Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Seavey Island, NH.
Next low tide : 12:19 pm (0.5 ft)
Next high tide : in 5h 14m at 6:10 am (8.3 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:03 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

Seavey Island, NH Tides - Feb 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:359.510:128.53:110.03:54-0.96:574:55Full Moon1Wed
2Thu10:269.611:018.64:05-0.24:44-1.06:564:56Full Moon2Thu
3Fri11:149.611:478.74:54-0.35:29-1.06:554:58Full Moon3Fri
4Sat11:589.45:40-0.36:12-0.86:544:59Full Moon4Sat
5Sun12:288.612:409.26:24-0.26:52-0.66:535:00Waning Gibbous5Sun
6Mon1:088.51:208.87:060.07:30-0.26:515:02Waning Gibbous6Mon
7Tue1:468.42:008.47:470.28:090.16:505:03Waning Gibbous7Tue
8Wed2:258.22:418.18:300.58:480.56:495:04Waning Gibbous8Wed
9Thu3:058.03:257.79:140.79:300.86:485:06Third Quarter9Thu
10Fri3:487.94:137.310:020.910:151.16:465:07Third Quarter10Fri
11Sat4:347.85:057.110:531.111:041.36:455:08Third Quarter11Sat
12Sun5:257.76:016.911:481.111:571.46:445:10Third Quarter12Sun
13Mon6:197.77:006.912:451.16:425:11Waning Crescent13Mon
14Tue7:167.97:577.012:531.41:420.86:415:12Waning Crescent14Tue
15Wed8:108.28:497.41:491.22:340.56:395:14Waning Crescent15Wed
16Thu9:008.69:367.82:410.83:210.16:385:15Waning Crescent16Thu
17Fri9:479.010:218.23:290.44:06-0.36:365:16New Moon17Fri
18Sat10:339.311:058.64:16-0.14:49-0.76:355:17New Moon18Sat
19Sun11:199.511:499.05:03-0.55:33-1.06:345:19New Moon19Sun
20Mon12:069.65:50-0.86:17-1.16:325:20Waxing Crescent20Mon
21Tue12:349.312:559.56:38-1.07:03-1.16:305:21Waxing Crescent21Tue
22Wed1:219.41:459.37:29-1.07:52-0.96:295:23Waxing Crescent22Wed
23Thu2:119.42:409.08:23-0.88:44-0.66:275:24Waxing Crescent23Thu
24Fri3:069.33:398.69:21-0.69:41-0.26:265:25First Quarter24Fri
25Sat4:059.14:438.210:24-0.310:430.16:245:27First Quarter25Sat
26Sun5:088.95:517.911:31-0.111:490.46:235:28First Quarter26Sun
27Mon6:168.87:017.812:40-0.16:215:29Waxing Gibbous27Mon
28Tue7:248.88:078.012:570.51:46-0.16:195:30Waxing Gibbous28Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8419870)

Common Questions About Seavey Island, NH Tides

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What time does the tide turn (slack tide) in Seavey Island, NH today?

Slack tide in Seavey Island, NH is approximately 9:14 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Seavey Island, NH?

Seavey Island, NH is currently in a neap phase. Tonight's moon is 58% 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 minimum.

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 First Quarter (58% illuminated). This places Seavey Island, NH in a neap tide cycle, so tidal ranges are near their weekly minimum 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