43.0785’ N, 70.7253’ W

Seavey Island, NH

33°
H 58°
L 33°
NW
4mph
High tide
10:24 am

Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Saturday, October 24, 2026
The tide is currently rising in Seavey Island, NH.
Next low tide : 4:36 pm (0.1 ft)
Next high tide : in 6h 09m at 10:24 am (8.8 ft)
Sunset today : 5:46 pm
Sunrise tomorrow : 7:07 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

Seavey Island, NH Tides - Apr 1812

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:448.52:147.87:580.38:080.95:286:13Waning Gibbous1Wed
2Thu2:238.42:577.68:400.48:511.05:266:14Waning Gibbous2Thu
3Fri3:068.33:467.49:280.59:401.15:256:15Third Quarter3Fri
4Sat3:568.34:397.410:200.610:351.25:236:16Third Quarter4Sat
5Sun4:528.35:387.511:180.511:351.15:216:17Third Quarter5Sun
6Mon5:538.46:397.712:180.45:196:18Third Quarter6Mon
7Tue6:578.67:408.212:380.81:190.15:186:19Waning Crescent7Tue
8Wed8:009.08:368.81:410.32:17-0.35:166:21Waning Crescent8Wed
9Thu8:589.49:299.42:41-0.33:12-0.75:146:22Waning Crescent9Thu
10Fri9:549.710:209.93:37-0.94:03-1.15:126:23New Moon10Fri
11Sat10:489.911:1010.24:30-1.44:53-1.25:116:24New Moon11Sat
12Sun11:419.95:23-1.75:43-1.25:096:25New Moon12Sun
13Mon12:0010.412:349.86:15-1.76:33-1.05:076:26Waxing Crescent13Mon
14Tue12:5110.31:279.47:07-1.67:24-0.65:066:27Waxing Crescent14Tue
15Wed1:4210.02:229.08:01-1.28:17-0.15:046:29Waxing Crescent15Wed
16Thu2:369.63:208.58:57-0.79:140.45:026:30First Quarter16Thu
17Fri3:349.14:208.19:57-0.210:140.85:016:31First Quarter17Fri
18Sat4:348.65:227.810:580.211:171.24:596:32First Quarter18Sat
19Sun5:378.36:247.712:000.64:586:33First Quarter19Sun
20Mon6:418.17:247.712:211.31:010.74:566:34Waxing Gibbous20Mon
21Tue7:418.08:177.91:231.21:570.84:546:36Waxing Gibbous21Tue
22Wed8:358.09:038.12:191.12:450.74:536:37Waxing Gibbous22Wed
23Thu9:228.19:448.33:080.83:280.74:516:38Waxing Gibbous23Thu
24Fri10:058.210:218.53:510.64:060.74:506:39Full Moon24Fri
25Sat10:448.210:568.64:300.44:420.74:486:40Full Moon25Sat
26Sun11:228.211:308.75:070.25:160.74:476:41Full Moon26Sun
27Mon11:588.25:430.15:490.74:456:42Full Moon27Mon
28Tue12:048.812:358.16:180.16:240.84:446:44Full Moon28Tue
29Wed12:388.81:128.06:550.17:010.94:426:45Waning Gibbous29Wed
30Thu1:158.81:527.97:340.17:411.04:416:46Waning Gibbous30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8419870)

Common Questions About Seavey Island, NH Tides

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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 97% 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 Full Moon (97% 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