Nearby Harbors
43.0785’ N, 70.7253’ W

Seavey Island, NH

65°
H -°
L 63°
SSE
5mph
Low tide
7:49 pm
Photo Credits

Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Sunday, September 13, 2026
The tide is currently falling in Seavey Island, NH.
Next low tide : in 3h 53m at 7:49 pm (-0.4 ft)
Next high tide (tomorrow) : 2:05 am (8.9 ft)
Sunset today : 6:56 pm
Sunrise tomorrow : 6:20 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

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Seavey Island, NH Tides - Sep 1883

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:058.611:209.14:48-0.15:020.25:106:22New Moon1Sat
2Sun11:448.75:280.05:440.25:116:20New Moon2Sun
3Mon12:008.912:218.76:050.26:240.35:136:19Waxing Crescent3Mon
4Tue12:388.612:568.66:410.47:020.45:146:17Waxing Crescent4Tue
5Wed1:168.41:328.57:170.67:420.65:156:15Waxing Crescent5Wed
6Thu1:568.12:108.47:540.98:240.85:166:13Waxing Crescent6Thu
7Fri2:387.82:528.28:341.19:081.05:176:12Waxing Crescent7Fri
8Sat3:237.53:378.19:181.49:571.15:186:10First Quarter8Sat
9Sun4:137.24:278.010:061.510:491.25:196:08First Quarter9Sun
10Mon5:067.15:208.010:591.611:451.25:206:06First Quarter10Mon
11Tue6:037.16:178.111:551.65:216:05First Quarter11Tue
12Wed7:007.37:148.312:421.012:531.45:226:03Waxing Gibbous12Wed
13Thu7:557.78:098.71:370.71:501.05:236:01Waxing Gibbous13Thu
14Fri8:458.29:019.12:280.32:430.45:255:59Waxing Gibbous14Fri
15Sat9:328.79:519.53:16-0.23:34-0.15:265:57Full Moon15Sat
16Sun10:189.310:409.74:03-0.64:24-0.75:275:56Full Moon16Sun
17Mon11:059.711:309.94:49-0.95:13-1.15:285:54Full Moon17Mon
18Tue11:5210.15:36-1.06:03-1.35:295:52Waning Gibbous18Tue
19Wed12:219.812:4110.26:23-1.06:55-1.35:305:50Waning Gibbous19Wed
20Thu1:139.61:3210.17:13-0.87:49-1.15:315:48Waning Gibbous20Thu
21Fri2:089.22:269.98:06-0.48:46-0.85:325:47Waning Gibbous21Fri
22Sat3:068.83:259.69:030.09:48-0.45:335:45Third Quarter22Sat
23Sun4:098.44:299.210:050.410:530.05:355:43Third Quarter23Sun
24Mon5:158.15:358.911:100.711:590.25:365:41Third Quarter24Mon
25Tue6:228.06:438.812:170.95:375:39Waning Crescent25Tue
26Wed7:268.17:468.71:040.31:230.85:385:38Waning Crescent26Wed
27Thu8:248.38:438.82:030.32:220.65:395:36Waning Crescent27Thu
28Fri9:148.59:338.82:560.33:150.45:405:34Waning Crescent28Fri
29Sat9:588.610:188.73:420.34:010.35:415:32New Moon29Sat
30Sun10:388.710:598.64:220.34:430.25:425:30New Moon30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8419870)

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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 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 Waxing 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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