Nearby Harbors
43.0785’ N, 70.7253’ W

Seavey Island, NH

64°
H -°
L 61°
SSW
7mph
High tide
8:30 pm
Photo Credits

Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Thursday, November 5, 2026
The tide is currently rising in Seavey Island, NH.
Next low tide (tomorrow) : 2:34 am (0.4 ft)
Next high tide : in 1h 55m at 8:30 pm (8.5 ft)
Sunset today : 4:30 pm
Sunrise tomorrow : 6:22 am
Moon phase : Waning Crescent (13% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

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Seavey Island, NH Tides - Dec 1790

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:098.76:368.312:230.36:594:13Waning Crescent1Wed
2Thu7:079.27:398.512:430.11:25-0.27:004:13Waning Crescent2Thu
3Fri8:049.68:408.71:42-0.12:25-0.77:014:12Waning Crescent3Fri
4Sat8:5910.19:378.92:38-0.33:22-1.17:024:12New Moon4Sat
5Sun9:5310.410:339.13:33-0.54:16-1.57:034:12New Moon5Sun
6Mon10:4610.511:279.14:26-0.65:09-1.67:044:12New Moon6Mon
7Tue11:3810.55:19-0.66:01-1.67:054:12New Moon7Tue
8Wed12:209.112:3010.26:11-0.56:52-1.37:064:12Waxing Crescent8Wed
9Thu1:128.91:239.87:04-0.27:43-1.07:074:12Waxing Crescent9Thu
10Fri2:058.72:169.37:580.18:36-0.57:084:12Waxing Crescent10Fri
11Sat2:598.53:118.88:540.59:29-0.17:094:12First Quarter11Sat
12Sun3:538.34:088.39:530.810:230.47:104:12First Quarter12Sun
13Mon4:488.15:067.810:521.011:170.87:104:12First Quarter13Mon
14Tue5:428.06:057.511:531.17:114:12First Quarter14Tue
15Wed6:368.07:047.312:111.012:521.17:124:13Waxing Gibbous15Wed
16Thu7:288.18:007.31:041.21:481.07:134:13Waxing Gibbous16Thu
17Fri8:168.28:507.31:541.32:390.77:134:13Waxing Gibbous17Fri
18Sat9:018.49:367.42:411.23:240.57:144:14Waxing Gibbous18Sat
19Sun9:428.610:187.63:241.14:050.37:144:14Full Moon19Sun
20Mon10:218.710:597.74:041.04:440.17:154:14Full Moon20Mon
21Tue10:598.911:377.84:430.95:210.07:154:15Full Moon21Tue
22Wed11:378.95:210.85:58-0.27:164:15Full Moon22Wed
23Thu12:157.912:159.06:000.76:35-0.37:164:16Waning Gibbous23Thu
24Fri12:538.012:559.06:400.67:13-0.37:174:17Waning Gibbous24Fri
25Sat1:338.11:388.97:230.57:55-0.37:174:17Waning Gibbous25Sat
26Sun2:158.22:248.88:100.58:40-0.37:174:18Waning Gibbous26Sun
27Mon3:018.43:158.69:020.49:29-0.27:184:19Third Quarter27Mon
28Tue3:518.54:118.49:580.410:22-0.17:184:19Third Quarter28Tue
29Wed4:458.75:118.210:580.211:180.07:184:20Third Quarter29Wed
30Thu5:428.96:158.012:020.17:184:21Waning Crescent30Thu
31Fri6:439.27:218.112:180.11:07-0.27:184:22Waning 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 spring phase. Tonight's moon is 13% 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 (13% 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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