Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in Seavey Island, NH.
Next low tide : in 35m at 4:32 am (0.5 ft)
Next high tide : 10:43 am (7.4 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:05 am
Moon phase : Waxing Gibbous (95% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

Seavey Island, NH Tides - May 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:469.62:288.38:09-0.78:160.65:367:43Waning Gibbous1Sat
2Sun2:329.33:158.08:56-0.39:031.05:347:44Waning Gibbous2Sun
3Mon3:198.84:047.79:450.29:531.35:337:46Waning Gibbous3Mon
4Tue4:088.44:547.510:350.610:451.65:327:47Third Quarter4Tue
5Wed4:598.05:457.311:250.911:401.85:307:48Third Quarter5Wed
6Thu5:527.76:367.312:161.25:297:49Third Quarter6Thu
7Fri6:487.57:277.412:371.81:071.35:287:50Third Quarter7Fri
8Sat7:447.48:177.71:331.71:571.45:277:51Waning Crescent8Sat
9Sun8:387.59:037.92:281.42:441.45:257:52Waning Crescent9Sun
10Mon9:297.69:468.33:181.13:281.35:247:53Waning Crescent10Mon
11Tue10:167.710:268.64:040.74:101.25:237:55Waning Crescent11Tue
12Wed11:007.811:058.94:470.44:501.15:227:56New Moon12Wed
13Thu11:437.911:459.15:280.15:300.95:217:57New Moon13Thu
14Fri12:267.96:10-0.26:110.85:207:58New Moon14Fri
15Sat12:279.31:108.06:52-0.36:550.75:197:59New Moon15Sat
16Sun1:119.41:558.07:37-0.47:420.75:188:00Waxing Crescent16Sun
17Mon1:589.42:448.18:24-0.48:320.75:178:01Waxing Crescent17Mon
18Tue2:499.33:368.19:15-0.49:270.75:168:02Waxing Crescent18Tue
19Wed3:449.24:338.310:09-0.310:270.75:158:03First Quarter19Wed
20Thu4:449.05:318.411:06-0.211:310.75:148:04First Quarter20Thu
21Fri5:478.76:318.712:050.05:138:05First Quarter21Fri
22Sat6:528.67:318.912:370.51:050.15:128:06First Quarter22Sat
23Sun7:588.58:309.31:430.32:040.15:118:07Waxing Gibbous23Sun
24Mon9:028.59:269.52:46-0.13:020.15:118:08Waxing Gibbous24Mon
25Tue10:028.610:189.83:45-0.43:570.25:108:09Waxing Gibbous25Tue
26Wed10:568.611:079.84:40-0.74:480.25:098:10Full Moon26Wed
27Thu11:488.511:559.85:31-0.85:360.35:088:11Full Moon27Thu
28Fri12:368.46:19-0.86:230.55:088:12Full Moon28Fri
29Sat12:409.61:228.37:04-0.67:080.75:078:12Full Moon29Sat
30Sun1:249.42:068.17:49-0.37:520.95:078:13Waning Gibbous30Sun
31Mon2:079.12:507.98:310.08:361.25:068:14Waning Gibbous31Mon
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 7:37 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 spring phase. Tonight's moon is 95% 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 Gibbous (95% 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