Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Seavey Island, NH.
Next low tide : 7:03 pm (1.4 ft)
Next high tide : in 2h 01m at 1:22 pm (7.5 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:07 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

Seavey Island, NH Tides - Dec 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:078.22:149.37:540.68:42-0.36:544:09Waning Gibbous1Mon
2Tue3:037.93:118.88:511.09:380.16:554:08Third Quarter2Tue
3Wed4:007.74:098.39:521.210:330.56:564:08Third Quarter3Wed
4Thu4:557.65:077.910:531.411:270.86:574:08Third Quarter4Thu
5Fri5:507.66:057.611:531.56:584:08Third Quarter5Fri
6Sat6:427.77:037.412:201.112:521.46:594:08Waning Crescent6Sat
7Sun7:317.87:567.31:101.31:471.27:004:07Waning Crescent7Sun
8Mon8:158.08:457.31:571.32:360.97:014:07Waning Crescent8Mon
9Tue8:578.29:307.42:411.43:200.77:024:07Waning Crescent9Tue
10Wed9:358.410:137.43:211.34:010.57:034:07New Moon10Wed
11Thu10:138.610:537.43:591.34:390.37:044:08New Moon11Thu
12Fri10:508.711:327.44:361.35:170.27:054:08New Moon12Fri
13Sat11:288.85:131.25:550.17:064:08New Moon13Sat
14Sun12:127.412:078.85:521.26:340.07:064:08Waxing Crescent14Sun
15Mon12:527.412:498.86:321.17:140.07:074:08Waxing Crescent15Mon
16Tue1:337.51:328.87:161.17:570.07:084:09Waxing Crescent16Tue
17Wed2:177.62:208.68:051.18:440.17:084:09Waxing Crescent17Wed
18Thu3:057.73:138.58:581.09:340.17:094:09First Quarter18Thu
19Fri3:578.04:108.39:570.910:270.27:104:10First Quarter19Fri
20Sat4:518.25:118.110:590.711:230.27:104:10First Quarter20Sat
21Sun5:478.66:158.012:030.47:114:10First Quarter21Sun
22Mon6:468.97:218.012:210.21:070.07:114:11Waxing Gibbous22Mon
23Tue7:449.38:248.11:210.22:10-0.47:124:12Waxing Gibbous23Tue
24Wed8:419.79:248.32:190.13:09-0.87:124:12Waxing Gibbous24Wed
25Thu9:369.910:208.43:160.04:04-1.17:124:13Full Moon25Thu
26Fri10:2910.111:148.44:09-0.14:57-1.37:134:13Full Moon26Fri
27Sat11:2210.05:02-0.15:49-1.27:134:14Full Moon27Sat
28Sun12:068.412:139.95:530.06:38-1.07:134:15Waning Gibbous28Sun
29Mon12:568.31:029.56:430.27:26-0.77:134:16Waning Gibbous29Mon
30Tue1:458.11:519.17:330.58:14-0.37:144:16Waning Gibbous30Tue
31Wed2:337.92:418.68:240.89:030.17:144:17Waning Gibbous31Wed
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 4:12 pm — 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 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