:17Full Moon25Mon
26Tue12:088.412:149.55:560.16:34-0.77:174:18Waning Gibbous26Tue
27Wed12:528.312:589.26:420.37:17-0.47:174:18Waning Gibbous27Wed
28Thu1:368.21:428.87:270.57:59-0.17:184:19Waning Gibbous28Thu
29Fri2:198.12:278.48:140.88:420.37:184:20Waning Gibbous29Fri
30Sat3:027.93:138.09:021.09:260.67:184:21Third Quarter30Sat
31Sun3:487.84:037.69:521.210:150.97:184:21Third Quarter31Sun
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 14% 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 Waxing Crescent (14% 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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