Nearby Harbors
43.0785’ N, 70.7253’ W

Seavey Island, NH

65°
H -°
L 61°
SSW
1mph
High tide
4:23 am
Photo Credits

Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Wednesday, September 16, 2026
The tide is currently rising in Seavey Island, NH.
Next low tide (tomorrow) : 10:15 am (1.5 ft)
Next high tide (tomorrow) : in 5h 58m at 4:23 am (7.5 ft)
Sunset today : 6:51 pm
Sunrise tomorrow : 6:23 am
Moon phase : Waxing Crescent (30% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

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Seavey Island, NH Tides - Dec 1875

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:167.31:108.46:561.57:370.56:584:13Waxing Crescent1Wed
2Thu1:567.21:518.37:361.68:180.66:594:13Waxing Crescent2Thu
3Fri2:397.22:358.18:201.79:010.77:004:12Waxing Crescent3Fri
4Sat3:247.23:248.09:091.79:470.77:014:12First Quarter4Sat
5Sun4:117.34:167.910:031.610:360.77:024:12First Quarter5Sun
6Mon4:597.65:117.810:591.411:260.77:034:12First Quarter6Mon
7Tue5:498.06:097.811:571.07:044:12First Quarter7Tue
8Wed6:418.47:097.912:180.612:560.67:054:12Waxing Gibbous8Wed
9Thu7:339.08:078.11:120.41:550.07:064:12Waxing Gibbous9Thu
10Fri8:259.59:048.32:050.22:51-0.67:074:12Waxing Gibbous10Fri
11Sat9:169.99:598.52:580.03:45-1.07:084:12Full Moon11Sat
12Sun10:0810.310:538.63:51-0.14:38-1.47:094:12Full Moon12Sun
13Mon11:0110.411:488.64:43-0.25:31-1.57:104:12Full Moon13Mon
14Tue11:5610.45:36-0.26:24-1.47:104:12Waning Gibbous14Tue
15Wed12:438.612:5110.26:31-0.17:18-1.27:114:12Waning Gibbous15Wed
16Thu1:388.51:479.87:270.18:13-0.87:124:13Waning Gibbous16Thu
17Fri2:358.32:469.38:260.49:09-0.47:134:13Waning Gibbous17Fri
18Sat3:338.23:478.79:280.610:070.07:134:13Third Quarter18Sat
19Sun4:328.24:498.210:320.811:040.47:144:14Third Quarter19Sun
20Mon5:308.15:527.811:370.97:144:14Third Quarter20Mon
21Tue6:268.16:557.512:000.812:400.97:154:15Waning Crescent21Tue
22Wed7:218.27:557.312:561.11:410.87:154:15Waning Crescent22Wed
23Thu8:118.38:497.21:491.32:350.67:164:16Waning Crescent23Thu
24Fri8:578.49:377.22:371.43:240.57:164:16Waning Crescent24Fri
25Sat9:408.510:217.33:221.44:080.37:174:17Waning Crescent25Sat
26Sun10:208.511:027.34:031.44:480.27:174:17New Moon26Sun
27Mon10:588.611:417.34:421.35:260.27:174:18New Moon27Mon
28Tue11:368.65:201.36:020.27:184:19New Moon28Tue
29Wed12:187.312:138.65:571.36:370.27:184:20New Moon29Wed
30Thu12:557.412:508.66:351.27:130.27:184:20Waxing Crescent30Thu
31Fri1:327.41:298.57:141.27:460.27:184:21Waxing Crescent31Fri
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 transitional phase. Tonight's moon is 30% 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 shifting between spring and neap.

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 (30% illuminated). This places Seavey Island, NH in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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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